A.33 Softcopy Presentation State Information Object Definitions
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## A.33 Softcopy Presentation State Information Object Definitions

### A.33.1 Grayscale Softcopy Presentation State IOD

#### A.33.1.1 Grayscale Softcopy Presentation State IOD Description

The Grayscale Softcopy Presentation State Information Object Definition (IOD) specifies information that may be used to present (display) images that are referenced from within the IOD.

It includes capabilities for specifying:

1. the output grayscale space in P-Values

2. grayscale contrast transformations including modality and VOI LUT

3. mask subtraction for multi-frame images

4. selection of the area of the image to display and whether to rotate or flip it

5. image and display relative annotations, including graphics, text and overlays

#### A.33.1.2 Grayscale Softcopy Presentation State IOD Module Table

Table A.33.1-1. Grayscale Softcopy Presentation State IOD Modules

IE | Module | Reference | Usage
--- | --- | --- | ---
Patient | Patient | C.7.1.1 | M
Clinical Trial Subject | C.7.1.3 | U
Study | General Study | C.7.2.1 | M
Patient Study | C.7.2.2 | U
Clinical Trial Study | C.7.2.3 | U
Series | General Series | C.7.3.1 | M
Clinical Trial Series | C.7.3.2 | U
Presentation Series | C.11.9 | M
Equipment | General Equipment | C.7.5.1 | M
Presentation State | Presentation State Identification | C.11.10 | M
Presentation State Relationship | C.11.11 | M
Presentation State Shutter | C.11.12 | M
Presentation State Mask | C.11.13 | M
Mask | C.7.6.10 | C - Required if the referenced image(s) are multi-frame and are to be subtracted
Display Shutter | C.7.6.11 | C - Required if a Display Shutter is to be applied to referenced image(s) and the Bitmap Display Shutter Module is not present
Bitmap Display Shutter | C.7.6.15 | C - Required if a Display Shutter is to be applied to referenced image(s) and the Display Shutter Module is not present
Overlay Plane | C.9.2 | C - Required if Overlay is to be applied to referenced image(s) or the Bitmap Display Shutter Module is present
Overlay Activation | C.11.7 | C - Required if referenced image contains overlay data that is to be displayed or Presentation State Instance contains Overlay data other than Bitmap Shutter
Displayed Area | C.10.4 | M
Graphic Annotation | C.10.5 | C - Required if Graphic Annotations are to be applied to referenced image(s)
Spatial Transformation | C.10.6 | C - Required if rotation or flipping are to be applied to referenced image(s)
Graphic Layer | C.10.7 | C - Required if Graphic Annotations or Overlays or Curves are to be applied to referenced image(s)
Graphic Group | C.10.11 | U
Modality LUT | C.11.1 | C - Required if a Modality LUT is to be applied to referenced image(s)
Softcopy VOI LUT | C.11.8 | C - Required if a VOI LUT is to be applied to referenced image(s)
Softcopy Presentation LUT | C.11.6 | M
SOP Common | C.12.1 | M

In the Grayscale Softcopy Presentation State IOD, the Presentation Series Module specializes some Attributes of the General Series Module, the Presentation State Mask Module specializes some Attributes of the Mask Module, and the Presentation State Shutter Module specializes some Attributes of the Bitmap Display Shutter and Display Shutter Modules.

### Note

1. Subtraction between different images is not supported.

2. The Mask Module condition implies that it need not be supported by an SCP that supports presentation states only for single frame image storage SOP Classes, or instances of multi-frame image Storage SOP Classes that contain only one frame.

3. The Display Shutter may be used to darken image areas that surround important information and exclude extraneous bright areas that increase glare and ambient lighting impairing image interpretation. For example, unexposed areas in a CR image might be obscured using the Display Shutter, rather than permanently replacing image pixels in those areas.

4. This IOD does not support the storage of a multi-frame overlay in the IOD itself, but does support selective activation of multi-frame overlays within the referenced images via the Overlay Activation Module.

### A.33.2 Color Softcopy Presentation State IOD

#### A.33.2.1 Color Softcopy Presentation State IOD Description

The Color Softcopy Presentation State Information Object Definition (IOD) specifies information that may be used to present (display) color images that are referenced from within the IOD.

