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http://dicom.nema.org
E-mail: dicom@medicalimaging.org
MINUTES
DICOM WORKING GROUP SIX
(Base Standard)
June 23-27, 2014
Offices of Vital Images
Edinburgh, UK
Members Present
Represented by
M
T
W
Th
F
ACR
Carl Zeiss Medical Software
GE Healthcare
JIRA
PixelMed
Philips Healthcare
James Philbin
Karl-Heinz Fleischer
Andrei Leontiev
Yukio Ito
David Clunie
Bas Revet
x
x
x
x
p
x
x
x
x
x
p
x
x
x
x
p
x
x
p
x
x
p
x
Siemens Healthcare
Toshiba MRI USA
Bjorn Nolte
Kevin O’Donnell
x
x
x
x
x
x
x
x
x
x
Members Not Present
Voting Representative
Agfa Healthcare
Konica Minolta Med. Imaging
*Merge Healthcare
Robert Horn
Michael Laconti
Ronald Cowan
1507
x
p
x
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
Alternate Voting Representatives,
Observers, Others Present
Affiliation
Canfield, Earl
Eslami, Abouzar
Harvey, Dave
Holliman, Leela
M
Horton, Mark
Klingler, Andreas
Knipe, Ruth
Koenig, Helmut
WG-12/Philips
WG-09/Carl Zeiss Medical
Medical Connection Ltd.
WG-08/Dapasoft-Canada
Health Infoway
WG-09/Indian Health Serv
WG-11/Siemens
WG-12/Siemens
WG-20/Siemens
Luszcz, Joe
Melo, Chris
WG-11/Philips
WG-08/Philips
p
Schadt, Christof
Schmidt, Teri Sippel
Solomon, Harry
WG-07/Brainlab
WG-08/Karos Health
WG-08/GE Healthcare
p
p
p
Van Hemert, Jano
Van Syckle, Don
Vastagh, Stephen
Virmani, Sunny
Whitby, Jonathan
WG-09/Optos Plc
DVS Consulting
MITA
WG-06/Carl Zeiss
WG-11/Toshiba
T
W
Th
p
x
p
x
F
p
p
p
p
p
x
p
p
p
p
p
p
x
x
x
x
x
p
p
x
x
x
x
x
p
x
x
x
x
x
x
x
(* = Does not count toward a quorum, P = Phone and/or web, X = Present)
Presiding Officer:
Bas Revet, Chair
1. Opening
The Chair called the meeting to order at 08.30 on June 23, 2014. A quorum was present. Members
approved the agenda. The minutes of the previous meetings and t-cons were approved. The
Secretary reviewed the antitrust rules.
2. Report on Ballots
The Secretary reported that the ballots distributed following the April 2013 meeting of WG-06 had
passed.
BALLOT
APPROVE
CPack 76
26
DISAPPROVE
ABSTAIN
COMMENTS
7
5
3. CPack-76 Ballot Results: Review of the Comments, Disposition of the CPs
The Group reviewed the LB comments and decided on Final Text or other action as shown below:
1508
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
CP#
1203
1324
Title
Assigned
to
PDR Pulse Details in RT Brachy
Session Record
U. Busch
Add a new Value Representation for
URI/URLs
J Philbin
Consideration to Comments
MARCH 2014: U. Busch presented the
VP draft. Approved for LB.
Jan 2014: strengthened definitions,
added facility to record all Control
Points (only End Ctrl points were
recorded before)
JUNE 2014: H Solomon comments were
accepted. The CP will be re-balloted to
allow all DSC members to look at this
significant change.
Disp
ositi
on
FT
Rebal
lot
LB
MARCH 2014: Discussed Version 5.
Discussed and revised the Default
Character Repertoire.
1331
JAN 2014: substantial discussion
whether to make it a Supplement.
Approved for VP
OCT 2013: keep assigned
JUNE 2014: Comments if any were
accepted.
MARCH 2014: Approved changes
Jan 2014: KOD and RH commented that
Treatment Time is not clear in the CP.
Revised.
JUNE 2014: Comments if any were
accepted.
MARCH 2014:WG-16 approved, WG06 reviewed, no comments
Treatment Time in RT Plan
U Busch
1332
Standardization of DIXON Image and
Frame Types
B Revet
1334
Clarify worklist extended negotiation
after Sup 157
D Clunie
JUNE 2014: Comments if any were
accepted.
MARCH 2014: WG-06 reviewed, no
comments
FT
1335
Clarify SR Frame of Reference for
SCOORD3D and TCOORD IODs
D Clunie
JUNE 2014: Comments if any were
accepted.
MARCH 2014: WG-06 reviewed, no
comments
FT
1336
Use LOINC code for Key Image in
Template
D Clunie
JUNE 2014: Comments if any were
accepted.
MARCH 2014: WG-06 reviewed, no
comments
FT
1337
Add Isocenter Position to
MR/PET/Enhanced CT/MR/PET and
D Clunie
FT
FT
1509
FT
FT
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
1338
1339
1340
1341
1343
1344
1346
1347
1348
1349
RT Equipment Correlation to Enhanced
CT
Move Body Substance from Type to
Category for Segmentation
Add various new dates, times, serial
numbers and UIDs for de-identification
Add For Litigation KOS Reason
Add Series Purposes of Reference
Add Patient Photo to Patient
Identification Modules
Clarify Type Requirements In Unified
Worklist
Add Table Information to X-Ray 3D
IODs
Add a new attribute to describe the
direction of a scan relative to the patient
Correct Reference in Retrieval Of Entire
Composite Instances
Link from still picture to video
D Clunie
FT
FT
D Clunie
FT
FT
D Clunie
A Leontiev
R Horn
FT
FT
FT
FT
FT
FT
K
O’Donnell
B Revet
FT
FT
FT
FT
B Revet or
D Clunie
B Revet
FT
FT
JUNE 2014: Already in the 2013
Edition, CP unnecessary-CANCELLED
MARCH 2014: WG-06 reviewed, no
comments
JUNE 2014: See the Toshiba comment:
KOD the text is not fully informative,
only understandable to “insiders”.
Check with author. Remains assigned.
MARCH 2014: WG-06 reviewed, no
comments
JUNE 2014: Combine w/ CP 1352
MARCH 2014: WG-06 reviewed, no
comments
JUNE 2014:
MARCH 2014: Needs cleaning up
Canc
el
JUNE 2014: Cancel, combine with CP
1350 or 1324?
MARCH 2014: Approved for LB
OCT 2013: FHIR Imaging resource
Canc
el
B Revet
1350
Add WADO-RS as a retrieval
mechanism for referenced Instances
J Philbin
1351
Add JSON support to WADO-RS
RetrieveMetadata and STOW-RS
services
Add Series- and Instance-level metadata
retrieval to WADO-RS
J Philbin
1352
J Philbin
On
Hold
AS
VP
Sept
FT
WG-06 decided and voted unanimously to approve, as final text, the CPs as listed above.
4. Voting Package (VP) for June 2014
The CPs listed below have either been approved for the June VP at the April 2014 meeting or have
been readied for this Voting Package, following the April 2014 meeting. The CPs listed below were
reviewed and discussed. The CPs were either approved by unanimous vote for inclusion in the next
Letter Ballot (CPack 77) or were directed for further work (remained “Assigned”) as shown below.
[Legend: LB=approved for next CPack, VP=for next meeting’s voting package, AS=remains
assigned]
1510
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
CP#
1031
Title
Use of OIDs and Non-ASCI Characters
in Codes
Assigned
to
R. Horn
1032
Fix Position Angle Sign Inconsistency in
Mammography Image
K.O’Donnell
1217
Add Extensible SR SOP Class for new
types of Content Item
D. Clunie
1278
Additional cardiac image types for
