MINUTES
DICOM WORKING GROUP SIX
(Base Standard)
October 27 – 31, 2008
Crystal City (Arlington), VA
(Includes Results from T-con of October 15, 2008)
Members Present
Agfa Healthcare
Burgert, Oliver
DatCard Systems
GE Healthcare
JIRA
Merge Healthcare
Philips Healthcare
RadPharm
Siemens Healthcare
Toshiba Medical Systems
Members Absent
*Carestream Health
Konica Minolta Medical
Imaging
Societe Francaise de Radiologie
Represented by
Robert Horn
Oliver Burgert (Innovation
Center Computer Assisted
Surgery (ICCAS))
Jere Darling
Marie-José Lacroix
Makoto Suzuki
Sebastian Gradin
Bas Revet
David Clunie
Michael Jonas
Kevin O’Donnell
Voting Representative
Tc M T
P X X
X X
P
P
P
P
P
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Tc M T
W T F
X X X
X X X
X
X
X
X
X
X
X
X X
X X
X
X X
X X
X X
X
W T F
TBD
Ügo Joe Piasevoli
Joel Chabriais
1129
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008
Others Present
Earl Canfield
Micha Coleman
Paul Gardiner
Topher Gedeon
Michael Gessat
John Goyette
Mark Horton
Ann Kang
Haiyuan Lu
Joe Luszcz
Andre Mastmeyer
Michael Schmidt
Harry Solomon
Rainer Thieme
Don Van Syckle
Linda Wedemeyer
Howard Clark
Affiliation
WG-12-PE/Philips Healthcare
WG-12-3D/Siemens Healthcare
WG-13/Sony Europe
WG-15/iCAD Inc.
WG-24/ICCAS
WG-22/ADA/Schick
WG/09/Indian Health Service
WG-12-PE/Philips Healthcare
WG-12-PE/Philips Healthcare
WG-12-3D/Philips Healthcare
WG-24/Siemens
WG-09/Medflow
GE Healthcare
WG-02/Siemens Healthcare
DVS Consulting
WG-09/Veterans Administration
MITA Staff
Tc M T
X
X
X
W T F
P
P
P
X
X
X
P
P
X
X X
P
P
X
X
X
X
X
X
X
X
P
X
X X
P
X
X
(* = Does not count toward a quorum, P = Phone)
Presiding Officer:
1.
Rob Horn, Chair
Preliminary Events
Participants identified themselves and their employers. The secretary reported that a quorum was
present.
Members approved the agenda as presented (version 3).
Members reviewed the minutes (revision #3) from the WG-06 meeting held at MITA Headquarters
in August of 2008. Members noted that, in Item 7, the reference to CP739 (Add View Code
Sequence to CT, MR, SC for Cardiac Views) contained an error and needed be revised. This was
done. In particular, they noted that CP739 had been assigned to WG-16 and WG-21 for resolution.
2.
NEMA Staff Report
Committee Secretary Howard Clark reported on ballots that were distributed following the June and
August 2008 meetings of WG-06. All four ballots meet DICOM’s quorum requirements.
Additionally, Supplement 128 was distributed for re-confirmation. At the time that it was originally
balloted, 28 members voted in favor of the Supplement, and two abstained. No members changed
their vote during the re-confirmation process. However, one set of editorial comments was
received. Additional action on this Supplement is recorded in Item 25 below.
1130
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008
BALLOT
APPROVE
Correction
Pack 47
19 for all
except 
Sup119
Correction
Pack 48
20
21 for all
except 
Sup123
Sup128
Reconfirmation
23
28
3.
