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DICOM PS3.3 2020a - Information Object Definitions​

Page 421​

Equipment creates

Protocol

Approval

Figure A.82.3.3.2-1. Protocol Approval IOD E-R Model​

A.82.3.1.3 Protocol Approval IOD Module Table​

Table A.82.3.1.3-1. Protocol Approval IOD Modules​

IE​

Module​

Reference​

Usage​

Equipment​

General Equipment​

C.7.5.1​

M​

 

Enhanced General Equipment​

C.7.5.2​

M​

Approval​

SOP Common​

C.12.1​

M​

 

Protocol Approval​

C.34.15​

M​

A.83 Ophthalmic Optical Coherence Tomography En Face Image IOD​

This Section defines an Information Object to be used with several types of en face images that are derived from volumetric images​ obtained using OCT technology. En face images may be based upon structural OCT volumes and surface mesh information only or​ structural OCT volumes, surface mesh information and angiographic flow volume information.​

A.83.1 Ophthalmic Optical Coherence Tomography En Face Image IOD Description​

The Ophthalmic Optical Coherence Tomography En Face Image IOD specifies a single-frame image derived from images obtained​ using OCT technology. This IOD encodes a single derived en face image.​

A.83.2 Ophthalmic Optical Coherence Tomography En Face Image IOD Entity-Relationship​

Model​

The Ophthalmic Optical Coherence Tomography En Face Image IOD uses the DICOM Composite Instance IOD Entity-Relationship​ Information Model defined in Section A.1.2. The Series IE contains only an Image IE.​

A.83.3 Ophthalmic Optical Coherence Tomography En Face Image IOD Modules​

Table A.83-1 specifies the Modules of the Ophthalmic Optical Coherence Tomography En Face Image IOD.​

Table A.83-1. Ophthalmic Optical Coherence Tomography En Face 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​

 

Ophthalmic Tomography En Face Series​

C.8.17.17​

M​

 

Clinical Trial Series​

C.7.3.2​

U​

Frame of​

Frame of Reference​

C.7.4.1​

M​

Reference​

 

 

 

Equipment​

General Equipment​

C.7.5.1​

M​

- Standard -​

Page 422​

DICOM PS3.3 2020a - Information Object Definitions​

 

IE​

Module​

Reference​

Usage​

 

Enhanced General Equipment​

C.7.5.2​

M​

Image​

General Image​

C.7.6.1​

M​

 

Image Pixel​

C.7.6.3​

M​

 

Palette Color Lookup Table​

C.7.9​

C - Required if Photometric​

 

 

 

Interpretation (0028,0004) has​

 

 

 

a value of PALETTE COLOR​

 

Ophthalmic Optical Coherence Tomography En​

C.8.17.14​

M​

 

Face Image​

 

 

 

Ocular Region Imaged​

C.8.17.5​

M​

 

Ophthalmic Optical Coherence Tomography En​

C.8.17.15​

C-Requiredifdevicecalculates​

 

Face Image Quality Rating​

 

quality rating​

 

ICC Profile​

C.11.15​

U​

 

SOP Common​

C.12.1​

M​

 

Common Instance Reference​

C.12.2​

U​

A.83.4 Ophthalmic Optical Coherence Tomography En Face Image Image IOD Content Con-​ straints​

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

A.83.4.1 Frame of Reference UID​

The value for the Frame of Reference UID (0020,0052) in this SOP Instance shall convey the same value as the Frame of Reference​ UID (0020,0052) of the SOP Instance(s) referenced in Attribute Source Image Sequence (0008,2112).​

A.84 Ophthalmic Optical Coherence Tomography B-scan Volume Analysis IOD​

This Section defines an Information Object to be used for multi-frame images obtained from the volumetric analysis of ophthalmic​ tomography B-scans (e.g., ophthalmic tomography angiographic (blood flow) volume information).​

A.84.1 Ophthalmic Optical Coherence Tomography B-scan Volume Analysis IOD Description​

The Ophthalmic Optical Coherence Tomography B-scan Volume Analysis IOD specifies a multi-frame image conveying ophthalmic​ optical coherence tomography volumetric B-scan volume analysis information (e.g., angiographic (blood flow) volume information).​

A.84.2 Ophthalmic Optical Coherence Tomography B-scan Volume Analysis IOD Entity-Rela-​ tionship Model​

The Ophthalmic Optical Coherence Tomography B-scan Volume Analysis IOD uses the DICOM Composite Instance IOD Entity-Re-​ lationship Information Model defined in Section A.1.2.​

A.84.3 Ophthalmic Optical Coherence Tomography B-scan Volume Analysis IOD Modules​

Table A.84-1 specifies the Modules of the Ophthalmic Optical Coherence Tomography B-scan Volume Analysis IOD.​

Table A.84-1. Ophthalmic Optical Coherence Tomography B-scan Volume Analysis 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​

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 423​

IE​

Module​

Reference​

Usage​

 

Patient Study​

C.7.2.2​

U​

 

Clinical Trial Study​

C.7.2.3​

U​

Series​

General Series​

C.7.3.1​

M​

 

Ophthalmic Tomography B-scan Volume Analysis​C.8.17.18​

M​

 

Series​

 

 

 

Clinical Trial Series​

C.7.3.2​

U​

Frame of​

Frame of Reference​

C.7.4.1​

M​

Reference​

 

 

 

Equipment​

General Equipment​

C.7.5.1​

M​

 

Enhanced General Equipment​

C.7.5.2​

M​

Image​

Image Pixel​

C.7.6.3​

M​

 