enhanced CT
D. Clunie
1511
Discussion
JUNE 2014: Will use DICOS tags, will
rename code value. consider the tag
Why are we introducing UC? Why 1023
code values.
On Hold: Discuss when R. Horn is
present.
MARCH 2014: SNOMED-larger
character limit. 16 character limit is a
problem: discussed the failure modes
resulting from this. KOD noted that it
would be helpful to receive feedback
from implementers. D Clunie
expressed concerns about this direction.
It was noted that so far codes are
alphanumeric
JUNE 2014: revisions in CP made by J
Keyes were reviewed by WG-06. No
objections to LB
JUNE 2014: Discussion: SR was
created for rendering but was given up
for rendering and intended for machine
consumption. SCOORD3D was a
defined and was added. Let’s wait till
next defined need or show increased
needs. Continue to discuss when D
Clunie present.
AUGUST 2013: should there also be a
Supplement developed instead of a CP?
Discussed what warning might need to
be given if content is not understood.
The question was posed whether this
should be pursued. It was noted that SR
cannot handle many
JUNE 2013 discussion: Postponed
discussion when D Clunie and R Horn
are present in Aug
++++++++++++++++++++++++++++
++
content such as vectors (e.g. BP
waveform.) Members were concerned
of safety but acknowledged the value of
this CP. Another value is the
advancement of SR in general. This CP
could add contents of the Evidence
Document. It was suggested to include
a few illustrations.
JUNE 2014: brief discussion of
appearent redundancy in text.
Dispo
sition
Remai
ns AS
LB
Remai
ns AS
LB
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
1342
1354
1355
1356
1359
1360
1363
1365
Extend Image Type for Breast X-Ray
Image IODs
Move requirement use isocenter 3DXray
J. Keyes
Make X-Ray RDSR event level device
conditional
Add Content Qualification to all
compsite IODs
Clarify restrictions on icon images inside
image IODs
D. Clunie
Approved for LB
JUNE 2014: KOD will add revisions
C.8-74c . Will e-mail Janet.
JUNE 2014: B. Revet will check the
current Standard and synchronize and
update both. Bas will write CP as
needed.
JUNE 2014: reviewed approved for LB
D. Clunie
JUNE 2014: reviewed approved for LB
LB
B.Revet
LB
Add Performed Procedure Step
Comment to Module Definition
Add SearchForPatient service to QIDORS
U. Busch
JUNE 2014: Purpose of CP was
discussed: clean-up and organize better.
Also discussed the icon resolution 64 is
too small. Made revisions.
JUNE 2014: reviewed approved for LB
CAN
CEL
Support of more than 16 bit in point
index lists
D. Clunie
JUNE 2014: caveat: if PT does not have
study, it will not find PT. A Leontiev
considered this a new service. D Clunie
suggested this can be done in QIDO.
DICOM decided in the past that study
level search is preferable to PT level
search. This is in C-FIND. Rational is
not sufficient, it creates two ways to do
the same thing. If more arguments in
the future, authors should bring it up.
JUNE 2014: this is the part 2 of
correcting an error in surface
segmentation. This is an important
topic as MR DTI is starting. This is
strengthening and clarifying the
Standard. WG-06 noted several items
(some editorial) including retiring some
attributes and marking the Standards
that way. Only the long attributes will
remain. D Clunie will correct those for
future review.
B.Revet
J. Philbin
LB
LB
LB
LB
LB
5. Letter Ballot CPack-77
WG-06 decided unanimously to submit for legal review and thereafter circulate in a Letter Ballot,
for vote by the DICOM Standards Committee, the Correction Proposals (CPs) listed below:
CP#
Letter Ballot to Be Issued CPack-77
Title
1512
Assigned
to
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
1032
1278
1324
Fix Position Angle Sign Inconsistency in
Mammography Image
K.O’Donnell
Additional cardiac image types for enhanced CT
D. Clunie
Add a new Value Representation for URI/URLs
J Philbin
JUNE 2014: revisions in CP
made by J Keyes were
reviewed by WG-06. No
objections to LB
JUNE 2014: brief discussion
of appearent redundancy in
text. Approved for LB
JUNE 2014: H Solomon
comments were accepted. The
CP will be reballoted to allow
all DSC members to look at
this significant change.
LB
LB
Rebal
lot
LB
MARCH 2014: Discussed
Version 5. Discussed and
revised the Default Character
Repertoire.
1342
Extend Image Type for Breast X-Ray Image IODs
J. Keyes
1354
Move requirement use isocenter 3D-Xray
B.Revet
1355
Make X-Ray RDSR event level device conditional
D. Clunie
1356
Add Content Qualification to all compsite IODs
D. Clunie
1359
Clarify restrictions on icon images inside image
IODs
B.Revet
1360
Add Performed Procedure Step Comment to
Module Definition
Support of more than 16 bit in point index lists
U. Busch
1365
D. Clunie
1513
JAN 2014: substantial
discussion whether to make it
a Supplement. Approved for
VP
OCT 2013: keep assigned
JUNE 2014: KOD will add
revisions C.8-74c . Will email Janet.
JUNE 2014: B. Revet will
check the current Standard and
synchronize and update both.
Bas will write CP as needed.
JUNE 2014: reviewed
approved for LB
JUNE 2014: reviewed
approved for LB
JUNE 2014: Purpose of CP
was discussed: clean-up and
organize better. Also
discussed the icon resolution
64 is too small. Made
revisions.
JUNE 2014: reviewed
approved for LB
JUNE 2014: this is the part 2
of correcting an error in
surface segmentation. This is
an important topic as MR DTI
is starting. This is
strengthening and clarifying
the Standard. WG-06 noted
several items (some editorial)
including retiring some
attributes and marking the
LB
LB
LB
LB
LB
LB
LB
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
Standards that way. Only the
long attributes will remain. D
Clunie will correct those for
future review.
6. Assigned CPs
(CPs in the “Assigned” meeting folder and other previously assigned CPs that were
introduced for consideration for the next Voting Package.)
[Legend: LB=approved for next CPack, VP=for next meeting’s voting package, AS=remains
assigned]
CP#
Title
1366
Correction of Relationships in Planar and
Volumetric ROI Templates
Correct errors in Colon CAD SR IOD
Template Figures
Space should be listed in DS and IS VR
character repertoire
Relax device identifier constraint in x-ray
irradiation event per CP 1065 undone by
CP 1077
Conformance Statement Example is
Missing Private Creator Value
Length of TM permitted is too long
Add NCI Thesaurus as Coding Scheme