It includes capabilities for specifying:

1. the output color space in PCS-Values

2. color transformations from device-dependent color to PCS-Values using an ICC profile

3. selection of the area of the image to display and whether to rotate or flip it

4. image and display relative annotations, including graphics, text and overlays

#### A.33.2.2 Color Softcopy Presentation State IOD Module Table

Table A.33.2-1. Color Softcopy Presentation State IOD Modules

IE | Module | Reference | Usage
--- | --- | --- | ---
Patient | Patient | C.7.1.1 | M
Clinical Trial Subject | C.7.1.3 | U
Study | General Study | C.7.2.1 | M
Patient Study | C.7.2.2 | U
Clinical Trial Study | C.7.2.3 | U
Series | General Series | C.7.3.1 | M
Clinical Trial Series | C.7.3.2 | U
Presentation Series | C.11.9 | M
Equipment | General Equipment | C.7.5.1 | M
Presentation State | Presentation State Identification | C.11.10 | M
Presentation State Relationship | C.11.11 | M
Presentation State Shutter | C.11.12 | M
Display Shutter | C.7.6.11 | C - Required if a Display Shutter is to be applied to referenced image(s) and the Bitmap Display Shutter Module is not present
Bitmap Display Shutter | C.7.6.15 | C - Required if a Display Shutter is to be applied to referenced image(s) and the Display Shutter Module is not present
Overlay Plane | C.9.2 | C - Required if Overlay is to be applied to referenced image(s) or the Bitmap Display Shutter Module is present
Overlay Activation | C.11.7 | C - Required if referenced image contains overlay data that is to be displayed or Presentation State Instance contains Overlay data other than Bitmap Shutter
Displayed Area | C.10.4 | M
Graphic Annotation | C.10.5 | C - Required if Graphic Annotations are to be applied to referenced image(s)
Spatial Transformation | C.10.6 | C - Required if rotation, flipping or magnification are to be applied to referenced image(s)
Graphic Layer | C.10.7 | C - Required if Graphic Annotations or Overlays or Curves are to be applied to referenced image(s)
Graphic Group | C.10.11 | U
ICC Profile | C.11.15 | M
SOP Common | C.12.1 | M

In the Color Softcopy Presentation State IOD, the Presentation Series Module specializes some Attributes of the General Series Module, and the Presentation State Relationship Module specializes some Attributes of the Bitmap Display Shutter and Display Shutter Modules.

### A.33.3 Pseudo-color Softcopy Presentation State IOD

#### A.33.3.1 Pseudo-color Softcopy Presentation State IOD Description

The Pseudo-Color Softcopy Presentation State Information Object Definition (IOD) specifies information that may be used to present (display) images that are referenced from within the IOD.

It includes capabilities for specifying:

1. the output color space in PCS-Values

2. grayscale contrast transformations including modality and VOI LUT

3. a color palette to map the transformed grayscale values into pseudo-color

4. mask subtraction for multi-frame images

5. selection of the area of the image to display and whether to rotate or flip it

6. image and display relative annotations, including graphics, text and overlays

#### A.33.3.2 Pseudo-color Softcopy Presentation State IOD Module Table

Table A.33.3-1. Pseudo-Color Softcopy Presentation State IOD Modules

IE | Module | Reference | Usage
--- | --- | --- | ---
Patient | Patient | C.7.1.1 | M
Clinical Trial Subject | C.7.1.3 | U
Study | General Study | C.7.2.1 | M
Patient Study | C.7.2.2 | U
Clinical Trial Study | C.7.2.3 | U
Series | General Series | C.7.3.1 | M
Clinical Trial Series | C.7.3.2 | U
Presentation Series | C.11.9 | M
Equipment | General Equipment | C.7.5.1 | M
Presentation State | Presentation State Identification | C.11.10 | M
Presentation State Relationship | C.11.11 | M
Presentation State Shutter | C.11.12 | M
Presentation State Mask | C.11.13 | M
Mask | C.7.6.10 | C - Required if the referenced image(s) are multi-frame and are to be subtracted
Display Shutter | C.7.6.11 | C - Required if a Display Shutter is to be applied to referenced image(s) and the Bitmap Display Shutter Module is not present
Bitmap Display Shutter | C.7.6.15 | C - Required if a Display Shutter is to be applied to referenced image(s) and the Display Shutter Module is not present
Overlay Plane | C.9.2 | C - Required if Overlay is to be applied to referenced image(s) or the Bitmap Display Shutter Module is present
Overlay Activation | C.11.7 | C - Required if referenced image contains overlay data that is to be displayed or Presentation State Instance contains Overlay data other than Bitmap Shutter
Displayed Area | C.10.4 | M
Graphic Annotation | C.10.5 | C - Required if Graphic Annotations are to be applied to referenced image(s)
Spatial Transformation | C.10.6 | C - Required if rotation or flipping are to be applied to referenced image(s)
Graphic Layer | C.10.7 | C - Required if Graphic Annotations or Overlays or Curves are to be applied to referenced image(s)
Graphic Group | C.10.11 | U
Modality LUT | C.11.1 | C - Required if a Modality LUT is to be applied to referenced image(s)
Softcopy VOI LUT | C.11.8 | C - Required if a VOI LUT is to be applied to referenced image(s)
Palette Color LUT | C.7.9 | M
ICC Profile | C.11.15 | M
SOP Common | C.12.1 | M

