A.67 Ophthalmic Thickness Map IOD
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## A.67 Ophthalmic Thickness Map IOD

### A.67.1 Ophthalmic Thickness Map IOD Description

The Ophthalmic Thickness Map IOD is generated by ophthalmic thickness mapping devices, such as retinal nerve fiber layer analyzers and optic nerve head analyzers, to generate measurements that are presented topographically using a monochromatic image and a pseudo-color map.

### A.67.2 Ophthalmic Thickness Map IOD Entity-Relationship Model

The E-R Model in Section A.1.2 depicts those components of the DICOM Information Model that are referenced by the Ophthalmic Thickness Map IOD. Below the Series IE, only the Image IE is used.

### A.67.3 Ophthalmic Thickness Map IOD Modules

Table A.67.3-1 specifies the Modules of the Ophthalmic Thickness Map IOD.

Table A.67.3-1. Ophthalmic Thickness Map 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
Ophthalmic Thickness Map Series | C.8.28.1 | M
Equipment | General Equipment | C.7.5.1 | M
Enhanced General Equipment | C.7.5.2 | M
Image | General Image | C.7.6.1 | M
Image Pixel | C.7.6.3 | M
Supplemental Palette Color Lookup Table | C.7.6.19 | C - Required if Pixel Presentation (0008,9205) equals COLOR
Bitmap Display Shutter | C.7.6.15 | C - Required if a Shutter is to be applied to the image
Ophthalmic Thickness Map | C.8.28.2 | M
Ophthalmic Thickness Map Quality Rating | C.8.28.3 | C - Required if a quality rating value exists for the ophthalmic map
Ophthalmic Photography Acquisition Parameters | C.8.17.4 | M
Acquisition Context | C.7.6.14 | M
SOP Common | C.12.1 | M
Common Instance Reference | C.12.2 | U

### A.67.4 Ophthalmic Thickness Map IOD Content Constraints

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

#### A.67.4.1 Prohibited Modules

The Curve Module, Overlay Module and VOI LUT Module shall not be used in a Standard Extended SOP Class of the Ophthalmic Thickness Map.

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