DISAPPROVE
1(832),
2(851),
1(854)
1(495)
1
0
ABSTAIN
COMMENTS
3 for all
2(817), 1(832), 1(837),
3(851), 1(852), 1(854),
1(855), 1(856), 1(858),
1(860), 1(863), 1(867),
1(869), 1(871), 2(872),
1(873)
2
6
2(568), 1(750), 1(866), 1(363), 3(495), 1(568),
1(874), 1(876), 1(877), 2(750), 2(866), 3(874),
1(878), 1(879), 1(880), 3(876), 1(878), 1(881),
1(882), 1(883), 1(884), 1(882), 2(883), 1(884),
1(885), 1(888), 4 for all 1(886)
4
2
3
1
Ballot Package #47 from June 2008
The CPs listed below were included in Ballot Package 47. However, because the ballot period had
not closed, no action could be taken at this meeting. The results of that ballot are reported in Item 2
above. Comments were submitted for those CPs marked with an asterisks (*) in the list shown
below. Each of these comments was carefully considered, and minor editorial changes were made
in response to them. At the conclusion of this review, members of WG-06 voted unanimously to
approve the following correction items as amended for Final Text:
CP#
*817
*832
*837
850
*851
853
854
*855
*856
857
*858
859
*860
861
862
*863
864
TITLE
Ultrasound Protocol Codes
Clarify MPPS List of Images
Add Filter Attributes
Add Keywords to Data Dictionary
CT SR Dose, Extend for Scan Projection Radiography (SPR)
Reconstruction Index Condition Missing
Change CID 3101 Name
Change Description Corrected Image Attribute
Missing General Series Module for Deformable Spatial Registration IOD
Template Format Corrections to TID 40xx
Clarify Numeric String Enumerated Values and Defined Terms
Clarify Multiple Display Shutter Appearance
Add Code Sequence for Describing Series
Constrain Ophthalmic Tomography Image Type
Ophthalmic Frame Location Functional Group Macro Is Unused
Defined Terms for Cardiac Framing Type in NM
Number of Items in Hanging Protocol Definition Sequence Contents
1131
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008
865
*867
*869
*871
*872
*873
SOP Instance Reference Macro in HL7 Structured Document Reference Sequence
Add ICRP Pub 130 to CT Dose SR
Typo in Description of Move Destination
Consistent Status of 0106H Return Code
Update Cardiovascular Patient History
Update Context Group for Acquisition Modalities
CP852 included some errors; it was reassigned to Bas Revet for further work.
CP869 was reassigned to Michael Jonas. Comments on CP869 submitted by Hologic were
converted into a new CP (#940).
4.
Ballot Package #48 from August 2008
The CPs listed below were included in Ballot Package 48. The results of that ballot are reported in
Item 2 above. Comments were submitted for those CPs marked with an asterisks (*) in the list
shown below. Each of these comments was carefully considered, and minor editorial changes were
made in response to them. At the conclusion of this review, members of WG-06 voted unanimously
to approve the following correction items as amended for Final Text:
CP#
*363
*568
*866
*874
*876
877
*878
879
880
*881
*882
*883
*884
885
*886
887
888
TITLE
Addition of Attribute to MPPS for Group Study UID
Ophthalmology Changes
Force All Directory Records to Be in Use and in a Consistent State
Fixes for Radiation Dose Reporting
CT Radiation Dose Reporting (Dose SR); Change Assignment of X-ray Aluminium
Equivalent
CT Exposure Time for Spiral Scan
Various Correction and Additions X-Ray 3D IOD
Reference Image Sequence Restrictions on XA SOP Class
Add Breast Composition as Numeric Value in Dose SR
Add Reason FOR Performed Procedure Code Sequence
Unknown VR Forbidden in Meta Information Header
Clarify Description of Image and Instance Reference Sequences
DNS Self-discovery for Secure DICOM Services
Add a KOS Document Title Code Stating "Rejected for Patient Safety Reasons"
Add Codes Describing Procedure Type and Indication for Mammography Scheduling
Code Scheme Version Conditionality
Allow Non-HU Pixels for CT Derived Images
CP495 (Add Scheduled Procedure Step Code Sequence) received one negative ballot. Additionally,
several positive ballots were accompanied by comments that could not be implemented. For this
reason, members thought the proposed changes in this CP should be rejected. However, the ballot
had already been approved. In view of these unusual circumstances, members of WG-06 suggested
that the secretary alert the DSC to this situation and determine whether there might be objections
to the rejection of these changes. If none are heard, the CP will be withdrawn.
CP750 (Add Requesting Service Code) is awaiting codes.
1132
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008
CP883 (More Clarification of Instance References): Comments submitted by Hologic were
converted into a new CP (#941) assigned to David Clunie.
5.
Voting Package for October 2008
During the August 2008 meeting, members of WG-06 placed the correction proposals contained in
following table in the Voting Pack for October 2008. During this meeting, after careful review and
some slight modifications, members voted unanimously to include them in a Letter Ballot to be
designated Ballot Package 49 for distribution early in November.
CP
892
893
894
896
897
898
899
900
901
902
903
904
910
911
912
Title
Add De-identifying Equipment to Contributing Equipment Sequence
An Empty Value Is Not a Valid Defined Term
Allow Patient Orientation for Cross-sectional Images
Eliminate 16 bit Row and Column Image Size Restrictions
Context group included twice
Add Operator’s Name to Contributing Equipment Sequence
Matching of Multi-component Names
Multiple Fragments per Encapsulated Frame
Clarify Slit Lamp Biomicroscope Device Code
Clarify Dose SR Relationships as By-value Only
Restrict All Contains Relationships to Be By-value
Correct Mammo Terms to Use “Marker” Rather than “Clip”
Add Tracking Identifier to TID 4004 and TID 4006
Add Condition to DX Patient Position
Allow Specific Characterset in C-MOVE/C-GET Request
CP709 was moved back to the Assigned category during the meeting.