Add Alzheimers Disease PET
Radiotracers
Add Zr 89 Monocolonal Antibody PET
Radiotracers
Add Various PET Radionuclides and
Radiotracers
Add Individual Long Bone Concepts to
Anatomic Region and Body Part
Examined
Use SNOMED Code for
Radiopharmaceutical
Add Anatomic Codes for Fetal Biometry
and Pelvic Ultrasound
Add Definitions for all DCM Controlled
Terms or Replace with Terms from
External Lexicon
Various NM Radionuclides are not list in
CID 18. Add them, using DCM codes if
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
Assigned to
Discussion
Disposit
ion
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
D Clunie
D Clunie
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
VP
VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
1514
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
necessary for those not in SNOMED or
UMLS.
Add term "Flat Filter" for Filter Types
used in Proj. X-Ray
Correct element number in reference to
SOP Instance UID
Add external resource URI to MWL
Update values in CID 3722
Add ‘Measurement Laterality’ to General
Ophthalmic Refractive Measurements
Module
Addition of Measurement Report Root
Template for Planar and Volumetric ROIs
Addition of Quantity Descriptors to Real
World Value Maps
Add Real World Value Map Reference to
Measurements
Factor Common Descriptions Out of
Image Library Entries
Generalize Concepts in Abstract Multidimensional Image Model Component
Semantics
Addition of Quantity Descriptors for
Perfusion and Tracer Kinetic Modelling
Addition of Quantity Descriptors and
Measurements for PET
Correct Tag Numbers For BLD Adjusted
Positions
Add Radioactive Source Model ID to RT
Brachy Application Setups Module
Extend RT Structure Set ROI Color
Clarify Dose Value units for DVH in RT
Dose
Multiplicity Structure Classification Code
Add FOR Module to RTSS IOD
Add Effective Wedge Angle
Assign WADO-WS namespace and
schema
Clarify meaning of PARTIAL in X-Ray
RDSR
B Revet
JUNE 2014: Approved for VP
VP
B Revet
JUNE 2014: Approved for VP
VP
A Leontiev
A Leontiev
R Horn
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
VP
VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
U Busch
JUNE 2014: Approved for VP
VP
U Busch
JUNE 2014: Approved for VP
VP
U Busch
U Busch
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
VP
VP
U Busch
U Busch
U Busch
J Philbin
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
VP
VP
VP
VP
B Revet
JUNE 2014: Approved for VP
VP
7. VP (Voting Package) for Sept. 2014
Based on discussions and decisions as recorded in Tables 3, 4 and 6, the Voting Package for
the next meeting includes: (CPs are copied from previous tables for convenient reference.)
VP=for next meeting’s voting package
CP#
Title
Assigned
to
1515
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
1350
Add WADO-RS as a retrieval mechanism for
referenced Instances
J Philbin
1366
Correction of Relationships in Planar and
Volumetric ROI Templates
Correct errors in Colon CAD SR IOD Template
Figures
Space should be listed in DS and IS VR
character repertoire
Relax device identifier constraint in x-ray
irradiation event per CP 1065 undone by CP
1077
Conformance Statement Example is Missing
Private Creator Value
Length of TM permitted is too long
Add NCI Thesaurus as Coding Scheme
Add Alzheimers Disease PET Radiotracers
Add Zr 89 Monocolonal Antibody PET
Radiotracers
Add Various PET Radionuclides and
Radiotracers
Add Individual Long Bone Concepts to
Anatomic Region and Body Part Examined
Use SNOMED Code for Radiopharmaceutical
Add Anatomic Codes for Fetal Biometry and
Pelvic Ultrasound
Add Definitions for all DCM Controlled Terms
or Replace with Terms from External Lexicon
Various NM Radionuclides are not list in CID
18. Add them, using DCM codes if necessary
for those not in SNOMED or UMLS.
Add term "Flat Filter" for Filter Types used in
Proj. X-Ray
Correct element number in reference to SOP
Instance UID
Add external resource URI to MWL
Update values in CID 3722
Add ‘Measurement Laterality’ to General
Ophthalmic Refractive Measurements Module
Addition of Measurement Report Root Template
for Planar and Volumetric ROIs
Addition of Quantity Descriptors to Real World
Value Maps
Add Real World Value Map Reference to
Measurements
Factor Common Descriptions Out of Image
Library Entries
Generalize Concepts in Abstract Multidimensional Image Model Component
Semantics
Addition of Quantity Descriptors for Perfusion
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
VP
Sept
D Clunie
JUNE 2014: Was in CP-76 LB.
Discussion: combine w/ CP 1352
MARCH 2014: WG-06 reviewed,
no comments
JUNE 2014: Approved for VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
D Clunie
D Clunie
D Clunie
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
VP
VP
VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
D Clunie
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
B Revet
JUNE 2014: Approved for VP
VP
B Revet
JUNE 2014: Approved for VP
VP
A Leontiev
A Leontiev
R Horn
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
VP
VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
D Clunie
JUNE 2014: Approved for VP
VP
1516
VP
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
and Tracer Kinetic Modelling
Addition of Quantity Descriptors and
Measurements for PET
Correct Tag Numbers For BLD Adjusted
Positions
Add Radioactive Source Model ID to RT
Brachy Application Setups Module
Extend RT Structure Set ROI Color
Clarify Dose Value units for DVH in RT Dose
Multiplicity Structure Classification Code
Add FOR Module to RTSS IOD
Add Effective Wedge Angle
Assign WADO-WS namespace and schema
Clarify meaning of PARTIAL in X-Ray RDSR
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
D Clunie
JUNE 2014: Approved for VP
VP
U Busch
JUNE 2014: Approved for VP
VP
U Busch
JUNE 2014: Approved for VP
VP
U Busch
U Busch
U Busch
U Busch
U Busch
J Philbin
B Revet
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
JUNE 2014: Approved for VP
VP
VP
VP
VP
VP
VP
VP
8. CPs discussed that remain “Assigned”
Copied from Tables 3, 4 and 6 for convenient reference.
AS=assigned / remains assigned
CP#
Title
1031
Use of OIDs and Non-ASCI Characters in Codes
1217
Add Extensible SR SOP Class for new types of
Content Item
Assigned
to
Discussion
R. Horn
JUNE 2014: Will use DICOS
tags, will rename code value.
consider the tag
Why are we introducing UC?
