DICOM Correction Proposal
STATUS
Assigned
Date of Last Update
2013/08/19
Person Assigned
David Clunie dclunie@dclunie.com
Submitter Name
David Clunie dclunie@dclunie.com
Submission Date
2013/07/24
Correction Number
CP-1318
Log Summary: RDSR From MPPS Without Exposure Dose Sequence for Projection Radiography
Name of Standard
PS 3.16 2011
Rationale for Correction:
CP 874 allowed for the possibility of constructing RDSRs from MPPS information, but did not consider the
possibility that the MPPS might not contain individual irradiation event information in Exposure Dose
Sequence, since all attributes of the Radiation Dose Module in MPPS are optional. Alternatively, the
information may be copied or computed from the images.
Rather than add conditions on MPPS (et al) to every required or conditional attribute in TID 10003 and its
those in its sub-templates, it is more realistic to place the condition on the inclusion of TID 10003 itself.
This also affects the accumulated dose information, since it may not be possible to distinguish fluoro from
acquisition information and only the total may be available, which is still worth encoding.
Also, remove redundant "may be present otherwise", since that's what "IF" as opposed to "IFF" is defined to
mean.
Correction Wording:
Amend templates in PS 3.16:
TID 10001
Projection X-Ray Radiation Dose
...
TID 10001
PROJECTION X-RAY RADIATION DOSE
Type: Extensible
Order: Non-Significant
NL Rel with
Parent
1
VT
Concept Name
VM Req Condition
Type
CONTAINER EV (113701, DCM,
“X-Ray Radiation
Dose Report”)
1
M
...
...
...
...
...
... ...
11
>
CONTAINS
INCLUDE
DTID (10002)
Accumulated X-Ray
Dose
1
12
>
CONTAINS
INCLUDE
DTID (10002)
Accumulated X-Ray
Dose
13
>
CONTAINS
INCLUDE
DTID (10002)
Accumulated X-Ray
Dose
Value Set Constraint
...
...
MC
IFF Single Plane system
$Plane = EV (113622,
DCM, ”Single Plane”
1
MC
IFF Biplane system
$Plane = EV (113620,
DCM, ”Plane A”)
1
MC
IFF Biplane system
$Plane = EV (113621,
DCM, ”Plane B”)
Page 1
14
>
CONTAINS
...
... ...
18
>
CONTAINS
INCLUDE
DTID (10003)
Irradiation Event XRay Data
1-n
MC
...
...
...
...
CODE
EV (113854, DCM,
“Source of Dose
Information”)
1-n
M
IF any of the values of
TID (10001) Row 18 are
not (113858, DCM,
“MPPS Content”),
(113866, DCM, “Copied
From Image Attributes”)
or (113867, DCM,
“Computed From Image
Attributes”)
...
...
DCID (10020) Source of
Projection X-Ray Dose
Information
Content Item Descriptions
...
...
Row 14
Details of the underlying irradiation events. If Row 6 has no other a value of than “MPPS Content” then a
TID 10003 item can will be generated for each item in the MPPS Exposure Dose Sequence (0040,030E),
but since this is an optional element in MPPS, if it is absent, then there may be no irradiation event
level information available. Alternatively, the information may be copied or computed from the
images.
...
...
Row 18
The primary source of information from which this dose object was constructed.
For reference, unchanged irradiation event templates in PS 3.16:
TID 10003
Irradiation Event X-Ray Data
...