In the Pseudo-Color Softcopy Presentation State IOD, the Presentation Series Module specializes some Attributes of the General Series Module, the Presentation State Mask Module specializes some Attributes of the Mask Module, and the Presentation State Shutter Module specializes some Attributes of the Bitmap Display Shutter and Display Shutter Modules.

The Softcopy Presentation LUT Module shall not be present in this IOD.

### A.33.4 Blending Softcopy Presentation State IOD

#### A.33.4.1 Blending Softcopy Presentation State IOD Description

The Blending Softcopy Presentation State Information Object Definition (IOD) specifies information that may be used to blend two sets of images that are referenced from within the IOD for the purpose of presentation (display).

It includes capabilities for specifying:

1. the output color space in PCS-Values

2. grayscale contrast transformations including modality and VOI LUT for both the underlying and superimposed image sets

3. a color palette to map the transformed grayscale values of the superimposed image set into pseudo-color

4. selection of the area of the blended images to display and whether to rotate or flip it

5. image and display relative annotations, including graphics, text and overlays

#### A.33.4.2 Blending Softcopy Presentation State IOD Module Table

Table A.33.4-1. Blending Softcopy Presentation State IOD Modules

IE | Module | Reference | Usage
--- | --- | --- | ---
Patient | Patient | C.7.1.1 | M
Clinical Trial Subject | C.7.1.3 | U
Study | General Study | C.7.2.1 | M
Patient Study | C.7.2.2 | U
Clinical Trial Study | C.7.2.3 | U
Series | General Series | C.7.3.1 | M
Clinical Trial Series | C.7.3.2 | U
Presentation Series | C.11.9 | M
Equipment | General Equipment | C.7.5.1 | M
Presentation State | Presentation State Identification | C.11.10 | M
Presentation State Blending | C.11.14 | M
Displayed Area | C.10.4 | M
Graphic Annotation | C.10.5 | C - Required if Graphic Annotations are to be applied
Spatial Transformation | C.10.6 | C - Required if rotation or flipping are to be applied
Graphic Layer | C.10.7 | C - Required if Graphic Annotation Module is present
Graphic Group | C.10.11 | U
Palette Color LUT | C.7.9 | M
ICC Profile | C.11.15 | M
SOP Common | C.12.1 | M

In the Blending Softcopy Presentation State IOD, the Presentation Series Module specializes some Attributes of the General Series Module.

The Softcopy Presentation LUT Module shall not be present in this IOD.

The Modality LUT and Softcopy VOI LUT Module shall not be present in this IOD, since the Presentation State Blending Module subsumes their function.

The Palette Color LUT Module describes the color mapping to be used for the superimposed image set.

The Displayed Area and Graphic Annotation Modules specifically identify those images or frames to which they apply, and may include images or frames from the underlying or superimposed set.

The Spatial Transformation Module describes any necessary spatial transformation of the image to be rendered after the blending operation.

The Overlay Plane and Overlay/Curve Activation Modules shall not be present, and any overlays present in the referenced images shall not be displayed.

The Display Shutter and Bitmap Display Shutter Modules shall not be present, since the underlying image geometry may differ between the two sets of images.

The ICC Profile Module shall always be present. If the color space to be used is not calibrated (i.e., a device-specific ICC Input Profile is not available), then an ICC Input Profile specifying a well-known space (such as sRGB) may be specified.

### A.33.5 Basic Structured Display IOD

#### A.33.5.1 Basic Structured Display IOD Description

The Basic Structured Display Information Object Definition (IOD) specifies an instance of a single screen structured display that has been created for a patient. It references specific image or other composite SOP instances from one or more studies for that patient, or for other patients for comparison, arranged in a specific presentation layout. Presentation of images within the structured display may be controlled by referenced Softcopy Presentation State instances. The structured display may include text annotations.