OphthalmicOpticalCoherenceTomographyB-scan​C.8.17.16​

M​

 

Volume Analysis Image​

 

 

 

Multi-frame Functional Groups​

C.7.6.16​

M​

 

Multi-frame Dimension​

C.7.6.17​

M​

 

SOP Common​

C.12.1​

M​

 

Common Instance Reference​

C.12.2​

U​

 

Frame Extraction​

C.12.3​

C - Required if the SOP​

 

 

 

Instance was created in​

 

 

 

response to a Frame-Level​

 

 

 

retrieve request​

A.84.3.1 Ophthalmic Optical Coherence Tomography B-scan Volume Analysis Con-​ straints​

The General Image Module, Overlay Plane Module, Modality LUT Module and VOI LUT Module shall not be used in a Standard Ex-​ tended SOP Class of the Ophthalmic Optical Coherence Tomography B-scan Volume Analysis SOP Class.​

Note​

In order to annotate a B-scan Volume Analysis, SOP Instances of the Grayscale Softcopy Presentation State Storage or the​ Structured Report Storage SOP Classes that reference the SOP Instance may be used.​

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

NostandardmechanismisprovidedforinclusionofannotationswithintheimageSOPInstanceitselfandimplementersarediscouraged​ from using private extensions to circumvent this restriction.​

A.84.3.2 Ophthalmic Optical Coherence Tomography B-scan Volume Analysis Func-​ tional Group Macros​

TableA.84.3.2-1specifiestheuseoftheFunctionalGroupMacrosusedintheMulti-frameFunctionalGroupsModulefortheOphthalmic​

Optical Coherence Tomography B-scan Volume Analysis IOD.​

TableA.84.3.2-1.OphthalmicOpticalCoherenceTomographyB-scanVolumeAnalysisFunctionalGroup​

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​

- Standard -​

Page 424​

DICOM PS3.3 2020a - Information Object Definitions​

Functional Group Macro​

Section​

Usage​

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​

 

 

 

FunctionalGroup(seeSectionA.84.3.2.1.1​

 

 

 

for specialization).​

Frame Anatomy​

 

C.7.6.16.2.8​

M​

Frame VOI LUT With LUT Macro​

 

C.7.6.16.2.10b​

M​

Real World Value Mapping​

 

C.7.6.16.2.11​

U​

A.84.3.2.1OphthalmicOpticalCoherenceTomographyB-scanVolumeAnalysisIODContentConstraints​

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:​

1.​Derivation Image Sequence (0008,9124) shall be Type 1​

2.​The value for Derivation Code Sequence (0008,9215) shall be (128303, DCM, "OCT B-scan analysis")​

3.​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​

4.​The value for Referenced SOP Class UID (0008,1150) shall be Ophthalmic Tomography Image Storage​ ("1.2.840.10008.5.1.4.1.1.77.1.5.4")​

5.​ThevalueforPurposeofReferenceCodeSequence(0040,A170)shallbe(128250,DCM,"Structuralimageforimagingprocessing")​

6.​The value for Spatial Locations Preserved (0028,135A) shall be YES​

A.85 Encapsulated 3D Manufacturing Model IODs​

A.85.1 Encapsulated STL IOD​

A.85.1.1 Encapsulated STL IOD Description​

The Encapsulated STL Information Object Definition (IOD) describes a 3D model in Stereolithography (STL) format that has been​ encapsulated within a DICOM Information Object.​

A.85.1.2 Encapsulated STL Entity-Relationship Model​

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

A.85.1.3 Encapsulated STL IOD Module Table​

Table A.85.1-1 specifies the Encapsulated STL IOD Modules.​

- Standard -​

DICOM PS3.3 2020a - Information Object Definitions​ Page 425​

Table A.85.1-1. Encapsulated STL 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​

Encapsulated Document Series​

C.24.1​

M​

 

Clinical Trial Series​

C.7.3.2​

U​

Frame of Reference​

Frame of Reference​

C.7.4.1​

M​

Equipment​

General Equipment​

C.7.5.1​

M​

 

Enhanced General Equipment​

C.7.5.2​

M​

Encapsulated​

Encapsulated Document​

C.24.2​

M​

Document​

Manufacturing 3D Model​

C.35.1​

M​

 

 

ICC Profile​

C.11.15​

U​

 

SOP Common​

C.12.1​

M​

Common Instance​

C.12.2​

C - Required if other instances are​

 

Reference​

 

referenced​

 

Note​

The Specimen Identification Module was previously included in this IOD but has been retired. See PS3.3-2008.​

A.85.1.4 Encapsulated STL IOD Content Constraints​

A.85.1.4.1 Encapsulated Document​

The Encapsulated Document (0042,0011) Attribute shall contain a binary STL byte stream [STL 1989]. The encapsulated document​ may include negative vertex coordinates.​

Note​

1.​The original STL specification in 1989 required that all 3 vertex coordinates of each triangle be located in the positive​ quadrant.Thecreatorsofthestandard(3DSystems)laterrelaxedthisrestrictionandnegativecoordinateswereallowed.​ It is common practice in medical usage for STL models to align with the coordinate system of the source DICOM data,​ which will often result in negative vertex coordinates.​

2.​The Frame Of Reference UID (0020,0052) is an identifier for the origin and axes implicit in the STL data.​

A.85.1.4.2 MIME Type of Encapsulated Document​

Enumerated Values:​

model/stl​

A.85.1.4.3 Modality​

Enumerated Values:​

M3D​

- Standard -​

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