Why 1023 code values.
On Hold: Discuss when R. Horn
is present.
D. Clunie
1517
MARCH 2014: SNOMEDlarger character limit. 16
character limit is a problem:
discussed the failure modes
resulting from this. KOD noted
that it would be helpful to
receive feedback from
implementers. D Clunie
expressed concerns about this
direction. It was noted that so
far codes are alphanumeric
JUNE 2014: Discussion: SR
was created for rendering but
was given up for rendering and
intended for machine
consumption. SCOORD3D was
a defined and was added. Let’s
Disposit
ion
Rem
ains
AS
Rem
ains
AS
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
wait till next defined need or
show increased needs.
Continue to discuss when D
Clunie present.
1349
Link from still picture to video
B Revet
AUGUST 2013: should there
also be a Supplement developed
instead of a CP? Discussed what
warning might need to be given
if content is not understood.
The question was posed
whether this should be pursued.
It was noted that SR cannot
handle many
JUNE 2013 discussion:
Postponed discussion when D
Clunie and R Horn are present
in Aug
+++++++++++++++++++++++
+++++++
content such as vectors (e.g. BP
waveform.) Members were
concerned of safety but
acknowledged the value of this
CP. Another value is the
advancement of SR in general.
This CP could add contents of
the Evidence Document. It was
suggested to include a few
illustrations.
JUNE 2014: See the Toshiba
comment: KOD the text is not
fully informative, only
understandable to “insiders”.
Check with author. Remains
assigned.
MARCH 2014: WG-06
reviewed, no comments
On
Hold
AS
9. New CPs Submitted that were assigned a CP Number and an Editor
The following new change proposals were received and posted in the “New” subdirectory of the
meeting folder. CP numbers shown were assigned by WG-06. They will be placed in the
“Assigned” folder of the next WG-06 meeting:
CP#
assign
ed
1403
New Correction Proposals -Title
Clarify use of DIMSE service Status
codes
Assigned
to
A Leontiev
1518
Discussion
File ID
CP_AL03_service_status_
codes
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
1404
Correct Condition on Exposure in
Projection X-Ray RDSR
D Clunie
Replace BI-RADs codes that have
SNOMED equivalents
D Clunie
1406
Add codes for tumor sites
D Clunie
1407
Add diffusion tractography related
sites
D Clunie
1408
Add NeuroNames as Coding Scheme
D Clunie
1409
Add Conformance Storage Media
Categories
D Clunie
1410
Clarify Lossy Image Compression
Ratio
D Clunie
1411
Reserved Group for Known Safe
Private Elements
D Clunie
1412
LOINC code updates in SR templates
and context groups
D Clunie
1413
1414
Add UCUM license terms
Update PS3.1 definitions
A Leontiev
A Leontiev
1415
Update PS3.1 front matter
A Leontiev
Update to use SNOMED codes
Clarify use and declaration of private
mapping resource
A Leontiev
1418
Add UDI (Universal Device ID) to
objects
1419
Correct Sequence Level of Procedure
Step Cancellation DateTime
K
O’Donnell
U Busch
1420
Support for Multi Slab Block in Ion
Plan
U Busch
1421
Support for Mean Excitation Energy
In Structure Physical Properties
U Busch
1405
1416
1417
1422
D Clunie
Correct High Bit value description in various
IODs
1519
cp_dac254_rdsrxraye
xposurecondition
cp_dac255_replacebir
adswithsnomed2
cp_dac256_tumorsite
s
cp_dac257_tractograp
hysites
cp_dac258_addNeuro
NamesCodingScheme
cp_dac259_conforma
ncestoragemediacateg
ories
cp_dac260_lossyimag
ecompressionratio
cp_dac261_reservedg
roupforknownsafepri
vateelements
cp_dac262_moreloinc
odes
CP_HS76_ucum
CP_HS77_Part1defin
itions
CP_HS78_Part1front
Matter
CP_HS79_SNOMED
cp_jr04_private_map
ping_resource
CP_KOD_SupportUn
iversalDeviceID-UDI
cp_RT59_CorrectSeq
uenceLevelOfProced
ureStepCancellationD
ateTime_01
cp_RT61_SupportFor
MultiSlabBlockInIon
Plan_01
cp_RT63_SupportFor
MeanExcitationEnerg
yInStructurePhysical
Properties_01
cp_dac263_highbit
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
10. New CPs Submitted– Rejected
None
Note: The comprehensive list of all CPs (including all FT and cancelled) is posted in this
meeting’s folder.
11. CPs on Hold
CP#
Title
Assigned
to
375
Correct CID 4017
K O’Donnell
1071
Additions to various CIDs of
Supplement 78
B. Revet
1302
Correct example of Chinese encoding
A Leontiev
Discussion
B Revet (BR) will refer to WG-22 for
SNOMED codes.
Need SNOMED codes, CID # and UIDs
Waiting for SNOMED Codes
Rob and Andrei will investigate negative
ballot vote from China
OCT 2013: Discussed negative by China
in CPack 73. Discussed returning to
ASCII.
Noted that Part 5 does not call for =.
ACTION: R. Horn to check
FT
Passed
, On
hold
FT
Passed
, On
hold
On
Hold
AS
AUG 2013: more editorial revisions
1349
Link from still picture to video
B Revet
1520
JUNE 2013: Discussed the carat issue and
added to CP draft.
JUNE 2014: See the Toshiba comment:
KOD the text is not fully informative,
only understandable to “insiders”. Check
with author, Florian Knicker. Remains
assigned.
MARCH 2014: WG-06 reviewed, no
comments
On
Hold
AS
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
12. Other ACTION Items and Other DiscussionsAction Items relative to CPs:
CP#
RT55
Title
Assigned
to
cp_RT55_IncludeM No number
otionModePermissio given, no
assignment
nInRTToleranceTabl
e_02.doc
Discussion
Discuss with WG-21
13. List of all remaining assigned CPs at the end of this WG-06 meeting
(AS=assigned)
CP#
Title
145
Curve Data Value Representation
Clarification
Clarify NM detector start angle usage
235
296
430
471
591
596
597
757
802
804
811
812
833
836
838
Eliminate Duplicate Terms and
Provide Missing Definitions
Additions to PS 3.16 for Cardiac Cath
SR
Add Common Finding Template
Attribute Identifier List for Errors in
Sequence Attributes
Add Request and Schedule
Information to Results and MPPS
Instance Availability Notification
Structure
Add RTSS ROI Feature UID
Incorporate Fixes on 702 and 706
Indicator for Cone Beam CT
Note for Forwarders Regarding SCPassigned
Instance UIDs during N-CREATE
Clarification that Pixel Padding Value
Is a Raw
Value before Any Transformations
Transfer Syntax Availability and
Selection for Q/R
Clarify Usage of Attributes for
Normalized IODs
Consistent Naming of Error Code
Tables
Assigned
to
D. Clunie
Discussion
1319
AS
J.
Pohlhammer
H. Solomon
AS
H. Solomon
AS
H. Solomon
H. Solomon
AS
AS
R. Horn
AS
H. Solomon
AS
H. Solomon
D. Clunie
K. O’Donnell
D. Harvey
AS
AS
AS
AS
D. Harvey
AS
