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Page 766​

DICOM PS3.17 2020a - Explanatory Information​

Attribute Name​

Tag​

Comment​

>Cropping Specification Number​

(0070,1309)​

Set to 2​

>Volume Cropping Method​

(0070,1302)​

Set to INCLUDE_SEG​

>Referenced Image Sequence​

(0008,1140)​

Reference to Tumor segment​

Item #3​

 

 

>Cropping Specification Number​

(0070,1309)​

Set to 3​

>Volume Cropping Method​

(0070,1302)​

Set to INCLUDE_SEG​

>Referenced Image Sequence​

(0008,1140)​

Reference to Hepatic arteries segment​

Item #4​

 

 

>Cropping Specification Number​

(0070,1309)​

Set to 4​

>Volume Cropping Method​

(0070,1302)​

Set to INCLUDE_SEG​

>Referenced Image Sequence​

(0008,1140)​

Reference to Hepatic veins segment​

Item #5​

 

 

>Cropping Specification Number​

(0070,1309)​

Set to 5​

>Volume Cropping Method​

(0070,1302)​

Set to INCLUDE_SEG​

>Referenced Image Sequence​

(0008,1140)​

Reference to Portal vein segment​

XXX.3.12.3.3 Volume Cropping Module Recommendations​

Table XXX.3.12.3.3-1. Volume Cropping Module Recommendations​

Attribute Name​

Tag​

Comment​

Render Projection​

(0070,1602)​

Set to ORTHOGRAPHIC​

Viewpoint Position​

(0070,1603)​

Viewpoint specifies an oblique right-anterior view​

Viewpoint Look At Point​

(0070,1604)​

 

Viewpoint Up Direction​

(0070,1605)​

 

Render Field of View​

(0070,1606)​

Field of view covers the entire range of the scan.​

Rendering Method​

(0070,120D)​

Set to VOLUME_RENDERED​

XXX.3.12.3.4 Render Shading Module Recommendations​

 

Table XXX.3.12.3.4-1. Render Shading Module Recommendations​

Attribute Name​

Tag​

Comment​

Shading Style​

(0070,1701)​

Set to DOUBLESIDED​

Ambient Reflection Intensity​

(0070,1702)​

Set to 0.1​

XXX.3.12.3.5 Render Display Module Recommendations​

 

Table XXX.3.12.3.5-1. Render Display Module Recommendations​

Attribute Name​

Tag​

Comment​

Pixel Presentation​

(0008,9205)​

Set to TRUE_COLOR​

Volume Stream Sequence​

(0070,1A08)​

 

Item #1 of Volume Stream Sequence​

 

 

>Volumetric Presentation Input Set UID​

(0070,1209)​

Set to UID1​

- Standard -​

DICOM PS3.17 2020a - Explanatory Information​

Page 767​

Attribute Name​

Tag​

Comment​

>Presentation State Classification Component​

(0070,1801)​

 

Sequence​

 

 

>Item #1 of Presentation State Classification Component Sequence​

 

>>RGBA Transfer Function Description​

(0070,1A09)​

Set to "Liver, semi-opaque"​

>>Component Type​

(0070,1802)​

Set to ONE_TO_RGBA​

>>Component Input Sequence​

(0070,1803)​

 

>>> Volumetric Presentation Input Index​

(0070,1804)​

Set to 1​

>>RGB LUT Transfer Function​

(0028,140F)​

TABLE​

>>Alpha LUT Transfer Function​

(0028,1410)​

TABLE​

>>Red, Green, Blue Palette Color Lookup Table Descriptors and Data​

Orange tint​

>>Alpha Palette Color Lookup Table Descriptor and Data​

 

Semi-transparent across liver​

 

 

H.U.range​

>Item #2 of Presentation State Classification Component Sequence​

 