TID 10003
IRRADIATION EVENT X-RAY DATA
Type: Extensible
Order: Non-Significant
NL Rel with VT
Parent
1
Concept Name VM Req Condition
Type
CONTAINER EV (113706, DCM,
”Irradiation Event XRay Data”)
1
M
2
>
CODE
HAS
CONCEPT
MOD
EV (113764, DCM,
“Acquisition Plane”
1
M
3
>
CONTAINS UIDREF
EV (113769, DCM,
“Irradiation Event
UID”)
1
M
4
>
CONTAINS TEXT
EV(113605, DCM,
“Irradiation Event
Label”)
1
U
5
>> HAS
EV(113606, DCM,
“Label Type”)
1
MC
CODE
CONCEPT
MOD
6
>
CONTAINS DATETIME
DT (111526, DCM,
“DateTime Started”)
1
M
7
>
CONTAINS CODE
EV (113721, DCM,
“Irradiation Event
Type”)
1
M
8
>
CONTAINS TEXT
EV (125203, DCM,
“Acquisition
Protocol”)
1
U
9
>
CONTAINS CODE
EV (T-D0005, SRT,
“Anatomical
structure”)
1
U
Page 2
Value Set Constraint
DCID (10003) Equipment
Plane Identification
IF the value of Row 4 is
the value of an Attribute
in the images.
DCID (10022) Label Type
DCID (10002) Irradiation
Event Types
DCID (4009) DX Anatomy
Imaged
10
CODE
EV (G-C171, SRT,
“Laterality")
1
UC
11 >
CONTAINS CODE
EV (111031, DCM,
“Image View”)
1
U
DCID (4010) DX View
DCID (4014) View for
Mammography
12 >>
CODE
HAS
CONCEPT
MOD
EV (111032, DCM,
“Image View
Modifier”)
1-n
U
DCID (4011) DX View
Modifier
DCID (4015) View Modifier
for Mammography
13 >>
CONTAINS CODE
EV (113946, DCM,
“Projection
Eponymous Name”)
1
U
DCID (4012) Projection
Eponymous Name
14
>
CONTAINS CODE
EV (113745, DCM,
“Patient Table
Relationship”)
1
U
DCID (21) Patient Gantry
Relationship
15
>
CONTAINS CODE
EV (113743, DCM,
“Patient Orientation”)
1
U
DCID (19) Patient
Orientation
16
>> HAS
CODE
EV (113744, DCM,
“Patient Orientation
Modifier”)
1
M
DCID (20) Patient
Orientation Modifier
DCID (4031) Common
Anatomic Regions
>> HAS
CONCEPT
MOD
CONCEPT
MOD
If anatomy is bi-lateral
DCID (244) Laterality
17
>
CONTAINS CODE
EV (123014 , DCM,
(”Target Region”)
1
M
18
>
CONTAINS NUM
EV (122130, DCM,
“Dose Area Product”
1
MC
19
>
CONTAINS NUM
EV (111634, DCM,
“Half Value Layer”)
1
U
20
>
CONTAINS NUM
EV (111636, DCM,
“Entrance Exposure
at RP”)
1
MC
IF TID (10001) Row 2 = Units = EV (mGy, UCUM,
(P5-40010, SRT,
“mGy”)
“Mammography”) and
(TID (10001) Row 8 is
absent or value is (R0038D, SRT, “Yes”)) and
(TID (10001) Row 9 is
absent or value is (R0038D, SRT, “Yes”))
21
>
CONTAINS TEXT
EV (113780, DCM,
“Reference Point
Definition”)
1
MC
IF Row 20 is present and
Row 22 is not present
22
>
CONTAINS CODE
EV (113780, DCM,
“Reference Point
Definition”)
1
MC
IF Row 20 is present and DCID (10025) Radiation
Row 21 is not present
Dose Reference Points
23
>
CONTAINS INCLUDE
DTID (4007)
Mammography CAD
Breast Composition
1
U
24
>
CONTAINS TEXT
EV (121106, DCM,
“Comment”)
1
U
25
>
CONTAINS INCLUDE
DTID (1020) Person
Participant
1-n
U
26
>
CONTAINS INCLUDE
DTID (10003a)
Irradiation Event XRay Detector Data
1
MC
IFF TID (10001) Row 8 is
absent or has a value of
(R-0038D, SRT, “Yes”)
27
>
CONTAINS INCLUDE
DTID (10003b)
Irradiation Event XRay Source Data
1
MC
IFF TID (10001) Row 9 is
absent or has a value of
(R-0038D, SRT, “Yes”)
28
>
CONTAINS INCLUDE
DTID (10003c)
Irradiation Event XRay Mechanical Data
1
MC
IFF TID (10001) Row 10
is absent or has a value
of (R-0038D, SRT, “Yes”)
IFF TID (10001) Row 2 = Units = EV (Gy.m2, UCUM,
(113704, DCM,
"Gy.m2")
“Projection X-Ray”)
Units = (mm, UCUM, “mm”)
$PersonProcedureRole =
EV (113851, DCM,
“Irradiation Administering”)
Content Item Descriptions
Row 3
If the image generating entity does not assign a DICOM UID to the irradiation event (e.g., for non-digital
Page 3
imaging equipment), the application generating this report shall assign a UID.