R. Horn
AS
K. O’Donnell
AS
K. O’Donnell
AS
1521
AS
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
934
941
991
992
1013
1019
1030
1031
Fix Inconsistency of C-FIND Only
Number of Patient Related XXX
Attributes
More Clarification of Instance
References
Clarify Handling of Private Data in
the Retrieve Without Bulk Data
Service
Clarify Allowable Length Values for
Certain PDUs
RT Ion Beams Recording
Clarifications
Add Body Part at the Study Level
Re-factor Common Attributes for
Enhanced Images
Use of OIDs and Non-ASCI
Characters in Codes
D. Harvey
AS
D. Clunie
AS
R. Horn
AS
K. O’
Donnell
WG-07
AS
K O’Donnell
B. Revet
AS
AS
R. Horn
AS
JUNE 2014: Will use DICOS tags, will
rename code value. consider the tag
Why are we introducing UC? Why 1023
code values.
On Hold: Discuss when R. Horn is
present.
Rema
ins
AS
MARCH 2014: SNOMED-larger
character limit. 16 character limit is a
problem: discussed the failure modes
resulting from this. KOD noted that it
would be helpful to receive feedback from
implementers. D Clunie expressed
concerns about this direction. It was
noted that so far codes are alphanumeric
1066
1086
1106
1115
1126
1127
1163
1180
1189
1196
1207
Encoding of Attributes with Value
Length > 64KiB with Explicit VR
New DICOMDIR ZIP File Extension
Assign a Namespace for Audit
Schema Elements
Add Dose Reference Point Codes for
CR/DR
Corrections LOINC Codes Sup78
Add Fields for Organ Dose to Dose
SR
Conformance for Application Hosting
Use LOINC_Short Name
Add usage of Temporal Position Time
Offset to Per Frame content Macro as
needed for Enhanced MR and
Enhanced CT objects.
Add phantom-specific Total DLP
Values to allow for Head and Body in
same RDSR scope of accumulation
R. Horn
AS
R. Horn
R. Horn
AS
AS
K. O’Donnell
AS
B. Revet
K. O’Donnell
AS
AS
Change Multi-frame Dimension
module usage to “User Option” for
H Solomon
H. Solomon
W. Corbijn
Was in Aug 12 VP
AS
AS
AS
D. Clunie
Need to be discussed in WG-21
AS
B. Revet
Tom Probasco-WG-06 needs more
information and examples for when it is
AS
1522
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
1208
IVOCT IOD
Clarify the unambiguous use of
Private Creator Data
B. Revet
1217 Add Extensible SR SOP Class for new D. Clunie
types of Content Item
meaningful [BR to contact TP]
B Revet clarified that the intent of the CP
is to prevent the same identifier issued for
different blocks. It was suggested to state
that the “same privet creator shall not be
used for different blocks.”
ACTION: B Revet will reword it to
include more normative text and include
examples in the notes. Also make it clear
that there is no implication in the order of
the blocks.
JUNE 2014: Discussion: SR was created
for rendering but was given up for
rendering and intended for machine
consumption. SCOORD3D was a defined
and was added. Let’s wait till next
defined need or show increased needs.
Continue to discuss when D Clunie
present.
AS
Rema
ins
AS
AUGUST 2013: should there also be a
Supplement developed instead of a CP?
Discussed what warning might need to be
given if content is not understood. The
question was posed whether this should
be pursued. It was noted that SR cannot
handle many
JUNE 2013 discussion: Postponed
discussion when D Clunie and R Horn are
present in Aug
++++++++++++++++++++++++++++++
content such as vectors (e.g. BP
waveform.) Members were concerned of
safety but acknowledged the value of this
CP. Another value is the advancement of
SR in general. This CP could add
contents of the Evidence Document. It
was suggested to include a few
illustrations.
1224
1225
1226
1227
1228
1241
1288
Add Expiration Date to UPS
Add Procedure Step Completion
Codes to UPS
Add more specific post-processing
codes to CID 9231
Fix Estimated Dose Saving attribute
Correct inconsistency between Table
C.30.3-1 and Table CC.2.5-3 of UPS
Restrict claming UPS Work items AS
to another AE
K O’Donnell
K. O’Donnell
AS
AS
K. O’Donnell
AS
K. O’Donnell
K O’Donnell
AS
AS
K O’Donnell
AS
Add templates and code definitions for
QAPV support
U Busch
AS
1523
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
1302
Correct example of Chinese encoding
A Leontiev
Rob and Andrei will investigate negative
ballot vote from China
On
Hold
OCT 2013: Discussed negative by China
in CPack 73. Discussed returning to
ASCII.
Noted that Part 5 does not call for =.
ACTION: R. Horn to check
AS
AUG 2013: more editorial revisions
1319
Frame Of Reference Reliability
U Busch
JUNE 2013: Discussed the carat issue and
added to CP draft.
MARCH 2014:The related White Paper
was posted. Reviewed the CP ( version
07) and conducted extensive discussion,
which will continue. Concluded that there
is a need for analyzing and solving
specific use cases. Reviewed the
attributes. Noted that these type of
changes, as a matter of policy, are not
being added to existing objects.
Jan 2014: discussed the Frame of
Reference White paper
OCT 2013: v03 reviewed. WG-02&27
White Paper to be reviewed
AS
August 2013: How to record whether
FOR is correct. KOD noted that all
changes should be a different FOP with
mapping
1320
A Leontiev
AS
1321
1322
1323
1345
Update to CID 3411 Intracoronary
Devices
Add Telecom Addresses
Add Consulting Physician
Clarify Audit Code Meanings
Add Related UPS Sequence
A Leon-tiev
A Leon-tiev
R Horn
K O’Donnell
AS
AS
AS
AS
1349
Link from still picture to video
B Revet
1353
1357
1358
Secure Transport Connection Profile
should allow higher TLS versions
Allow Unicode Katakana in alphabetic
name group
Correct tag mismatch between Implant
Template Group Module and
dictionary
Clarify Codes
JAN 2014: Lengthy discussion. This CP
may be the solution to existing problems.
JUNE 2014: See the Toshiba comment:
KOD the text is not fully informative,
only understandable to “insiders”. Check
with author, Florian Knicker. Remains
assigned.
MARCH 2014: WG-06 reviewed, no
comments
On
Hold
AS
R Horn
AS
A Leontiev
AS
A Leontiev
AS
1524
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
1361
1362
1364
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
Correct ParticipantObjectDescription
in DICOM audit message
Correct AuditSourceIdentification in
DICOM audit message
Minor corrections to WADO-RS and
STOW-RS
Add UI Value Representation to
Hanging Protocol Selector attributes
Clarify use of DIMSE service Status
codes
Correct Condition on Exposure in
Projection X-Ray RDSR
Replace BI-RADs codes that have
SNOMED equivalents
