A.2 Computed Radiography Image IOD
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## A.2 Computed Radiography Image IOD

### A.2.1 CR Image IOD Description

The Computed Radiography (CR) Image Information Object Definition specifies an image that has been created by a computed radiography imaging device.

### Note

Digital Luminescence Radiography is an equivalent term for computed Radiography.

### A.2.2 CR Image IOD Entity-Relationship Model

The E-R Model in Section A.1.2 depicts those components of the DICOM Information Model that directly reference the CR Image IOD. The Frame of Reference IE, Overlay IE, Modality LUT IE, VOI LUT IE and Curve IE are not components of the CR Image IOD.

### A.2.3 CR Image IOD Module Table

Table A.2-1. CR Image 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
CR Series | C.8.1.1 | M
Clinical Trial Series | C.7.3.2 | U
Equipment | General Equipment | C.7.5.1 | M
Image | General Image | C.7.6.1 | M
Image Pixel | C.7.6.3 | M
Contrast/Bolus | C.7.6.4 | C - Required if contrast media was used in this image
Display Shutter | C.7.6.11 | U
Device | C.7.6.12 | U
Specimen | C.7.6.22 | U
CR Image | C.8.1.2 | M
Overlay Plane | C.9.2 | U
Modality LUT | C.11.1 | U
VOILUT | C.11.2 | U
SOP Common | C.12.1 | M
Common Instance Reference | C.12.2 | U

### Note

The Curve Module was previously included in the Image IE for this IOD but has been retired. See PS3.3-2004.

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