In the case of non-integrated cassette-based equipment, a standalone Detector will generate UIDs for the
Events it observes. If the X-Ray Source component of the equipment also reports information, it too will
generate UIDs for the Events it creates. A downstream system (e.g. a workstation or the Dose Information
Reporter itself) may combine the two reports into a composite report, and match up the events based on
details such as the time information, and use the UIDs of the X-Ray Source.
Row 6
Row 17
Provide DateTime the application of X-Ray started. This shall correspond to the start of the first irradiation
in the Irradiation Event, which defines the starting point for the calculation of Row 36 “Irradiation Duration”.
The target region is the anatomy exposed.
Row 21
A text definition of the Reference Point (RP) used for RP-related dose values.
Row 22
A coded definition of the Reference Point (RP) used for RP-related dose values
Row 25
People responsible for the administration of the radiation reported in the irradiation event. May include
values which would appear in Performing Physicians’ Name (0008,1050), Performing Physician
Identification Sequence (0008,1052), Operators’ Name (0008,1070) and/or Operator Identification
Sequence (0008,1072).
TID 10003a
Irradiation Event X-Ray Detector Data
This template contains data which is expected to be available to the X-Ray detector or plate reader
component of the equipment.
TID 10003a
IRRADIATION EVENT X-RAY DETECTOR DATA
Type: Extensible
Order: Non-Significant
NL Rel with VT
Parent
Concept Name VM Req Condition
Type
Value Set Constraint
1
NUM
EV (113845, DCM,
“Exposure Index”)
1
MC
IF the value is
Units = (1,UCUM, “no
displayable to the X-Ray units”)
system operator.
2
NUM
EV (113846, DCM,
“Target Exposure
Index”)
1
MC
IF the value is
Units = (1,UCUM, “no
displayable to the X-Ray units”)
system operator.
3
NUM
EV (113847, DCM,
“Deviation Index”)
1
MC
IF the value is
Units = (1,UCUM, “no
displayable to the X-Ray units”)
system operator.
4
INCLUDE
DTID (1021) Device
Participant
1
U
5
IMAGE
EV (113795, DCM,
“Acquired Image”)
1-n
MC
$DeviceProcedureRole =
EV (113942, DCM, “X-Ray
Reading Device”)
IFF Image Object is
created for this irradiation
event
Content Item Descriptions
Row 4
The device which read the detector of this Irradiation Event. E.g. the CR Plate Reader.
Row 5
Reference to Image instances created during this event, if any. The UID reference(s) provided here shall
be the values at the time the images were initially created. (Note that image UIDs may be changed as the
images are managed over a long term.)
TID 10003b
Irradiation Event X-Ray Source Data
This template contains data which is expected to be available to the X-Ray source component of the
equipment.