CP891 was moved back to the Assigned category during Tcon on 21 October 2008.
6.
Previously Assigned Change Proposals (To VP for November)
Members reviewed the following assigned correction proposals and, after some modifications,
agreed to include them in the WG-06 Voting Packet for January 2009:
CP
868
875
895
907
908
914
915
916
917
918
919
920
921
922
Title
Inconsistent Attribute Type and Description in Multi-frame Overlay Module and
NM/PET Patient Orientation Module
Update Mammography CID 4014 and CID 4015
Password based encryption for media security
Correction of item-type value in Figure D.3-8
Rules for C-MOVE\C-GET Response Status Values Contradict Status Table
FOR Module in RT Ion Plan
Generalize Beam Delivery Request Object for RT Ion Plans
Primary Fluence Mode Corrections
Table Parameters in Delivery Request IOD
Add Missing Veterinary Breeds
Add Orientation For Quadrupeds
Clarify CT or MR Condition for Patient Position
Pixel Padding Value Shall Only Be Present for Images
Add Anatomy, View Codes and Acquisition Context for Veterinary Use
1133
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008
926
7.
Common Instance Reference Module
Previously Assigned Change Proposals (Reviewed)
The following correction proposals were reviewed, refined and dispatched as noted:
CP#
Title
594
Table Position Requirements in Enhanced MR and MR
Spectroscopy
Acquisition Context for Digital X-Ray
Move Some X-Ray Field-of-View Attributes
Inconsistent attribute type and description in Multi-frame Overlay
Module and NM/PET Patient Orientation Module
Password Based Encryption for Media Security
Segmentation Objects in Blending Presentation State
Change Applicable Frame Range Attribute Name
Correct units in TID 3560
Common Instance Reference Module
709
852
868
895
924
927
928
929
930
8.
Result
SOP Class Related Sub Items Should Be Limited to One for Each
SOP Class UID Present in an A-ASSOCIATE Request.
Withdrawn by
WG-16
H. Solomon
B. Revet
D. Clunie
WG-14
H. Solomon
Cancelled
H. Solomon
Cancelled –
Duplicates 926
M. J. Lacroix
Previously Assigned Change Proposals (Not Reviewed)
The following change proposals were not ready for review at this meeting and were held over for
future consideration:
CP#
Title
123
145
235
296
375
430
463
464
471
591
596
597
650
729
739
Clarification of Unknown VR Byte Order Issues
Curve Data Value Representation Clarification
Clarify NM detector start angle usage
Eliminate Duplicate Terms and Provide Missing Definitions
Correct CID 4017 – Intra-oral Anatomy Modifier
Additions to PS 3.16 for Cardiac Cath SR
Clarify That Order of Template Rows Is Significant
Add SOP Common to the Print-related N-CREATEs
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 Pediatric Patient Size to Patient Demographics Module
Change SCP-ECG Nomenclature to ISO/IEEE 11073 or SNOMED
Add View Code Sequence to CT, MR, SC for Cardiac Views
757
797
804
811
Add RTSS ROI Feature UID
Measurement References to Segments
Indicator for Cone Beam CT
Note for Forwarders Regarding SCP-assigned
Instance UIDs during N-CREATE
Clarification that Pixel Padding Value Is a Raw
Value before Any Transformations
812
Assigned to
1134
D. Clunie
D. Clunie
J. Pohlhammer
H. Solomon
K. O’Donnell
H. Solomon
H. Solomon
R. Horn
H. Solomon
H. Solomon
R. Horn
H. Solomon
H. Solomon
H. Solomon
WG-16 & WG-21
for resolution
H. Solomon
WG-15
D. Murray
D. Harvey
D. Harvey
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008
833
836
838
870
890
891
905
906
907
908
909
913
923
925
9.
Transfer Syntax Availability and Selection for Q/R
Clarify Usage of Attributes for Normalized IODs
Consistent Naming of Error Code Tables
Add Hanging Protocol Information Model – N-GET SOP Class
Cardiac Trigger before R Peak
Dimension Module in Enhanced XA/XRF Mandatory
Add FAT32 Format Support for USB Media
Remove Summary from CID 7001
Clarify Use of Summary as a Report Heading
Rules for C-MOVE\C-GET Response Status Values Contradict
Status Table.