Add codes for tumor sites
Add diffusion tractography related
sites
Add NeuroNames as Coding Scheme
Add Conformance Storage Media
Categories
Clarify Lossy Image Compression
Ratio
Reserved Group for Known Safe
Private Elements
LOINC code updates in SR templates
and context groups
Add UCUM license terms
Update PS3.1 definitions
Update PS3.1 front matter
Update to use SNOMED codes
Clarify use and declaration of private
mapping resource
Add UDI (Universal Device ID) to
objects
R Horn
AS
R Horn
AS
J Philbin
AS
J Philbin
AS
A Leontiev
JUNE 2014: New, received CP number
AS
D Clunie
JUNE 2014: New, received CP number
AS
D Clunie
JUNE 2014: New, received CP number
AS
D Clunie
D Clunie
JUNE 2014: New, received CP number
JUNE 2014: New, received CP number
AS
AS
D Clunie
D Clunie
JUNE 2014: New, received CP number
JUNE 2014: New, received CP number
AS
AS
D Clunie
JUNE 2014: New, received CP number
AS
D Clunie
JUNE 2014: New, received CP number
AS
D Clunie
JUNE 2014: New, received CP number
AS
A Leontiev
A Leontiev
A Leontiev
A Leontiev
JUNE 2014: New, received CP number
JUNE 2014: New, received CP number
JUNE 2014: New, received CP number
JUNE 2014: New, received CP number
JUNE 2014: New, received CP number
AS
AS
AS
AS
AS
JUNE 2014: New, received CP number
AS
JUNE 2014: New, received CP number
AS
JUNE 2014: New, received CP number
AS
JUNE 2014: New, received CP number
AS
JUNE 2014: New, received CP number
AS
D Clunie
K
O’Donnell
U Busch
Correct Sequence Level of Procedure
Step Cancellation DateTime
Support for Multi Slab Block in Ion
U Busch
Plan
Support for Mean Excitation Energy
U Busch
In Structure Physical Properties
Correct High Bit value description in various
IODs
14. Supplement 147 – Second Generation Radiotherapy {WI 2007-06-B}
This was a continuation of the line-by-line reading for Public Comment. C. Schadt continued to present
< sup147_42 - Reading 2014-06-26 - 3 Thur Start.doc> (posted in the mtg folder.
1525
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
The reading started at “Treatment RT Radiation Set Relation Sequence” (30xx,08FA) in Table
C.AA.A6-1 and ended at “Purpose of Alternate Segmented Property Type Code Sequence (30xx,134F)”
in Table C.AA.B2-1.
The following items have been discussed:
 The referencing of additional SOP Instances from within the RT Course including their approval
state was reviewed again in order to discuss a diagram to illustrate the concept. Enhancements
were proposed and will be worked in accordingly.
 The RT Prescription Module contains a two-level approach for prescriptions, but it is also
possible to include prescription “orphans” that are not part of the two-level hierarchy. The
question was what the intention of this is and whether any other reference would be necessary.
The discussion on this topic was deferred and will be discussed at the next WG-07 meeting.
The draft was annotated during the discussion and at the end of the sessions posted as sup147_42 Reading 2014-06-26 - 6 Fri End.doc.
The Supplement will return to WG-06 for continued reading for Public Comment.
15. Supplement 155 –Imaging Reports using HL7 Clinical Document Architecture {WI2010-04-D}
For the first session, WG-08 Co-Chair H. Solomon posted <Sup155_2014-06-20.docx> and <Sup 155
Intro.pptx> for this review session. Using the Power Point presentation he reviewed for WG-06 the
goals of the Supplement, and the document structure. WG-08 members T. Schmidt, C. Melo, L.
Holliman, as well as WG-20 Co-Chair H. Koenig joined this session and discussion.
H. Solomon noted that a detailed line-by-line review of the Supplement would require 6-8 hours. It was
decided by WG-06 that, given the nature of this supplement, an expedited line-by-line review (about 2
hours) should be suitable to determine suitability for Public Comment with illustrating all layers of
information with one example.
The review continued on Wednesday with the presentation of <Sup155_2014-06-25.docx>, which was
annotated during the discussion. Additional Open Issues were identified.
D Clunie will check and complete the list of data elements for dose reporting.
There was a discussion of the merits of using “Business Names” in Sup 155, which are defined in the
context of the HL7 greenCDA specification. greenCDA was seen by some members as problematic, as
it defines using an alternate XML schema (which was not the intent in Sup 155). It was suggested to not
reference greenCDA, and to not use “Business Names” as the name of the organizing construct. WG-08
will take that under advisement
WG-20 currently plans to distribute Sup 155 to HL7 for comment only.
1526
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
There was a discussion reviewing the previously decided process, format and publication of this
Supplement. It was reiterated that the primary users and audience for this Supplement are those that
develop radiology reporting applications. The current draft is cast as a revision/replacement of Part 20,
as suggested at the March WG-06 meeting; this needs to be confirmed during the preparation for Public
Comment.
Next steps: it was decided that a line-by-line review will be conducted, after all, before approval for
Public Comment. To get started prior to the next WG-06 meeting a 2-hour t-con will be scheduled, in
advance of the next WG-06 meeting (first week of August) to start the line-by-line reading for Public
Comment.
Ending Document: The document, as revised subsequent to the discussion, was saved in the meeting
folder as << Sup155_2014-06-25.docx>
The Supplement will return to WG-06.
16. Supplement 156 – Multi-Dimensional Presentation State {WI 2008-04-C}
This was a continued reading for Public Comment.
J. Whitby reviewed the comments received in the Public Comment cycle (Siemens, Philips, Toshiba,
Brainlab, Hassadah University Hospitals.). The WG-11 responses have been developed and presented to
WG-06; they were also posted in the ‘Sups’ directory of the meeting folder.
J. Whitby of WG-11 presented the draft Supplement to WG-06: < sup156_pc_2014-06-24-1330>
(posted in mtg folder.) He was supported in his presentation by J. Luszcz, A. Klingler and E. Seeberger.
There was a significant discussion of the draft in both sessions.
A line-by-line review reached the beginning of C.11.x8 (line 455 in the last posted draft version).
WG-06 directed WG-11 to make the following changes:

Add new Context Groups for View Description and View Modifier rather than specify multiple
baseline CIDS

Remove term ‘slicing’ in favor of using MPR consistently

Replace Date and Time attributes with Datetime

Clarify use of Rendered Image Reference Sequence

Clarify difference between Display Collection and Sequence Collection
1527
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014

Remove SOP Class specific rules in volume definition

Use Common Instance Reference Module to simplify references throughout

Add definitions for MPR Enumerated Values

Clarify use of Annotation Clipping
An end-of-session snapshot of the marked-up supplement was posted as <
sup156_PlanarMPR_20140626_1530.docx>.
The Supplement was approved for Public Comment.
17. Supplement 169, Simplified Adult Echocardiography Structured Report [WI-2012-11-A]
K. O’Donnell, Project Leader/Editor in WG-12 presented < sup169_06a-EchoSR.docx> which was
posted in the meeting folder. This was a continued reading for approval for Public Comment. WG-12
members E. Canfield, J. Luszcz, and R. Knipe were assisting.
K. O’Donnell emphasized that this is the first time a multicolumn TID table is used. An open issue was
added to explain this table. He described the pre- and post-coordinated templates. The wall motion
template is to remain in its own category.
Lengthy discussion of the le TID 3QZ took place. The draft places the value of a private code in the
Concept Name rather than in the value field. Added an open issue for the use of private codes for
Concept Names.
The annotated document was posted at the end of the session as sup169_06c-EchoSR.docx.
The line-by-line reading was completed and the Supplement was approved for Public Comment with
revisions decided during the review.
18. Supplement 170, Server Options for RESTful Services [WI-2013-12-C]
This was a review of the Public Comments and a line-by-line review for Letter Ballot.
The Editor, J. Whitby, presented the draft Supplement. WG-27 members J. Philbin and K. O;Donnell
assisted. The document was posted as < sup170_ServerOptions_LB_02.docx>.
The Philips comments from the Public Comment cycle were reviewed and accepted. The changes made
in the draft were reviewed, a line-by-line review was completed.
The Group unanimously approved the publication for Letter Ballot.
1528
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
19. Supplement 171 RESTful Unified Procedure and Workflow Step (RS UPS) [WI-2013-08-B]
This was a continued reading for Public Comment. The Editor, J. Whitby, presented the draft
Supplement. WG-27 members J. Philbin and K. O;Donnell assisted. The document was posted as <
sup171_fr_UPS-RS_06c.docx>. For today’s reading the document was renamed to < sup171_fr_UPSRS_07.docx>; J. Whitby presented the latter, WG-06 discussed it. J. Whitby made revisions and notes
during the discussion.
The Open Issues were reviewed:
 Possible complications for systems that support both REST and DIMSE services
 The need for a user-agent to be able to have multiple filtered subscriptions
The Group discussed D. Clunie’s suggestion to take into account that Part 4 is based on Part 7, which in
turn is based on Part 8; this supplement should define Part 7 behavior. Based on the discussion it was
decided to include in this supplement the RESTful version of Part 7.
It was noted that this supplement should mirror UPS in the current Part 4; the purpose is not to change
the Current Part 4. ReferenceRequestSequence was an example for the above. All items copied from
Part 4 should be referenced.
J. Philbin noted that D. Clunie’s comments will be very helpful.
J. Whitby started the second discussion-session presenting <sup171_fr_UPS-RS_08.docx>
Additional discussions included:
 The need for a description of the interaction between REST and DIMSE services
 The conclusion that UPS REST and DIMSE services need to be more tightly aligned than other
REST/DIMSE service pairs (e.g. QIDO and C-FIND)
At the conclusion of the session it was decided that the Part 7 web services will not be part of this
supplement; rather, may be added to the Part 18 rewrite. Further, the following additions and revisions
will be made by the Editor and will be circulated prior to issuing the draft for Public Comment:
 Moving event reports to a new message
 Adding a new well known UID for file subscription
 Clarifying the open issues
The draft with the revisions made was re-posted as < sup171_PC_change_tracking.docx>. With the
foregoing conditions the Supplement was approved for Public Comments.
20. Supplement 172, Quantitative Parametric Map Storage [WI-2014-04-B]
1529
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014
D. Clunie is the Editor of this Supplement. He presented < sup_parametricmap_01.pdf>, which was
posted in the meeting folder. This was the First Reading of the Supplement.
Scope and Field of Application
This Supplement defines use-cases, image IODs and SOP Classes for storage of information related to
quantitative parametric maps.
Parametric maps include quantitative derived images computed from acquired images, whether they be
used for clinical, clinical trial or basic research purposes. DICOM objects are needed so that they can be
stored in the PACS and wherever possible visualized in conjunction with images for review, and
preserve patient (or research subject) identification, management, and acquisition and processing
technique information.
Parametric maps are encoded as images just like any other. The distinguishing characteristic of a
"parametric map" is that each pixel value has a "meaning" in the real world, and the name "parametric"
alludes to the meaning being the parameter of something, suchas a pharmacological model. In general,
the term "parametric map" is loosely used to referred to any derived image whose pixel valueshave a
quantitative meaning, as opposed to acquired images, whose pixels values may or may not have
meaning (e.g., CT HU versus arbitrary MR signal intensity), or derived images whose pixel values are
dimensionless.
Examples of parametric maps include
 parameters of pharmacokinetic models, such as Ktrans of the Tofts model used in DCE-MRI
 regional cerebral blood volume (RCBV) or flow (RCBF) used in perfusion CT
 normalized values based on body size, such as SUVbw used in PET
 diffusion parameters such as Apparent Diffusion Coefficient (ADC) used in MR DWI
Some of these applications, such as SUV and ADC, have been in widespread use already, and use
ordinary modality-specific derived image IODs for encoding, with quite satisfactory (interoperable)
results in most cases, and it is not the purpose of this Supplement to replace that common usage.
Rather, the goals are to define:
 additional attributes, modules, acquisition context, code sets and scaling functions that may
optionally used to extend existing image IODs
 a new IODs to address the need for encoding some parametric maps with floating point "pixels"
 the basic encoding mechanism changes needed to support floating point "pixels"
Floating point "pixels" are necessary in some cases for subsequent calculations and to prevent the
accumulation of rounding and quantization errors, as well as to provide a full fidelity record of the work
performed. In many cases, scientific processing applications have been reluctant to sacrifice
intermediate precision between processing steps, and have avoided the use of the DICOM Standard as a
consequence.
The IOD defined in this supplement uses the enhanced multi-frame encoding.
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Working Group Six (Base Standard)
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June 23-27, 2014
D. Clunie reviewed the Open and Closed Issues and reviewed the Supplement for WG-06, line-by-line.
The Supplement was approved for Public Comment. D. Clunie will produce a Word-format version as
well to go with the pdf.
The group discussed the distribution of the document for public comments.
This is a significant supplement as the scope of DICOM is being extended.
.
There are groups outside of the DICOM Community for which this Supplement is of interest.
These stakeholders also need to be reached and Public Comments invited. As these groups are
not familiar with the DIOCM process, a foreword or cover note will be needed to the draft
document; D. Clunie volunteered to prepare such introductory paragraph.
The additional stakeholders identified were:
 QIBA Groups
 Neurology-related Groups
 TBI Group
21. Supplement 173, Wide Field Ophthalmic Photography Image Storage SOP Class [WI-2013-12A]
This is the First reading of this Supplement. Don Van Syckle is the Editor of this Supplement. The
Supplement is proposed on behalf of DICOM WG-09. He was joined by Carl-Heinz Fleischer, A.
Eslami, M. Horton, S. Virmany, and J. Hemert.
The draft was posted to the meeting folder as < DICOM_supWideFieldOP_PCdraft_v6.doc>
Scope and Field of Application
A SOP Class to enable anatomically correct measurements on wide field ophthalmic photography 8-bit
and 16 bit images.
Vendors have implemented new technology which enables the acquisition of OP images using wide
field fundus photography. Since the back of the eye is approximately a concave sphere, taking a very
wide-Field image of it introduces large error in any attempt to measure a lesion in that image (the error
is very large when using a single value for the DICOM Pixel Spacing Attribute.). Therefore, DICOM
WG 9 (Ophthalmology) has determined that a new Information Object Definition (IOD) is necessary to
adequately represent wide field fundus photography. The OP IOD does not address wide fields, varied
pixel spacing, and proper measurement of a spherical surface or other method of projection.
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Working Group Six (Base Standard)
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June 23-27, 2014
Manufacturers of ophthalmic photographic imaging devices have been developing OP images (using a
narrow field) for many years in DICOM (ie., these SOP Classes are widely supported by the DICOM
ophthalmic community). Therefore, these wide field OP imaging SOP Classes are an extension to
already existing narrow field DICOM SOP Classes. The expected use cases are described below in an
informative annex that will become part of the standard.
WG-06 discussed in detail the concepts in this supplement and suggested changes:
Revisions decided at the first session have been incorporated and version 7 was posted prior to the
second session: < sup173_v7.doc
The Supplement will return for further reading, at the September WG-06 meeting.
22. Supplement 174, WADO RESTful Rendering [WI-2013-12-B]
This was the first reading of the Supplement. Editor J. Philbin presented the contents of the
Supplement as an updated DocBook, rather than in the customary supplement format. This was
posted as <part18_v3.xml>. During the presentation, as a result of discussion by the Group, he
revised the document extensively.
Several open issues were added.
Note: Open Issues – no consensus reached in WG-06; expecting further input from
the Public Comment circulation of the draft.
Closed Issues - WG-06 discussed and reached consensus on the issue; however,
WG-06 will entertain and discuss further comments.
23. Supplement XXX, Multi Energy CT Imaging [WI-2013-08-A]
This was an advance discussion of the concepts being developed by WG-21 to be applied in this
Supplement. The Editor of the Supplement is Shlomo Gotman of Philips Healthcare. He presented the
Concept Paper that WG-21 has been developing (Posted: < Dicom-Multi-Energy-Images-2014-05-22End-Of-TCon - WG21.docx>.) It is notable that two practicing medical physicists of AAPM have
become actively involved in WG-21 in the development of this Supplement.
Multi-Energy CT Imaging: CT multi-energy imaging techniques (including scanning, reconstruction,
processing) where the scanner utilizes multiple energies from the X-Ray beam spectrum, as opposite to
the conventional CT imaging, when a single (accumulated) X-Ray spectrum is used.
The purpose of this discussion was to obtain guidance from WG-06 on the following topics:
 Are these types of images always DERIVED or are they ORIGINAL?
 PRIMARY or SECONDARY?
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