Page 4
TID 10003b
IRRADIATION EVENT X-RAY SOURCE DATA
Type: Extensible
Order: Non-Significant
NL Rel with VT
Parent
Concept Name VM Req Condition
Type
Value Set Constraint
1
NUM
EV (113738, DCM,
“Dose (RP)”)
1
MC
IF TID (10001) Row 2 = Units = EV (Gy, UCUM,
(113704, DCM,
“Gy”)
“Projection X-Ray”) AND
any of the values of TID
(10001) Row 18 are not
(113858, DCM, “MPPS
Content”)
2
TEXT
EV (113780, DCM,
“Reference Point
Definition”)
1
MC
IF Row 1 is present and
Row 3 is not present
3
CODE
EV (113780, DCM,
“Reference Point
Definition”)
1
MC
IF Row 1 is present and
Row 2 is not present
4
NUM
EV (111631, DCM,
“Average Glandular
Dose”)
1
MC
IFF TID (10001) Row 2 = Units = EV (mGy, UCUM,
(P5-40010, SRT,
“mGy”
“Mammography”)
5
CODE
EV (113732, DCM,
“Fluoro Mode”)
1
UC
DCID (10004) Fluoro Modes
IFF TID (10003) Row 7
value = (P5-06000, SRT,
“Fluoroscopy”)
6
NUM
EV (113791, DCM,
“Pulse Rate”)
1
MC
IFF Row 5 value =
Units = EV ({pulse}/s,
(113631, DCM, “Pulsed”) UCUM, “pulse/s”)
7
NUM
EV (113768, DCM,
“Number of Pulses”)
1
MC
IFF Row 5 is not present Units = EV (1, UCUM, “no
or Row 5 is present and units”)
equals (113631, DCM,
“Pulsed”)
EV (121401, DCM,
“Derivation”)
1
MC
IFF count of pulses in
Row 7 is estimated
1-n
U
Units = EV (ms, UCUM,
“ms”)
1
U
Units = EV (s, UCUM, “s”)
Units = EV (kV, UCUM,
“kV”)
8
>
CODE
HAS
CONCEPT
MOD
DCID (10025) Radiation
Dose Reference Points
EV (R-10260, SRT,
“Estimated”)
9
NUM
EV (113793, DCM,
“Pulse Width”)
10
NUM
EV (113742, DCM,
“Irradiation Duration”)
11
NUM
EV (113733, DCM,
“KVP”)
1-n
M
12
NUM
EV (113734, DCM,
“X-Ray Tube
Current”)
1-n
MC
13
NUM
EV (113767, DCM,
“Average X-Ray
Tube Current”)
1
U
14
NUM
EV (113824, DCM,
“Exposure Time”)
1
MC
IF Row 15 is not present Units = EV (ms, UCUM,
“ms”)
15
NUM
EV (113736, DCM,
“Exposure”)
1-n
MC
IF Row 12 and 14 are not Units = EV (uAs, UCUM,
present
“uAs”)
16
NUM
EV (113766, DCM,
“Focal Spot Size”)
1
U
Units = EV (mm, UCUM,
“mm”)
17
CODE
EV (111632, DCM,
“Anode Target
Material”
1
U
DCID (10016) Anode Target
Material
18
CONTAINER EV (113771, DCM,
“X-Ray Filters”)
1-n
U
IF Row 15 is not present Units = EV (mA, UCUM,
“mA”)
Units = EV (mA, UCUM,
“mA”)
19 >
CONTAINS CODE
EV (113772, DCM,
“X-Ray Filter Type”)
1
U
DCID (10007) X-Ray Filter
Types
20 >
CONTAINS CODE
EV (113757, DCM,
“X-Ray Filter
Material”)
1
U
DCID (10006) X-Ray Filter
Materials
21 >
CONTAINS NUM
EV (113758, DCM,
“X-Ray Filter
1
U
Units = EV (mm, UCUM,
“mm”)
Page 5
Thickness Minimum”)
22 >
CONTAINS NUM
EV (113773, DCM,
“X-Ray Filter
Thickness
Maximum”)
1
U
Units = EV (mm, UCUM,
“mm”)
23
NUM
EV (113790, DCM,
“Collimated Field
Area”
1
U
Units = EV (m2, UCUM,
“m^2”)
24
CODE
EV (111635,DCM,
“X-Ray Grid”)
1-n
U
DCID (10017) X-Ray Grid
25
INCLUDE
DTID (1021) Device
Participant
1
M
$DeviceProcedureRole =
EV (113859, DCM,
“Irradiating Device”)
Content Item Descriptions
Row 1
Dose applied by this irradiation event, relative to defined reference point.