Conformance Template Does Not Specify Where WADO
Conformance Is Described
Cardiac Stress State Code
Instance Availability Status Codes
Addition of Ophthalmology Modality code
R. Horn
K. O’ Donnell
K. O’Donnell
R. Horn
B. Revet
B. Revet
D. Heaney
H. Solomon
M.J. Lacroix
M.J. Lacroix
R. Horn
M. Lacroix
R. Horn
R. Horn
New Change Proposals
The following new change proposals were reviewed and dispatched as noted:
File ID
CP
dac_133
931
hs80
mj03
dh10
932
933
934
Beamdosede
pth
GeneralAcce
ssoryDataTy
pes
GeneralAcce
ssoryinRTIm
age
RTDoseMult
iplePlanRefe
rences
SetupDevice
AccessoryCo
des
WG-20_
SNOMED
Hologic cmts
On CP869
Hologic cmts
on CP883
dac_134
Name
Assigned to
or Outcome
D. Clunie
935
Verification, Completion, Preliminary, Final and
Amended SR Status
Patient Dismissed from Lab
Typo in description of TM Definition
Fix Inconsistency of C-FIND only Number of
Patient Related XXX attributes
Beam Dose Depth
936
General Accessory Data Types
D. Murray
937
General Accessory in RT Image
D. Murray
938
Multiple RT Plan References in RT Dose
D. Murray
939
Setup Device Accessory Code
D. Murray
940
Replace SNOMED Qualifier Codes in Context
Groups 7470, 7471 and 7472
Clarify C-MOVE Destination
Hold for further
discussion
M. Jonas
941
More Clarification of Instance References
D. Clunie
942
Consent for Distribution and Ethics Committee
Approval
D. Clunie
1135
H. Solomon
M. J. Lacroix
D. Harvey
D. Murray
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008
10.
dac_135
dac_136
hs81
MJL7
MJL8
943
944
945
946
947
MJL9
948
MJL10
949
MJL11
950
Retain Raw Data Flag
Extend Procedure Intent Context Group
Break Out PPS Discontinue Subsets
Rollback of support for leap seconds
DICOM Standard Should Explicitly Define
Calendar System
Remove restriction that C-MOVE shall establish a
new association to improve performance
Clarify Basic Worklist Management Service
Extended Negotiation
Inapplicable VR Referenced for LUTData
D. Clunie
D. Clunie
H. Solomon
R. Horn
M.J. Lacroix
M.J. Lacroix
M.J. Lacroix
D.Clunie
Supplement 43 – Ultrasound ND Storage SOP Classes {WI 1998-08-C}
In advance of this meeting, Joe Luszcz submitted some detailed questions seeking WG-06 guidance
on the use of Multi-frame Dimension for Enhanced US Image IOD. Mr. Luszcz noted that WG-123D had discarded all references to Stack concepts and are specifying that Dimensions be used to
describe the relationships between frames in the image, with actual values of data type, spatial
position, and temporal position attributes as dimension values. Further, he explained that WG-123D favors some constraints on the application of Dimensions to this object. In particular, they
would like to establish minimal dimension attributes to be specified and the ranking of dimensions
for temporal, spatial, and data type values. While members of WG-06 considered that WG-12-3D
appears to be on the right track, no definitive advice could be given at this time regarding the use of
such constraints. This is because the approach affects several other modalities, and WG-06 needs to
settle on an approach that will be suitable for all. WG-06 suggested that WG-12-3D identify this
topic in the text of Sup43 as an issue that needs to be resolved and make a suggestion on how it
should be handled. WG-06 will attempt to resolve this matter during the next review.
11.
Supplement 74 – Utilization of Worklist in Radiotherapy Treatment Delivery {WIR
2000-11-B}
Not discussed at this meeting. This supplement is currently available as a Frozen Draft for Trial
Use. Copies may be found at:
ftp://medical.nema.org/MEDICAL/Dicom/Supps/sup74_fz2.doc
or
ftp://medical.nema.org/MEDICAL/Dicom/Supps/sup74_fz2.pdf
12.
Supplement 78 – Pediatric, Fetal and Congenital Cardiac Ultrasound Reports
Ann Kang, Earl Campbell and Haiyuan Lu of WG-12-PE presented version 30 of this draft
supplement. Since the August meeting of WG-06, members of WG-12-PE have identified many of
the specific SNOMED codes that should be associated with key terms in the Pediatric Echo
Procedure Report, thus, helping to resolve a major deficiency in the document. More work is
needed in identifying and editing the entries for these codes. A teleconference was scheduled for
Friday, November 7, 2008 to review progress on this matter.
1136
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008
13.
Supplement 95 – Audit Trail Messages {WI 2001-11-C}
Not discussed at this meeting. This supplement is currently available as a Frozen Draft for Trial
Use. Copies may be found at:
ftp://medical.nema.org/MEDICAL/Dicom/Supps/sup95_fz.doc
or
ftp://medical.nema.org/MEDICAL/Dicom/Supps/sup95_fz.pdf
Mr. Horn is preparing a revised version of this supplement that incorporates the conclusions
reached during the WG-06 meeting of August 2008.
14.
