DICOM PS3.17 2019a - Explanatory Information

JJJJ.5.2 Examples For Material Quantification Image Family:

JJJJ.5.2.1 Example Switching Source Integrating Detector

This example shows a Material Specific image acquired on an acquisition device with single switching sources and integrating detector.

Table JJJJ.5.2.1-1. CT Image Module Attributes

Attribute Name

Tag

Values

Image Type

(0008,0008)

ORIGINAL\PRIMARY\AXIAL\MAT_SPECIFIC

Multi-energy CT Acquisition

(0018,9361)

YES

Rescale Intercept

(0028,1052)

0

Rescale Slope

(0028,1053)

1

Rescale Type

(0028,1054)

10^-2 MGML

KVP

(0018,0060)

{null value because it is described below}

Single Collimation Width

(0018,9306)

0.625

Total Collimation Width

(0018,9307)

80.0

Include Table 10-27 “RT Equipment Correlation Macro Attributes Description” in PS3.3



Table JJJJ.5.2.1-3. Multi-energy CT X-Ray Source Macro Attributes

Attribute Name

Tag

Values

Multi-energy CT X-Ray Source Sequence

(0018,9365)

ITEM 1

>X-Ray Source Index

(0018,9366)

1

>X-Ray Source ID

(0018,9367)

Tube A

>Multi-energy Source Technique

(0018,9368)

SWITCHING_SOURCE

>Source Start DateTime

(0018,9369)

2018.05.01 13:22:03

>Source End DateTime

(0018,936A)

2018.05.01 13:22:20

>Switching Phase Number

(0018,936B)

1

>Switching Phase Nominal Duration

(0018,936C)

100

>Switching Phase Transition Duration

(0018,936D)

10

>Generator Power

(0018,1170)

120

ITEM 2

>X-Ray Source Index

(0018,9366)

2

>X-Ray Source ID

(0018,9367)

Tube A

>Multi-energy Source Technique

(0018,9368)

SWITCHING_SOURCE

>Source Start DateTime

(0018,9369)

2018.05.01 13:22:03

>Source End DateTime

(0018,936A)

2018.05.01 13:22:20

>Switching Phase Number

(0018,936B)

2

>Switching Phase Nominal Duration

(0018,936C)

100

>Switching Phase Transition Duration

(0018,936D)

10

>Generator Power

(0018,1170)

100


Table JJJJ.5.2.1-4. Multi-energy CT X-Ray Detector Macro Attributes

Attribute Name

Tag

Values

Multi-energy CT X-Ray Detector Sequence

(0018,936F)

ITEM 1

>X-Ray Detector Index

(0018,9370)

1

>X-Ray Detector ID

(0018,9371)

Detector A

>Multi-energy Detector Type

(0018,9372)

INTEGRATING


Table JJJJ.5.2.1-5. Multi-energy CT Path Macro Attributes

Attribute Name

Tag

Values

Multi-energy CT Path Sequence

(0018,9379)

ITEM 1

>Multi-energy CT Path Index

(0018,937A)

1

>X-Ray Source Index

(0018,9366)

1

>X-Ray Detector Index

(0018,9370)

1

ITEM 2

>Multi-energy CT Path Index

(0018,937A)

2

>X-Ray Source Index

(0018,9366)

2

>X-Ray Detector Index

(0018,9370)

1


Table JJJJ.5.2.1-6. CT Exposure Macro Attributes

Attribute Name

Tag

Values

CT Exposure Sequence

(0018,9321)

ITEM 1

>Referenced X-Ray Source Index

(0018,9377)

1\2

>Exposure Time in ms

(0018,9328)

500

>X-Ray Tube Current in mA

(0018,9330)

300

>Exposure in mAs

(0018,9332)

150

>Exposure Modulation Type

(0018,9323)

NONE

>CTDIvol

(0018,9345)

10


Table JJJJ.5.2.1-7. CT X-Ray Details Sequence Macro Attributes

Attribute Name

Tag

Values

CT X-Ray Details Sequence

(0018,9325)

ITEM 1

>Referenced Path Index

(0018,9378)

1

>KVP

(0018,0060)

80

>Focal Spot(s)

(0018,1190)

0.5\0.5

>Filter Type

(0018,1160)

NONE

ITEM 2

>Referenced Path Index

(0018,9378)

2

>KVP

(0018,0060)

140

>Focal Spot(s)

(0018,1190)

0.5\0.5

>Filter Type

(0018,1160)

NONE


Table JJJJ.5.2.1-8. CT Acquisition Details Macro Attributes

Attribute Name

Tag

Values

CT Acquisition Details Sequence

(0018,9304)

ITEM 1

>Referenced Path Index

(0018,9378)

1\2

>Rotation Direction

(0018,1140)

CW

>Revolution Time

(0018,9305)

0.5

>Single Collimation Width

(0018,9306)

0.625

>Total Collimation Width

(0018,9307)

80.0

>Table Height

(0018,1130)

88.5

>Gantry/Detector Tilt

(0018,1120)

0

>Data Collection Diameter

(0018,0090)

500


Table JJJJ.5.2.1-9. CT Geometry Macro Attributes

Attribute Name

Tag

Values

CT Geometry Sequence

(0018,9312)

ITEM 1

>Referenced Path Index

(0018,9378)

1\2

>Distance Source to Detector

(0018,1110)

1140

>Distance Source to Data Collection Center

(0018,9335)

570


Table JJJJ.5.2.1-10. Multi-energy CT Processing Attributes

Attribute Name

Tag

Values

Decomposition Method

(0018,937E)

PROJECTION_BASED

Decomposition Material Sequence

(0018,9381)

ITEM 1

>Material Code Sequence

(0018,937D)

>>Include Table 8.8-1 “Code Sequence Macro Attributes” in PS3.3

(C-10120, SRT, "Water")

ITEM 2

>Material Code Sequence

(0018,937D)

>>Include Table 8.8-1 “Code Sequence Macro Attributes” in PS3.3

(C-11400, SRT, "Iodine")


DICOM PS3.17 2019a - Explanatory Information