Table A.33.5.1-1. Basic Structured Display IOD Modules

IE | Module | Reference | Usage
--- | --- | --- | ---
Patient | Patient | C.7.1.1 | M
Clinical Trial Subject | C.7.1.3 | U
Study | General Study | C.7.2.1 | M
Patient Study | C.7.2.2 | U
Clinical Trial Study | C.7.2.3 | U
Series | General Series | C.7.3.1 | M
Clinical Trial Series | C.7.3.2 | U
Presentation Series | C.11.9 | M
Equipment | General Equipment | C.7.5.1 | M
Enhanced General Equipment | C.7.5.2 | U
Presentation State | Structured Display | C.11.16 | M
Structured Display Image Box | C.11.17 | M
Structured Display Annotation | C.11.18 | U
Common Instance Reference | C.12.2 | M
SOP Common | C.12.1 | M

### A.33.6 XA/XRF Grayscale Softcopy Presentation State IOD

#### A.33.6.1 XA/XRF Grayscale Softcopy Presentation State IOD Description

The XA/XRF Grayscale Softcopy Presentation State Information Object Definition (IOD) specifies information that may be used to present angiographic projection images that are referenced from within the IOD.

It includes capabilities from the Grayscale Softcopy Presentation State IOD for specifying:

1. the output grayscale space in P-Values

2. grayscale contrast transformations including VOI LUT

3. selection of the area of the image to display and whether to rotate or flip it

4. image and display relative annotations, including graphics, text and overlays

For the presentation of angiographic projection images the following capabilities are provided:

1. shutter specifications on a frame-by-frame basis

2. mask subtraction including regional pixel shift

3. presentation of sets of frames

#### A.33.6.2 XA/XRF Grayscale Softcopy Presentation State IOD Module Table

Table A.33.6-1. XA/XRF Grayscale Softcopy Presentation State IOD Modules

IE | Module | Reference | Usage
--- | --- | --- | ---
Patient | Patient | C.7.1.1 | M
Clinical Trial Subject | C.7.1.3 | U
Study | General Study | C.7.2.1 | M
Patient Study | C.7.2.2 | U
Clinical Trial Study | C.7.2.3 | U
Series | General Series | C.7.3.1 | M
Clinical Trial Series | C.7.3.2 | U
Presentation Series | C.11.9 | M
Equipment | General Equipment | C.7.5.1 | M
Enhanced General Equipment | C.7.5.2 | M
Presentation State | Presentation State Identification | C.11.10 | M
Presentation State Relationship | C.11.11 | M
Presentation State Shutter | C.11.12 | M
Bitmap Display Shutter | C.7.6.15 | C - Required if a Display Shutter is to be applied to referenced image(s) and the XA/XRF Presentation State Shutter Module is not present
Overlay Plane | C.9.2 | C - Required if Overlay is to be applied to referenced image(s) or the Bitmap Display Shutter Module is present
Overlay Activation | C.11.7 | C - Required if referenced image contains overlay data that is to be displayed or Presentation State Instance contains Overlay data other than Bitmap Shutter
Displayed Area | C.10.4 | M
Graphic Annotation | C.10.5 | C - Required if Graphic Annotations are to be applied to referenced image(s)
Spatial Transformation | C.10.6 | C - Required if rotation or flipping are to be applied to referenced image(s)
Graphic Layer | C.10.7 | C - Required if Graphic Annotations or Overlays or Curves are to be applied to referenced image(s)
Softcopy VOI LUT | C.11.8 | C - Required if a VOI LUT is to be applied to referenced image(s)
XA/XRF Presentation State Mask | C.11.19 | C - Required if the referenced image(s) are to be subtracted
XA/XRF Presentation State Shutter | C.11.20 | C - Required if a Display Shutter is to be applied to referenced image(s) and the Bitmap Display Shutter Module is not present
XA/XRF Presentation State Presentation | C.11.21 | C - Required if the referenced image(s) are to be displayed with a prescribed preference
Softcopy Presentation LUT | C.11.6 | M
SOP Common | C.12.1 | M

In the XA/XRF Grayscale Softcopy Presentation State IOD, the Presentation Series Module specializes some Attributes of the General Series Module, the XA/XRF Presentation State Mask Module specializes some Attributes of the Mask Module, and the XA/XRF Presentation State Shutter Module specializes some Attributes of the Bitmap Display Shutter and Display Shutter Modules.

### Note

1. Subtraction between different images is not supported.

2. The Display Shutter may be used to darken image areas that surround important information and exclude extraneous bright areas that increase glare and ambient lighting impairing image interpretation. For example, unexposed areas in a XA image might be obscured using the Display Shutter, rather than permanently replacing image pixels in those areas.

3. This IOD does not support the storage of a multi-frame overlay in the IOD itself, but does support selective activation of multi-frame overlays within the referenced images via the Overlay Activation Module.

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