Supplement 96 – Unified Worklist and Procedure Step {WI 2000-11-B & 2003-12-A}
Not discussed at this meeting. This supplement is currently available as a Frozen Draft for Trial
Use. Copies may be found at:
ftp://medical.nema.org/MEDICAL/Dicom/Supps/sup96_fz2.doc
or
ftp://medical.nema.org/MEDICAL/Dicom/Supps/sup96_fz2.pdf
15.
Supplement 109 – SOP Instance Location Service {WI 2004-12-A}
Not discussed at this meeting. This supplement is under development by members of WG-06. It
was last considered by WG-06 in January of 2005.
16.
Supplement 115 – Evidence Document SOP Classes {WI 2003-12-B}
Not discussed at this meeting. The supplement is under development by members of WG-06. It
was last reviewed by WG-06 in January of 2006.
17.
Supplement 118 – Application Hosting {WI 2004-09-E}
Not discussed at this meeting. The supplement is under development by members of WG-23. It
was last reviewed by WG-06 in August of 2008.
18.
Supplement 119 –Frame Level Retrieve SOP Classes {WI 2005-12-A}
Not discussed at this meeting. The supplement is under development by members of WG-06. It
was last reviewed by WG-06 in June of 2008.
19.
Supplement 120 – Extended Presentation States {WI 2005-09-A}
This document was sent for Public Comment with a deadline of February 2, 2007. Five sets of
comments were received. In June of 2008, Andrei Mastmeyer (and Michael Pisot by phone)
reviewed these comments and the changes that were proposed in response to them. At that time, a
major discussion focused on how to handle the details of lines, ticks, and pixel coordinates. During
this October meeting, Mr. Mastmeyer provided an update on progress made during the last few
months including feedback from a WG-11 teleconference on October 8. Considerable discussion
focused on the desirability of creating a new SOP class versus extending the existing ones. In the
end, members decided it would be best to extend the old SOP Class and leave out any new features
(e.g., color bar and arc) that can’t be supported by it. Mr. Mastmeyer will prepare a revised
document for consideration at a future meeting.
1137
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008
20.
Supplement 121 – Modality Procedure Plan and Protocol Storage {WI 2006-04-E}
Not discussed at this meeting. The supplement is under development by members of WG-06. It
was last reviewed by WG-06 in January 2007.
21.
Supplement 122 – Specimen Identification and Revised Pathology SOP Classes {WI
2006-11-B}
Not discussed at this meeting. The supplement is under development by members of WG-26. It
was last reviewed by WG-06 in June of 2008.
22.
Supplement 123 – Structured Display {WI 2004-12-C}
This supplement was approved for Letter Ballot during the August meeting of WG-06. One
negative ballot (Web 3d Consortium) and two sets of comments were received. On behalf of
DICOM’s WG-22, WG-11, and WG-02, John Goyette and Harry Solomon (via phone) led a
discussion of these comments. While a number of editorial changes were made in response to
suggestions from Hologic, no changes were made in response to the negative ballot. Rob Horn
will communicate the group’s decision and rationale to Web 3d’s representative. While the
document was nearly ready for Final Text, members were concerned that a few corrections were
required for “Figure Usecase-1 Intra-oral Full Mouth Series Structured Display.” The changes
were implemented by WG-06 chair Rob Horn. At the conclusion of this review, members voted
unanimously to approve the document for Final Text.
23.
Supplement 124 – Communication of Display Parameters {WI 2004-12-B}
At the August meeting of WG-06, JIRA representatives Takahira Yoneda and Norihisa Matsui gave
a PowerPoint presentation that summarized the recent history of this document’s development,
compared the structure of Sup124 to that of Sup96, raised a number of specific questions, and
identified numerous Open Issues. Following a detailed discussion of these issues, members began a
line-by-line review of the entire document, and numerous questions arose that require additional
work. To address some of these questions, a teleconference was held on October 23 involving WG06 Chair Rob Horn, WG-06 member Kevin O”Donnell, WG-06 Secretary Howard Clark and the
two JIRA representatives. Mr. O’Donnell explained that he had recorded the changes in the
document resulting from this discussion and posted it to the private FTP site for that T-con.
Members are invited to review it as time becomes available.
24.
Supplement 126 – Colon Computer-Aided Detection SR SOP Class {WI 2005-12-C}
On behalf of WG-15, Topher Gedeon presented version pc+3 of a draft supplement aimed at
introducing the DICOM SR format for the results of computer-aided detection (CAD) of potential
malignancies in colon radiographs. As is customary for groups seeking authorization to distribute a
Supplement for letter ballot, Mr. Gedeon began by reviewing the public comments that had been
received and explaining how each had been resolved. This was followed by a detailed line-by-line
review and refinement of the draft supplement. Unfortunately, time ran out before all of the agreedupon changes could be implemented. Mr. Gedeon will complete these changes and forward the
revised document to WG-06 for discussion in a Tcon that has not yet been scheduled.