>>RGBA Transfer Function Description​

(0070,1A09)​

Set to "Tumor mass, solid"​

>>Component Type​

(0070,1802)​

Set to ONE_TO_RGBA​

>>Component Input Sequence​

(0070,1803)​

 

>>> Volumetric Presentation Input Index​

(0070,1804)​

Set to 2​

>>RGB LUT Transfer Function​

(0028,140F)​

TABLE​

>>Alpha LUT Transfer Function​

(0028,1410)​

NONE​

>>Red, Green, Blue Palette Color Lookup Table Descriptors and Data​

Yellow tints​

>Item #3 of Presentation State Classification Component Sequence​

 

>>RGBA Transfer Function Description​

(0070,1A09)​

Set to "Contrast-enhanced vessels,​

 

 

red"​

>>Component Type​

(0070,1802)​

Set to ONE_TO_RGBA​

>>Component Input Sequence​

(0070,1803)​

 

>>> Volumetric Presentation Input Index​

(0070,1804)​

Set to 3​

>>RGB LUT Transfer Function​

(0028,140F)​

TABLE​

>>Alpha LUT Transfer Function​

(0028,1410)​

NONE​

>>Red, Green, Blue Palette Color Lookup Table Descriptors and Data​

Red tints​

Item #2 of Volume Stream Sequence​

 

 

>Volumetric Presentation Input Set UID​

(0070,1209)​

Set to UID2​

>Presentation State Classification Component​

(0070,1801)​

 

Sequence​

 

 

>Item #1 of Presentation State Classification Component Sequence​

 

>>RGBA Transfer Function Description​

(0070,1A09)​

Set to "Contrast-enhanced vessels,​

 

 

blue"​

>>Component Type​

(0070,1802)​

Set to ONE_TO_RGBA​

>>Component Input Sequence​

(0070,1803)​

 

>>>Volumetric Presentation Input Index​

(0070,1804)​

Set to 4​

>>RGB LUT Transfer Function​

(0028,140F)​

TABLE​

>>Alpha LUT Transfer Function​

(0028,1410)​

NONE​

>>Red, Green, Blue Palette Color Lookup Table Descriptors and Data​

Blue tints​

>Item #2 of Presentation State Classification Component Sequence​

 

- Standard -​

Page 768​

DICOM PS3.17 2020a - Explanatory Information​

 

Attribute Name​

 

Tag​

Comment​

>>RGBA Transfer Function Description​

(0070,1A09)​

Set to "Contrast-enhanced vessels,​

 

 

 

orange"​

>>Component Type​

 

(0070,1802)​

Set to ONE_TO_RGBA​

>>Component Input Sequence​

 

(0070,1803)​

 

>>>Volumetric Presentation Input Index​

(0070,1804)​

Set to 5​

>>RGB LUT Transfer Function​

 

(0028,140F)​

TABLE​

>>Alpha LUT Transfer Function​

 

(0028,1410)​

NONE​

>>Red, Green, Blue Palette Color Lookup Table Descriptors and Data​

Orange tints​

PresentationStateCompositorComponentSequence​

(0070,1805)​

 

Item #1​

 

 

 

>Weighting Transfer Function Sequence​

(0070,1806)​

Specify tables that give equal weight​

 

 

 

to both volumes​

ICC Profile​

 

(0028,2000)​

Value corresponding to IEC​

 

 

 

61966-2-1:1999​

Color Space​

 

(0028,2002)​

Set to SRGB​

XXX.4 Uses of Presentation View Description in the Identification Module​

XXX.4.1 Hanging Protocols​

A Hanging Protocol Instance could select a set of orthogonal MPRs by use of the Image Sets Sequence (0072,0020).​

Table XXX.4.1-1. Hanging Protocol Image Set Sequence Recommendations​

Attribute Name​

Tag​

Comment​

Image Sets Sequence​

(0072,0020)​

 

>Image Set Selector Sequence​

(0072,0022)​

 