Row 7
If a precise count of pulses is not available, an estimated number shall be provided, and the Row 8
Concept Modifier shall indicate “Estimated”
Row 9
Pulse width as measured/recorded by the system, either as a single total value, or as multiple values. If
multiple values are provided, their number shall match the value in Row 7 “Number of Pulses”.
Row 11
KVP value as measured/recorded by system, either as a single mean value, or as multiple values. If
multiple values are provided, their number shall match the value in Row 7 “Number of Pulses”.
Row 12
Tube current as measured/recorded by system, either as a single mean value, or as multiple values. If
multiple values are provided, their number shall match the value in Row 7 “Number of Pulses”.
Row 14
Exposure time as measured/recorded by the system.
Row 15
Exposure as measured/recorded by system, either as a single total value, or as multiple values. If multiple
values are provided, their number shall match the value in Row 7 “Number of Pulses”. The Exposure will be
affected by the shape of the pulse and other factors, and may not be a simple multiplication of tube current
and exposure time.
Row 18
If one or more Filter(s) were applied during this irradiation event
Row 23
Collimated area at the receptor plane.
Row 25
The device which produced the irradiation in this Irradiation Event. I.e. the X-Ray source.
This is not required to be present if the information is the same as that already recorded in the Device
Observer Context (TID 1004) encoded via the inclusion of Observer Context (TID 1002) in TID 10001 Row
5, which in turn may be absent if identical to the content in the Enhanced General Equipment Module.
TID 10003c
Irradiation Event X-Ray Mechanical Data
This template contains data which is expected to be available to the gantry or mechanical component of
the equipment.
TID 10003c
IRRADIATION EVENT X-RAY MECHANICAL DATA
Type: Extensible
Order: Non-Significant
NL Rel with VT
Parent
Concept Name VM Req Condition
Type
Value Set Constraint
1
CODE
EV (113956, DCM,
“CR/DR Mechanical
Configuration”)
1
U
2
NUM
EV (112011, DCM,
“Positioner Primary
Angle”)
1
UC
XOR Row 6
Units = EV (deg, UCUM,
“deg”)
3
NUM
EV ( 112012, DCM,
“Positioner
Secondary Angle”)
1
UC
XOR Row 6
Units = EV (deg, UCUM,
“deg”)
4
NUM
EV (113739, DCM,
“Positioner Primary
End Angle”
1
UC
IFF TID (10003) Row 7
value = (113613, DCM,
“Rotational Acquisition”)
Units = EV (deg, UCUM,
“deg”)
5
NUM
EV (113740, DCM,
“Positioner
Secondary End
1
UC
IFF TID (10003) Row 7
value = (113613, DCM,
Units = EV (deg, UCUM,
“deg”)
Page 6
DCID (10031) CR/DR
Mechanical Configuration
Angle”
“Rotational Acquisition”)
6
NUM
EV (113770, DCM,
“Column Angulation”)
1
UC
XOR Rows 2,3
7
NUM
EV (113754, DCM,
“Table Head Tilt
Angle”)
1
U
Units = EV (deg, UCUM,
“deg”)
8
NUM
EV (113755, DCM,
“Table Horizontal
Rotation Angle”)
1
U
Units = EV (deg, UCUM,
“deg”)
9
NUM
EV (113756, DCM,
“Table Cradle Tilt
Angle”)
1
U
Units = EV (deg, UCUM,
“deg”)
10
NUM
EV (111633, DCM,
“Compression
Thickness”)
1
U
Units = (mm, UCUM, “mm”)
11
NUM
DCID (10008) Dose
Related Distance
Measurements
1-n
U
Units = EV (mm, UCUM,
“mm”)
Units = EV (deg, UCUM,
“deg”)
Content Item Descriptions
Row 2
Angle in patient’s “equatorial” plane (LAO to RAO). For dynamically changing angle during the event, the
start value shall be provided. Equivalent to (0018,1510) in an image instance.