1138
_____________________________
Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008
25.
Supplement 128 – Cardiac Stress Testing SR {WI 2006-09-A}
This supplement passed letter ballot in August of 2007. However, codes from SNOMED and IEEE
were not initially available. As a consequence, this supplement was approved by WG-06 as a
Frozen Draft for Trial Use. Subsequent to the August meeting of 2008, members of WG-06 learned
that all of the missing codes had become available and were inserted into the document. It was,
then, sent to members of the DICOM Standards Committee for a confirmation ballot. While no
members of the Committee changed their ballot, some minor Typos were identified. In the course
of this meeting, these errors were corrected, and members voted to approve the document for Final
Text.
26.
Supplement 129 – Electrophysiology Structured Reports and Procedure Log
Templates {WI 2006-04-A}
Not discussed at this meeting. This supplement is under development by members of WG-01. It
was last reviewed by WG-06 in August 2007.
27.
Supplement 131 – Implant Templates {WIR 2007-03-D}
On behalf of WG-24, Michael Gessat presented version #18 of this draft supplement with the
objective of securing authorization to seek Public Comments. Initial discussions were focused on
the list of Open Issues but, later, turned to a detailed review of the document. Considerable
progress was made in refining the approach and detailed technical content. One significant decision
was to move mating and landmark information to Part 17. Mr. Gessat will return at a future
meeting to complete this review.
28.
Supplement 133: Color Palette Storage, Query, and Retrieval {WIR 2007-03-C}
Not discussed at this meeting. This supplement is under development by members of WG-06. It
was last reviewed in January of 2008.
29.
Supplement 134 – Implantation Plan SR IOD {WIR 2007-06-B}
Not discussed at this meeting. This supplement is under development by members of WG-24. It
was last reviewed by WG-06 in June 2008.
30.
Supplement 135 – SR/CDA Mapping {WIR 2007-06-C}
Not discussed at this meeting. This supplement is under development by members of WG-20. It
was last reviewed by WG-06 in January of 2008.
31.
Supplement 136 – DOT Mammography Storage SOP Class {WIR 2006-04-C}
Not discussed at this meeting. This supplement is under development by members of WG-15. It
was last reviewed by WG-06 in January of 2008.
32.
Supplement 137 – MPEG2 MP@HL Transfer Syntax {WIR 2007-06-E}
On behalf of DICOM’s WG-13, Paul Gardiner briefed members on the changes to this supplement
that had been made by WG-13 in response to previous recommendations from WG-06 and two sets
of Public Comments. Following this discussion, members conducted a detailed, line-by-line review
1139
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October 27 – 31, 2008
of the document. At the conclusion of this review, while a quorum was present, members
unanimously voted to approve its distribution for Letter Ballot.
Supplement 139 – Enhanced XA/XRF IOD Informative Annex {WIR 2002-06-A}
33.
Rainer Thieme, who is about to retire from Siemens Healthcare, attended this meeting on behalf of
WG-02. In recognition of more than 15 years of service and leadership to the DICOM Community,
WG-06 Chair Rob Horn presented a certificate to Mr. Thieme expressing the appreciation of both
NEMA’s Medical Imaging and Technology Alliance and the DICOM Standards Committee.
Following this event, Mr. Thieme gave a PowerPoint presentation on the history of WG-02’s efforts
to encourage greater use of the Enhanced XA/XRF Object. Recognizing the value of an
“Instruction Manual” such as this, members of WG-06 took a few minutes to identify additional
topics that could benefit from the preparation of similar documents. Potential candidates included:
 Unified Procedure Step
 Ultrasound 3D
 Implants
 Surface Segmentation
Mr. Thieme’s presentation was followed by a discussion of a few remaining issues in draft
Supplement 139. This revealed a significant open issue regarding one of the diagrams and an
opportunity to sharpen the statement of the “Document’s Purpose.” However, because the
document was available only in PDF format, corrections could not be made at this time. Members
proposed the following procedure to complete the document’s preparation for Public Comment:

Agree that, except for the revised diagram, open issue, and refined statement of purpose, the
document is ready for Public Comment.

Charge WG-02 with making the necessary changes during its November meeting in Berlin.

Authorize the chair of WG-06 to determine whether the necessary changes were properly
implemented.

If so, the chair of WG-06 shall authorize the secretary to issue the document for Public
Comment
This process for authorizing the document’s distribution for Public Comment was moved,
seconded, and approved unanimously.
34.
