A.52.4 Ophthalmic Tomography Image IOD Content Constraints

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

A.52.4.1 Contrast/Bolus Agent Sequence

For Contrast/Bolus Agent Sequence (0018,0012), the Defined Context Group is 4200.

A.52.4.2 Overlay Plane Module and VOI LUT Module

The Overlay Plane Module and VOI LUT Module shall not be used in a Standard Extended SOP Class of the Ophthalmic Tomography Image.

Note: In order to annotate images, whether during acquisition or subsequently, SOP Instances of the Grayscale Softcopy Presentation State Storage or the Structured Report Storage SOP Classes that reference the image SOP Instance may be used.

Pseudo-color presentation information may be applied through the use of separate Pseudo-color Softcopy Presentation State SOP instances.

No standard mechanism is provided for inclusion of annotations within the image SOP Instance itself and implementers are discouraged from using private extensions to circumvent this restriction.

A.52.4.3 Ophthalmic Tomography Image Functional Group Macros

Table A.52.4.3-1 specifies the use of the Functional Group macros used in the Multi-frame Functional Group Module for the Ophthalmic Tomography Image IOD.

Table A.52.4.3-1OPHTHALMIC TOMOGRAPHY FUNCTIONAL GROUP MACROS

Function Group Macro Section Usage
Pixel Measures C.7.6.16.2.1 M
Frame Content C.7.6.16.2.2 M - May not be used as a Shared Functional Group.
Plane Position (Patient) C.7.6.16.2.3 C - Required if no Ophthalmic Photography Reference Image available; May be present otherwise
Plane Orientation (Patient) C.7.6.16.2.4 C - Required if no Ophthalmic Photography Reference Image available; May be present otherwise
Referenced Image C.7.6.16.2.5 C - Required if Ophthalmic Photography Reference Image available.
Derivation Image C.7.6.16.2.6 C - Required if the image or frame has been derived from another SOP Instance.
Frame Anatomy C.7.6.16.2.8 M
Cardiac Synchronization C.7.6.16.2.7 C - Required if Cardiac Synchronization Technique (0018,9037) equals other than NONE May be present otherwise.
Contrast/Bolus Usage C.7.6.16.2.12 C - Required if Contrast/Bolus Agent Sequence (0018,0012) is used. May not be used as a Shared Functional Group
Ophthalmic Frame Location C.8.17.10.1 U