>>Image Set Selector Usage Flag​

(0072,0024)​

Set to "MATCH"​

>>Selector Attribute​

(0072,0026)​

Set to "0008,0016", the SOP Class UID Attribute Tag​

>>Selector Attribute VR​

(0072,0050)​

Set to "UI", the SOP Class UID Attribute VR​

>>Selector UI Value[i]​

(0072,XXXX)​

Set to "1.2.840.10008.5.1.4.1.1.11.6", SOP Class UID​

 

 

of the Planar MPR VPS SOP Class​

>>Image Set Selector Usage Flag​

(0072,0024)​

Set to "MATCH"​

>>Selector Attribute​

(0072,0026)​

Set to "0054,0220", the View Code Sequence Attribute​

 

 

Tag​

>>Selector Attribute VR​

(0072,0050)​

Set to "SQ", the View Code Sequence Attribute VR​

>>Selector Code Value​

(0072,0080)​

Set to (81654009, SCT, "Coronal")​

>>Image Set Number​

(0072,0032)​

Set to "1" for Image Set 1​

>>Image Set Selector Usage Flag​

(0072,0024)​

Set to "MATCH"​

>>Selector Attribute​

(0072,0026)​

Set to "0008,0016", the SOP Class UID Attribute Tag​

>>Selector Attribute VR​

(0072,0050)​

Set to "UI", the SOP Class UID Attribute VR​

>>Selector UI Value​

(0072,XXXX)​

Set to "1.2.840.10008.5.1.4.1.1.11.6", SOP Class UID​

 

 

of the Planar MPR VPS SOP Class​

>>Image Set Selector Usage Flag​

(0072,0024)​

Set to "MATCH"​

>>Selector Attribute​

(0072,0026)​

Set to "0054,0220", the View Code Sequence Attribute​

 

 

Tag​

- Standard -​

 

DICOM PS3.17 2020a - Explanatory Information​

Page 769​

Attribute Name​

Tag​

Comment​

 

>>Selector Attribute VR​

(0072,0050)​

Set to "SQ", the View Code Sequence Attribute VR​

>>Selector Code Value​

(0072,0080)​

Set to (30730003, SCT, "Sagittal")​

 

>>Image Set Number​

(0072,0032)​

Set to "2" for Image Set 2​

 

>>Image Set Selector Usage Flag​

(0072,0024)​

Set to "MATCH"​

 

>>Selector Attribute​

(0072,0026)​

Set to "0008,0016", the SOP Class UID Attribute Tag​

>>Selector Attribute VR​

(0072,0050)​

Set to "UI", the SOP Class UID Attribute VR​

>>Selector UI Value​

(0072,XXXX)​

Set to "1.2.840.10008.5.1.4.1.1.11.6", SOP Class UID​

 

 

of the Planar MPR VPS SOP Class​

 

>>Image Set Selector Usage Flag​

(0072,0024)​

Set to "MATCH"​

 

>>Selector Attribute​

(0072,0026)​

Set to "0054,0220", the View Code Sequence Attribute​

 

 

Tag​

 

>>Selector Attribute VR​

(0072,0050)​

Set to "SQ", the View Code Sequence Attribute VR​

>>Selector Code Value​

(0072,0080)​

Set to (62824007, SCT, "Transverse")​

 

>>Image Set Number​

(0072,0032)​

Set to "3" for Image Set 3​

 

ThedisplayapplicationwouldlookforthreePlanarMPRVolumetricPresentationStates-oneCoronal,oneSagittalandoneTransverse​ - and associate them with Image Sets in the view.​

XXX.4.2 Structured Displays​

AStructuredDisplayInstancecouldselectasetofoneormoreVolumetricPresentationStatesbydefininganimageboxwhoseImage​ Box Layout Type (0072,0304) has a Value of "VOLUME_VIEW" or "VOLUME_CINE" and by specifying one or more Volumetric​ PresentationStatesusingtheReferencedPresentationStateSequence(seeTableC.11.17-1“StructuredDisplayImageBoxModule​ Attributes” in PS3.3).​

