A.84.3.2 Ophthalmic Optical Coherence Tomography B-scan Volume Analysis Functional Group Macros

A.84.3.2 Ophthalmic Optical Coherence Tomography B-scan Volume Analysis Functional Group Macros (Current)
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Table A.84.3.2-1 specifies the use of the Functional Group Macros used in the Multi-frame Functional Groups Module for the Ophthalmic Optical Coherence Tomography B-scan Volume Analysis IOD.

Table A.84.3.2-1. Ophthalmic Optical Coherence Tomography B-scan Volume Analysis Functional Group Macros

Functional Group Macro	Section	Usage
Pixel Measures	C.7.6.16.2.1	M
Plane Orientation (Patient)	C.7.6.16.2.4	M
Plane Position (Patient)	C.7.6.16.2.3	M
Frame Content	C.7.6.16.2.2	M - May not be used as a Shared Functional Group.
Referenced Image	C.7.6.16.2.5	M
Derivation Image	C.7.6.16.2.6	M - May not be used as a Shared Functional Group (see Section A.84.3.2.1.1 for specialization).
Frame Anatomy	C.7.6.16.2.8	M
Frame VOI LUT With LUT	C.7.6.16.2.10b	M
Real World Value Mapping	C.7.6.16.2.11	U

A.84.3.2.1 Ophthalmic Optical Coherence Tomography B-scan Volume Analysis IOD Content Constraints

This source for an Ophthalmic Optical Coherence Tomography B-scan Volume Analysis SOP Instance is one or more multi-frame Ophthalmic Tomography SOP Instance(s). The correlation is encoded at the Frame Level and conveyed in the Derivation Image Macro (see Section C.8.17.14.1.7 for examples).

A.84.3.2.1.1 Derivation Image Functional Group

The following constraints to the Derivation Image Macro shall apply:

Derivation Image Sequence (0008,9124) shall be Type 1
The value for Derivation Code Sequence (0008,9215) shall be (128303, DCM, "OCT B-scan analysis")
Source Image Sequence (0008,2112) shall be Type 1 and contain one Item. The referenced SOP Instance shall have the same value for Frame of Reference UID (0020,0052) as this SOP Instance
The value for Referenced SOP Class UID (0008,1150) shall be "1.2.840.10008.5.1.4.1.1.77.1.5.4" (Ophthalmic Tomography Image Storage)
The value for Purpose of Reference Code Sequence (0040,A170) shall be (128250, DCM, "Structural image for imaging processing")
The value for Spatial Locations Preserved (0028,135A) shall be YES

A.84.3.2.1.2 Coordinate System

The Coordinate System associated with the Frame of Reference UID may be deformed from the nominal Patient-based Coordinate System (see Section A.52.4.3.1), and thus the Attribute Values of the Plane Position (Patient), Plane Orientation (Patient), and Pixel Measures Functional Groups are nominal values.