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DICOM PS3.3 2020a - Information Object Definitions​

C.11.6.1.2 Presentation LUT Shape​

A value of INVERSE shall mean the same as a value of IDENTITY, except that the minimum output value shall convey the meaning​ of the maximum available luminance, and the maximum value shall convey the minimum available luminance. In other words:​

•​P-Value = maximum value - output value​

C.11.7 Overlay Activation Module​

This Module defines a manner of controlling whether or not bit-mapped overlay and curve information are displayed.​

If the corresponding Overlay Group activated is present within the Presentation State, then that Overlay shall be activated and any​ corresponding Overlay in the referenced image(s) ignored, otherwise the Overlay within the referenced image(s) shall be activated.​

An Overlay Group referenced in the Bitmap Display Shutter Module described in Section C.7.6.15 shall not be activated using the​ Overlay Activation Module.​

Table C.11.7-1 specifies the Attributes that describe the Overlay Activation Module.​

Table C.11.7-1. Overlay Activation Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Overlay Activation Layer​

(60xx,1001)​

2C​

Thelayer(definedinGraphicLayer(0070,0002)oftheGraphicLayerModule​

 

 

 

in which the Overlay described in group 60xx shall be displayed. If no layer​

 

 

 

is specified (zero length) then the overlay shall not be displayed.​

 

 

 

Required if Group 60xx is present in the referenced image(s) or the​

 

 

 

Presentation State instance containing this Module.​

Note​

 

 

 

1.​Previously, those bits that are stored in Pixel Data (7FE0,0010) above High Bit (0028,0102) could be used as overlay​ bitplanesiftheywerereferencedbyanOverlayBitPosition(60xx,0102).Thisusagehasbeenretired.SeePS3.3-2004.​ Their contents are unspecified in DICOM and should not be displayed. Usually they will be zero, though if the pixel data​ is signed, i.e., Pixel Representation (0028,0103) is0001H, then it is possible that the sign bit maybe "extended" through​ these values. Alternatively, they may have been "masked off" even if the value is signed and negative.​

2.​Previously,CurveActivationLayer(50xx,1001)wasdefinedinthisModule.Itsusagehasbeenretired.SeePS3.3-2004.​

C.11.8 Softcopy VOI LUT Module​

Table C.11.8-1 specifies the Attributes that describe the Softcopy VOI LUT. These Attributes have the same meaning and behavior​ as defined in the Section C.11.2 VOI LUT Module.​

Table C.11.8-1. Softcopy VOI LUT Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Softcopy VOI LUT​

(0028,3110)​

1​

DefinesaSequenceofVOILUTsorWindowCentersandWidths​

Sequence​

 

 

and to which images and frames they apply.​

 

 

 

No more than one VOI LUT Sequence containing a single Item​

 

 

 

or one pair of Window Center/Width values shall be specified for​

 

 

 

each image or frame.​

 

 

 

One or more Items shall be included in this Sequence.​

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Attribute Name​

Tag​

Type​

>Referenced Image​

(0008,1140)​

1C​

Sequence​

 

 

>>Include Table 10-3 “Image SOP Instance Reference Macro​ Attributes”​

>Include Table C.11-2b “VOI LUT Macro Attributes”​

C.11.9 Presentation Series Module​

Attribute Description​

ThesubsetofimagesandframeslistedinthePresentationState​ Relationship Module, to which this VOI LUT or Window Center​ and Width applies.​

One or more Items shall be included in this Sequence.​

Required if the VOI LUT transformation in this Item does not​ applytoalltheimagesandframeslistedinthePresentationState​ Relationship Module.​

Table C.11.9-1 contains Attributes that identify and describe a Presentation Series.​

Table C.11.9-1. Presentation Series Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Modality​

(0008,0060)​

1​

Type of equipment that originally acquired the data.​

 

 

 

Enumerated Values:​

 

 

 

PR​Presentation State​

 

 

 

See Section C.7.3.1.1.1.​

Note​

 

 

 

This implies that presentation states will be in different Series from the images to which they apply, which will have different​ values for Modality.​

C.11.10 Presentation State Identification Module​

Table C.11.10-1 contains Attributes that identify a Presentation State.​

Table C.11.10-1. Presentation State Identification Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Presentation Creation​

(0070,0082)​

1​

Date on which this presentation was created.​

Date​

 

 

Note​

 

 

 

This date may be different from the date that the DICOM SOP​ Instancewascreated,sincethepresentationstateinformation​ contained may have been recorded earlier.​

Presentation Creation​ (0070,0083)​ 1​ Time at which this presentation was created.​

Time​

Note​

This time may be different from the time that the DICOM SOP​ Instancewascreated,sincethepresentationstateinformation​ contained may have been recorded earlier.​

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DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

IncludeTable10-12“ContentIdentificationMacroAttributes”​

Note​

The Content Label value may be used by an application as a​ Defined Term in order to imply some grouping of different​ presentation states, i.e., it may have the same value for​ differentpresentationstateinstancesthatsharesomecommon​ concept.​

C.11.11 Presentation State Relationship Module​

Table C.11.11-1 contains Attributes that describe the images to which a Presentation State applies.​

Table C.11.11-1. Presentation State Relationship Module Attributes​

Attribute Name​ Tag​ Type​ Attribute Description​

Include Table C.11.11-1b “Presentation State Relationship Macro Attributes”​

Table C.11.11-1b. Presentation State Relationship Macro Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Referenced Series​

(0008,1115)​

1​

SequenceofItemswhereeachItemincludestheAttributesofoneSeries​

Sequence​

 