Row 3
Angle in patient’s “sagittal” plane (CRAN to CAUD). For dynamically changing angle during the event, the
start value shall be provided. Equivalent to (0018,1511) in an image instance.
Row 4
In case of motion during irradiation event, Positioner Primary ending angle
Row 5
In case of motion during irradiation event., Positioner Secondary ending angle
Row 6
Column device Angle in equipment based coordinates
Amend templates in PS 3.16:
TID 10004
Accumulated Projection X-Ray Dose
This general template provides detailed information on projection X-Ray dose value accumulations over
several irradiation events from the same equipment (typically a study or a performed procedure step).
TID 10004
ACCUMULATED PROJECTION X-RAY DOSE
Type: Extensible
Order: Significant
NL Rel with VT
Parent
Concept Name VM Req Condition
Type
Value Set Constraint
Units = EV (Gy.m2, UCUM,
“Gy.m2”)
1
NUM
EV (113722, DCM,
“Dose Area Product
Total”)
1
M
2
NUM
EV (113725, DCM,
“Dose (RP) Total”)
1
MC
IF any of the values of
TID (10001) Row 18 are
not (113858, DCM,
“MPPS Content”). May
be present otherwise.
3
NUM
EV (113726, DCM,
“Fluoro Dose Area
Product Total”)
1
MC
IFF TID(10003) Row 7
Units = EV (Gy.m2, UCUM,
value = (P5-06000, SRT, “Gy.m2”)
“Fluoroscopy”) for at least
one irradiation event
4
NUM
EV (113728, DCM,
“Fluoro Dose (RP)
Total”)
1
MC
IFF TID(10003) Row 7
Units = EV (Gy, UCUM,
value = (P5-06000, SRT, “Gy”)
“Fluoroscopy”) for at least
one irradiation event AND
any of the values of TID
(10001) Row 18 are not
Page 7
Units = EV (Gy, UCUM,
“Gy”)
(113858, DCM, “MPPS
Content”).
5
NUM
EV (113730, DCM,
“Total Fluoro Time”)
1
MC
Units = EV (s, UCUM, “s”)
IFF TID(10003) Row 7
value = (P5-06000, SRT,
“Fluoroscopy”) for at least
one irradiation event.
6
NUM
EV (113727, DCM,
“Acquisition Dose
Area Product
Total”)
1
MC
IF any of the values of
TID (10001) Row 18 are
not (113858, DCM,
“MPPS Content”).
Units = EV (Gy.m2, UCUM,
“Gy.m2”)
7
NUM
EV (113729, DCM,
“Acquisition Dose
(RP) Total”)
1
MC
IF any of the values of
TID (10001) Row 18 are
not (113858, DCM,
“MPPS Content”). May
be present otherwise.
Units = EV (Gy, UCUM,
“Gy”)
8
NUM
EV (113855, DCM,
“Total Acquisition
Time”)
1
MC
IF any of the values of
TID (10001) Row 18 are
not (113858, DCM,
“MPPS Content”).
Units = EV (s, UCUM, “s”)
9
NUM
EV (113731, DCM,
“Total Number of
Radiographic
Frames”)
1
U
10
CODE
EV (113780, DCM,
“Reference Point
Definition”)
1
MC
IF Row 2, Row 4 or Row
7 is present and Row 11
is not present.
11
TEXT
EV (113780, DCM,
“Reference Point
Definition”)
1
MC
IF Row 2, Row 4 or Row
7 is present and Row 10
is not present.
Units = EV (1, UCUM, “no
units”)
DCID (10025) Radiation
Dose Reference Points
Content Item Descriptions
Row 1
Sum of acquisition and fluoroscopy
Row 2
Sum of acquisition and fluoroscopy, relative to reference point.
Rows 3-5
Fluoroscopic component only
Rows 6-8
Acquisition component only
Row 10
A coded definition of the Reference Point (RP) used for RP-related dose values.
Row 11
A text definition of the Reference Point (RP) used for RP-related dose values.
Page 8