XXX.4.3 Ad Hoc Display Layout​

Layout could be accomplished in a display application by using the Presentation Display Collection UID (0070,1101) to identify the​ presentations to be displayed together, and the View Code Sequence (0054,0220) to determine which presentation to display in each​ displayslot.Thisrequiressomeclinicalcontextattheexamlevel,whichcanbeobtainedfromthesourceimages(forexample,Performed​ Protocol Code Sequence (0040,0260) ).​

XXX.5 Compositing and the Use of Weighting Transfer Functions​

TheRGBCompositordescribedinSectionFF.2.3.3.2“InternalStructureofRGBandRGBACompositorComponents”inPS3.4utilizes​ twoweightingtransferfunctionsofAlpha-1andAlpha-2tocontroltheCompositorFunction,allowingcompositingfunctionsthatwould​ notbepossibleifeachweightingfactorwerebasedonlyonthatinput'sAlphavalue.Theseweightingtransferfunctionsareimplemented​ as Weighting Look-Up Tables (LUTs). Several examples of the use of these Weighting LUTs are described in this section. The format​ of the examples is in the form of a graph whose horizontal axis is the Alpha-1 input value and whose vertical axis is the Alpha-2 input​ value. The Weight output value is represented as a gray level, where 0.0=black and 1.0=white.​

Section XXX.3 references these different weighting function styles from real clinical use cases.​

XXX.5.1 Fixed Proportional Compositing​

In this example, a fixed proportion (in this case 2/3) of RGB-1 is added to a fixed proportion (in this case 1/3) of RGB-2. Note that the​ weighting factors are independent of Alpha values in this case:​

- Standard -​

Page 770​

DICOM PS3.17 2020a - Explanatory Information​

 

 

Weight-1 Output

 

 

 

 

 

Weight-2 Output

 

 

2numBits-1

 

 

 

 

2numBits-1

 

 

 

 

 

 

 

 

 

 

 

 

 

Alpha-2 Input

 

 

 

 

Alpha-2 Input

 

 

 

 

 

0

 

 

 

 

0

 

 

 

 

 

0

Alpha-1 Input

2numBits-1

0

Alpha-1 Input

2numBits-1

Weight Output Scale

0.01.0

Figure XXX.5-1. Weighting LUTs for Fixed Proportional Composting​

XXX.5.2 Partially Transparent A Over B Compositing​

In this example, the Compositor Component performs a Porter-Duff "Partially Transparent A over B" compositing.​

 

 

Weight-1 Output

 

 

 

 

 

Weight-2 Output

 

 

2numBits-1

 

 

 

 

2numBits-1

 

 

 

 

 

 

 

 

 

 

 

 

 

Alpha-2 Input

 

 

 

 

Alpha-2 Input

 

 

 

 

 

0

 

 

 

 

0

 

 

 

 

 

0

Alpha-1 Input

2numBits-1

0

Alpha-1 Input

2numBits-1

Weight Output Scale

0.01.0

Figure XXX.5-2. Weighting LUTs for Partially Transparent A Over B Compositing​

XXX.5.3 Pass-through Compositing​

In this example, each channel's Alpha value becomes the weighting factor for that channel.​

 

 

Weight-1 Output

 

 

 

 

 

Weight-2 Output

 

 

2numBits-1

 

 

 

 

2numBits-1

 

 

 

 

 

 

 

 

 

 

 

 

 

Alpha-2 Input

 

 

 

 

Alpha-2 Input

 

 

 

 

 

0

 

 

 

 

0

 

 

 

 

 

0

Alpha-1 Input

2numBits-1

0

Alpha-1 Input

2numBits-1

Weight Output Scale

0.01.0

Figure XXX.5-3. Weighting LUTs for Pass-Through Compositing​

- Standard -​

Источник: https://studfile.net/preview/14585770/

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