Материал: part03

A.73 Corneal Topography Map IOD​

A.73.1 Corneal Topography Map IOD Description​

TheCornealTopographyMapIODisgeneratedbyophthalmiccornealtopographymappingdevices,suchasreflection-basedtopography​ and elevation-based tomography instruments to generate curvature and/or elevation measurements of corneal anterior and posterior​ surfaces that are presented topographically using a monochromatic image and a pseudo-color map.​

A.73.2 Corneal Topography Map IOD Entity-Relationship Model​

This IOD uses the E-R Model in Section A.1.2, with only the Image IE below the Series IE.​

A.73.3 Corneal Topography Map IOD Modules​

Table A.73.3-1 specifies the Modules of the Corneal Topography Map IOD.​

Table A.73.3-1. Corneal Topography Map IOD Modules​

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A.73.4 Corneal Topography Map IOD Content Constraints​

The following constraints on Image Attributes take precedence over the descriptions given in the Module Attribute Tables.​

A.73.4.1 Prohibited Modules​

The Curve Module (Retired), Overlay Plane Module and VOI LUT Module shall not be used in a Standard Extended SOP Class of​ the Corneal Topography Map.​

A.74 Breast Projection X-Ray Image IOD​

A.74.1 Breast Projection X-Ray Image IOD Description​

TheBreastProjectionX-RayImageInformationObjectDefinitionspecifiesanimagesetthathasbeencreatedbyadigitalmammography​ projection radiography imaging device.​

Note​

The preferred IOD for traditional digital mammography is Digital Mammography X-Ray Image.​

The Breast Projection X-Ray Image IOD is used in two SOP Classes as defined in PS3.4 Storage Service Class, a SOP Class for​ storageofimagesintendedforpresentation,andaSOPClassforstorageofimagesintendedforfurtherprocessingbeforepresentation.​ These are distinguished by their SOP Class UID and by the Enumerated Value of the mandatory Attribute in the DX Series Module,​ Presentation Intent Type (0008,0068).​

A.74.2 Breast Projection X-Ray Image IOD Entity-Relationship Model​

This IOD uses the E-R Model in Section A.1.2, with only the Image IE below the Series IE.​

A.74.3 Breast Projection X-Ray Image IOD Module Table​

Table A.74-1 specifies the Modules of the Breast Projection X-Ray Image IOD.​

Table A.74-1. Breast Projection X-Ray Image IOD Modules​

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A.74.3.1 Breast Projection X-Ray Image IOD Content Constraints​

A.74.3.1.1 Modality Attribute​

Modality (0008,0060) shall have the value MG.​

A.74.3.1.2 Overlay Plane Module, Curve Module and VOI LUT Module​

The Overlay Plane Module, Curve Module (Retired), VOI LUT Module and Softcopy Presentation LUT Module shall not be used in a​ Standard Extended SOP Class of the Breast Projection X-Ray Image.​

Note​

The VOI LUT function is provided by a Frame VOI LUT Functional Group.​

A.74.4 Breast Projection X-Ray Image Functional Group Macros​

Table A.74-2 specifies the use of the Functional Group Macros used in the Multi-frame Functional Groups Module for the Breast​ Projection X-Ray Image IOD.​

Table A.74-2. Breast Projection X-Ray Image Functional Group Macros​

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A.74.4.1BreastProjectionX-RayImageFunctionalGroupMacrosContentConstraints​

A.74.4.1.1 Frame Anatomy Functional Group Macro​

The Defined CID for the Anatomic Region Sequence (0008,2218) shall be CID 4013 “Anatomic Region for Mammography”.​

A.75 Parametric Map IOD​

A.75.1 Parametric Map IOD Description​

The Parametric Map Information Object Definition (IOD) specifies a multi-frame image representing pixels with real world values.​ Parametric Maps are either integer or floating point.​

The Parametric Map IOD does not include the full set of acquisition parameters of any acquired images from which they were derived,​ e.g., cardiac phase. An application rendering or processing the Parametric Map may need to access the source images for such in-​ formation.​

The Parametric Map IOD requires the presence of VOI LUT (window) information with the intent that at a minimum the image be​ renderable without special processing. The output space is defined as P-Values to achieve consistency.​

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Note​

•​The VOI LUT mechanism specifically supports floating point values, and there is no expectation that it be limited to integer​ input or output ranges.​

•​Even though the output of the VOI LUT is not constrained to be integer values, implicit scaling of the output range to the​ input range of an integer-based Palette Color LUT can be used to apply pseudo-color for display. Pseudo-color mapping​ information may be encoded with the image. This may be applied at the discretion of the receiving application or it may​ use a separate DICOM Color Palette IOD or some other mechanism.​

TheParametricMapIODencodesoneormoreparametersasanimage.OtherImageIODsmaybeusedtoencoderelatedinformation,​ and instances of them may be referenced from the Parametric Map, as the source from which a parameter was derived, or some​ other relationship.​

Note​

•​The Blending Presentation State IOD may be used to describe how (selected frames of) a Parametric Map instance may​ besuperimposedon,say,framesofacquiredimagesforanatomicalreferenceencodedasinstancesofotherImageIODs,​ as well as the relative opacity and pseudo-color applicable to the overlying frames.​

•​Commonality of the same Frame of Reference UID also allows an application to relate Parametric Map instances and​ other Image instances, in the absence of explicit references.​

•​The Parametric Map IOD is not restricted to encoding only a single parameter in one instance. Since it is a multi-frame​ object, and since the type of parameter is encoded in the Real World Value Mapping Functional Group Macro, which may​ vary on a per-frame basis, the parameter may also vary from frame-to-frame. In such cases, the Multi-frame Dimension​ Module may be used to highlight this, by specifying the Quantity Definition Sequence (0040,9220) as a Dimension Index.​

A.75.2 Parametric Map IOD Entity-Relationship Model​

This IOD uses the E-R Model in Section A.1.2, with only the Image IE below the Series IE.​

A.75.3 Parametric Map IOD Module Table​

Table A.75-1. Parametric Map IOD Modules​

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