Supplement 140 – XA/XRF Grayscale Softcopy Presentation State Storage SOP Class
{WIR 2007-03-A}
On behalf of WG-02, Bas Revet presented version 8 of a draft supplement on the above-named
topic. After reviewing the motivation for this effort, Mr. Revet noted that the Enhanced XA/XRF
SOP Class defines an augmented context for acquisition and presentation. However, a comparable
context for presentation is missing in the existing GSPS. Six separate use cases were detailed.
After conducting a detailed review of this document with special focus on its Open Issues, members
voted unanimously to approve its distribution for Public Comment.
1140
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October 27 – 31, 2008
35.
Supplement 141 – Enhanced MR Color Image Storage SOP Class {WIR 2007-11-C}
Not discussed at this meeting. This supplement is under development by members of WG-16. It
was last reviewed by WG-06 in June 2008.
36.
Supplement 142 – Clinical Trial De-identification Profiles
On behalf of WG-18, David Clunie presented version 3 of the above-named draft supplement for its
first reading. In introducing the document, Dr. Clunie explained that in clinical trials, images are
often acquired during the course of clinical care, in which case the patient’s individually identifiable
information as well as other information not directly related to the patient’s identity per se needs to
be removed to protect the patient’s privacy. Conversely, he noted, it is important to preserve certain
specific information for quality control and analysis that is essential to the conduct of the clinical
trial, which might otherwise be removed. WG-18 has determined that it is appropriate to add
additional confidentiality profiles to the DICOM Standard that are appropriate to specific types of
trials, both to provide instruction for implementers, to assure compliance, and to provide guidance
for sites and trial administrators that has been subject to expert review.
After explaining the rationale for this supplement, Dr. Clunie briefed members on the proposed
changes to the standard and provided an extensive list of Open Issues for consideration during the
public review of the document. He will return at a future meeting for Public Comment review.
37.
Supplement 143 – Macular Grid Thickness and Volume {WIR 2007-11-D}
Not discussed at this meeting. This supplement is under development by members of WG-09. It
was last discussed by WG-06 in August of 2008.
38.
Ophthalmic Axial Measurements Storage SOP Classes {WIR 2008-04-A}
On behalf of DICOM’s WG-09, Linda Wedemeyer, Mark Horton, and Michael Schmidt (plus Don
Van Syckle by phone) presented a draft supplement on the above named topic for a first reading.
Dr. Wedemeyer explained that ophthalmic axial measurement devices currently do not have a
specific data representation in the DICOM standard. However, like the ophthalmic refractive
devices defined in supplement 130 these modalities produce a set of numeric measurement values.
Some instruments may incorporate an imaging function, or the measurement function may be an
adjunct to an imaging modality. Also, most instruments provide at least a graphical display
associated with one or more measurements. For this reason, the present IOD provides for capture of
graphical displays as well as numeric measurements. In addition, they produce results of
calculations that are based on these measurement values as well as on data from other sources (for
example manual data entry, data transfer, or reference to other SOP instances). At the conclusion of
this briefing, WG-06 designated the document as Supplement 144. Representatives of WG-09 will
return at a future meeting to seek authorization to issue the document for Public Comment.
39.
Long-term Consistency
Not discussed at this meeting. A work item request to prepare a supplement on this topic is under
development by members of WG-06. It was last discussed by WG-06 in January of 2008.
1141
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October 27 – 31, 2008
40.
Publishing DICOM in XML
Recent discussions with MITA’s contractor indicate that substantial progress has been made in
converting the 381 figures to an XML compatible format.
41.
New Business
No new business was introduced at this meeting.
42.
Old Business
Members reported hearing complaints about the quality of some supplements that were issued for
Letter Ballot over the past few months and agreed that the complaints were valid. On a few recent
occasions, the pressure to finish a supplement to meet some external deadline had taken precedence
over members desire to provide a high quality product. Likewise, members noted that the limited
time between meetings often makes it impossible for working group members to adequately review
public or ballot comments, revise their documents as appropriate, and submit them to WG-06 in a
timely fashion. Accordingly, members suggested that a more effective (though longer) process should
be developed. Members suggested that the process should provide for the minimum time intervals
shown below:
Week#
1
2
2++
3 – 8.5
8.5 +
9 – 10
Who
WG-06
Staff
WG-XX
Public
Staff
WG-XX
11
12
13 – 14
WG-06
WG-06
Staff
15 – 21
22
23 – 24
25
26
What
Meets and approves a supplement for public comment.
Solicits public comments from the DICOM Community.
Solicits comments from other appropriate, non-DICOM sources.
Prepares and submits comments to staff.
Forwards comments to WG-XX ListServ
Reviews and crafts its response to the comments. Posts response and
updated supplement to WG-06 private FTP site.
Reviews documents prior to its next meeting.
Meets and approves the supplement for letter ballot.
Prepares ballots for legal review. Sends ballots to DICOM Standards Cmte.
members, observers and others.