Shall we have some Series-level attribute in order to query?
Defining “insignificant” or “don’t care” pixel value?
Virtual Monochromatic Image

Images Based on Material Decomposition

Material Quantification –
Use Cases for Material Quantification:
 Bone mineral density
 Virtual-Non-Contrast or Virtual Non-Calcium
 Iodine Map

A question: Does Effective Z belong to this category?

Material Labeling (alternative term: “Material Classification”)–




Use Cases for Material Labeling:
 Highlighting of materials that are not well separated from others.
 Increasing the HU value of tendons compared to muscle based on dual energy information.
 Better VRT visualization
 Coloring of kidney stones and bone removal
 Coloring of gout
Material-Enhanced Image
Material-Suppressed Image
Effective Atomic Number Image



Fused images
Blending (mixed) images
Electron density images
The Editor noted that WG-21 has scheduled a face-to-face meeting in July and will begin work on
the draft supplement. The Supplement will return.
24. New Business
There was no new business discussed.
25. Future Meetings

June 23-27, 2014, Edinburgh, UK

Sept. 8-12, 2014, Arlington, MITA HQ, VA, USA
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
Nov. 10-14, 2014, Arlington, MITA HQ, VA, USA
26. Next Meeting Agenda
An agenda plan was prepared for the next meeting. This was posted as <Agenda Plan…..xls> in the
meeting folder.
27. Adjournment
The meeting recessed at 17.30 daily and resumed at 08.30 the next day. The meeting was adjourned at
13.00, on June 27, 2014.
Reported by: Stephen Vastagh, Secretary
Reviewed by legal counsel: Clark Silcox
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Working Group Six (Base Standard)
of the DICOM Standards Committee
June 23-27, 2014