 

to which the Presentation applies.​

 

 

 

One or more Items shall be included in this Sequence.​

>Series Instance UID​

(0020,000E)​

1​

Unique identifier of a Series that is part of the Study defined by the​

 

 

 

Study Instance UID (0020,000D) in the enclosing Data Set.​

 

 

 

Note​

 

 

 

The Study Instance UID (0020,000D) value will be that of the​

 

 

 

presentation state itself, unless the Macro is invoked from​

 

 

 

Blending Sequence (0070,0402) in the Presentation State​

 

 

 

Blending Module, in which case it will be explicitly specified.​

>Referenced Image​

(0008,1140)​

1​

The set of images and frames to which the Presentation applies. These​

Sequence​

 

 

shall be of the Study defined by Study Instance UID (0020,000D) and​

 

 

 

the Series defined by Series Instance UID (0020,000E).​

One or more Items shall be included in this Sequence.​

The referenced SOP Class shall be the same for all Images in any Item​ of this Referenced Series Sequence (0008,1115).​

>>IncludeTable10-3“ImageSOPInstanceReferenceMacro​ Attributes”​

C.11.12 Presentation State Shutter Module​

Table C.11.12-1 contains Attributes that specialize Attributes in other Modules included in a Presentation State.​

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Table C.11.12-1. Presentation State Shutter Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Shutter Presentation​

(0018,1622)​

1C​

A single grayscale unsigned value used to replace those parts of the image​

Value​

 

 

occluded by the shutter, when rendered on a monochrome display. The units are​

 

 

 

specified in P-Values.​

 

 

 

Required if the Display Shutter Module or Bitmap Display Shutter Module is​

 

 

 

present.​

 

 

 

Note​

 

 

 

The requirement in this Module is type 1C, which overrides the type 3​

 

 

 

in the Display Shutter Module.​

Shutter Presentation​

(0018,1624)​

1C​

A color triplet value used to replace those parts of the image occluded by the​

Color CIELab Value​

 

 

shutter,whenrenderedonacolordisplay.TheunitsarespecifiedinPCS-Values,​

 

 

 

and the value is encoded as CIELab. See Section C.10.7.1.1.​

RequirediftheDisplayShutterModuleorBitmapDisplayShutterModuleispresent​ and the SOP Class is other than Grayscale Softcopy Presentation State Storage.​

Note​

The requirement in this Module is type 1C, which overrides the type 3​ in the Display Shutter Module and Bitmap Display Shutter Module.​

C.11.13 Presentation State Mask Module​

Table C.11.13-1 contains Attributes that specialize the use of masks in a Presentation State.​

Table C.11.13-1. Presentation State Mask Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Mask Subtraction​

(0028,6100)​

1C​

Required if Mask Module is present.​

Sequence​

 

 

Only a single Item shall be included in this Sequence.​

 

 

 

Applicable Frame Range (0028,6102) shall not be included in the Sequence Item.​

See Section C.7.6.10 for a complete definition of the Attributes in the Items of this​ Sequence other than Mask Operation (0028,6101) and Applicable Frame Range​ (0028,6102).​

Note​

1.​This Sequence is replicated here in order to specify one Item,​ additional conditions on Mask Operation (0028,6101) and to forbid​ Applicable Frame Range (0028,6102).​

2.​The role of Applicable Frame Range (0028,6102) is replaced by​ Referenced Frame Number (0008,1160).​

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DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>Mask Operation​

(0028,6101)​

1​

Type of mask operation to be performed​

 

 

 

Enumerated Values:​

 

 

 

AVG_SUB​

 

 

 

TID​

 

 

 

See Section C.7.6.10.1 for further explanation.​

 

 

 

Note​

 

 

 

TherequirementinthisModuleisforEnumeratedValues,whichoverrides​

 

 

 

the requirements of the Mask Module.​

>Contrast Frame​

(0028,6112)​

1C​

Specified the number of contrast frames to average together before performing​

Averaging​

 

 

the mask operation.​

 

 

 

RequiredifMaskFrameNumbers(0028,6110)specifiesmorethanoneframe(i.e.,​

 

 

 

is multi-valued).​

 

 

 

Note​

 

 

 

The requirement in this Module is conditional and overrides the optional​

 

 

 

requirements of the Mask Module.​

Recommended​

(0028,1090)​

1C​

Specifies the recommended viewing protocol(s).​

Viewing Mode​

Enumerated Values:​

SUB​for subtraction with mask images​

Required if Mask Subtraction Sequence (0028,6100) is present.​

Note​

TherequirementsinthisModulearetype1CandaspecifiedEnumerated​

Value, which override the requirements of the Mask Module.​

C.11.14 Presentation State Blending Module​

Table C.11.14-1 contains Attributes that describe the identification of two sets of grayscale images and the grayscale transformations​ to be applied to them, for the purpose of blending.​

Table C.11.14-1. Presentation State Blending Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Blending Sequence​

(0070,0402)​

1​

A Sequence of Items, one identifying and describing​

 

 

 

transformations upon a set of underlying grayscale images, and​

 

 

 

the other identifying and describing transformations upon a set of​

 

 

 

superimposed grayscale images.​

 

 

 

Two Items shall be included in this Sequence​

 

 

 

See Section C.11.14.1.1.​

>Blending Position​

(0070,0405)​

1​

Whether or not the contents of the Item represent the​

 

 

 

superimposed or underlying image set.​

Enumerated Values:​

SUPERIMPOSED​

UNDERLYING​

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