Submit their marked ballots and comments to staff.
DSC
Members
Staff
Forwards comments to WG-XX ListServ
WG-XX Reviews and crafts its response to the comments. Posts response and
updated supplement to WG-06 private FTP site.
WG-06 Reviews documents prior to its next meeting.
WG-06 Meets and approves supplement for final text or confirmation ballot.
Note, while this schedule indicates 10 weeks between the end of one WG-06 meeting and the
beginning of the next, the actual time could, in fact, be as little as eight weeks. In such situations, a
working group would be unable to move from Public Comment to Letter Ballot or from Letter Ballot
to Final Text in two consecutive meetings of WG-06. The process proposed here will be reviewed at
a future meeting.
1142
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October 27 – 31, 2008
43.
Future Meetings
The Group’s future meeting dates and locations are as follows:







November 7, 2008 WebEx T-con for Sup78
January 7, 2009 T-con for CPs
January 19 – 23, 2009 in San Francisco
March 23 – 27, 2009 at MITA
June 22 – 26, 2009 in Leipzig (Link to CARS in Berlin)
August 24 – 28, 2009 at MITA
October 26 – 30, 2009 at MITA
Unless otherwise noted, meetings are scheduled from 8:30 a.m. to 5:30 p.m. each day; T-cons begin
at times specified above and normally continue for two hours.
44.
Next Meeting Agenda
A detailed agenda for the next meeting will be prepared at a later date.
Anticipated topics for January are marked in bold in the following table:
Topic
Last
Review
CPs
Sup043
Sup078
Sup095
Sup109
Sup115
Sup118
Sup119
Sup120
Sup121
Sup124
‘08-08
‘08-10
‘08-08
’05-01
’06-01
‘08-08
’08-06
’08-10
’07-01
’08-08
Sup126
Sup129
Sup131
Sup133
Sup134
Sup135
’08-10
’07-08
’08-10
’08-01
’08-06
’08-01
Sup136
Sup137
Sup138
Sup139
Sup140
NA
’08-06
NA
’08-10
’08-10
Goal
Hours
2
LB
2
LB
2
LB Review 2
PC
0
PC
0
PC
2
FT
2
LB/FZ
2
FR
0
PC
2
2
2
2
2
0
0
2
2
2
0
2
2
2
0
0
0
0
0
0
LB
LB
PC
LB
PC
HL7 Bal.
Prep.
1
2
2
1
2
0
0
0
0 0
1 0
0
FT
LB
LB
2 2
1 1
0
0
2
2
2
2
2
2
0
2
0
0
2
Title
Ultrasound ND Storage – J. Luszcz – (Jan)
Pediatric Echo – (Mar)
Audit Trail – R. Horn – (As available)
SOP Instance Location Service – H. Solomon
Evidence Document – D. Clunie
Application Hosting – L. Tarbox (Jan)
Frame Level Retrieve – D. Harvey (???)
Extended Presentation States – A. Mastmeyer (Mar)
Protocol Storage – K. O’Donnell
Display Parameter Retrieval – T. Yoneda (Based on
tcon review and readiness)
Colon CAD Structured Report – T. Gedeon (???)
Cardiology Electro Physiology SR (Ready???)
Implant Description (WG-24) (Jan) M. Gessat
Palette Color Storage (Jan)
Implantation Plan SR Document (Jan) T. Treichel
SR/HL7 CDA Mapping (Tcon)
DOT Mammography
MPEG-2 (Jan)
Crestal Implant Storage SOP Class
WG-02 Technical Document (Mar)
XA/XRF Presentation State (Mar)
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Working Group Six (Base Standard)
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October 27 – 31, 2008
Sup141
Sup142
Sup143
’08-06
’08-10
’08-08
SupXXX NA
SupXXX NA
’08-01
Sup144
’08-10
Admin.
45.
LB
PC
PC
1
2 2
2 2
FR
FR
W.I. Prep
PC
2
2
2
2
0
0
2
2
0
0
0
1 0
0
Enhanced Color MR (Jan)
Deidentification – D. Clunie
Macular Grid Thickness and Volume – L.
Wedemeyer (Jan – Thur p.m. Fri a.m.)
2nd Generation RT (Mar)
Whole Slide Imaging in Pathology (Jan)
Long-term Consistency (E-mail)
Biometry – Axial Length L.Wedemeyer (Jan – Fri.
a.m.)
TOTAL = 54 hr
Adjournment
The meeting was adjourned at 2:10 p.m. on October 31, 2008.
Reported by:
Howard E. Clark, Secretary
November 6, 2008
Reviewed by counsel:
November 7, 2008
1144
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Working Group Six (Base Standard)
of the DICOM Standards Committee
October 27 – 31, 2008