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DICOM PS3.3 2020a - Information Object Definitions |
A.66.1 Intravascular Optical Coherence Tomography Image IOD Description
The Intravascular Optical Coherence Tomography Image IOD specifies a multi-frame image acquired on an Intravascular Optical Coherence Tomography modality.
TheIntravascularOpticalCoherenceTomographyImageIODisusedintwoSOPClassesasdefinedinPS3.4StorageServiceClass, a SOP Class for storage of images intended for presentation, and a SOP Class for storage of images intended for further processing before presentation. These are distinguished by their SOP Class UID and by the Enumerated Value of the mandatory Attribute in the Intravascular OCT Series Module, Presentation Intent Type (0008,0068).
IVOCT stores frames of polar data arranged in a rectangular format when "FOR PROCESSING" is specified. The A-lines in a frame are arranged in row order, with the catheter optics toward the left of the image. A-lines are always stored from top to bottom, in order of acquisition. The A-lines are evenly spaced (in angles) to form a complete 360 degrees of acquisition.
Application entities creating IVOCT FOR PRESENTATION SOP instances shall apply all needed processing (e.g., Z offset and re- fractive index correction) to the IVOCT image for correct presentation.
A.66.2 Intravascular Optical Coherence Tomography Image IOD Entity-Relationship Model
This IOD uses the E-R Model in Section A.1.2, with only the Image IE below the Series IE.
A.66.3 Intravascular Optical Coherence Tomography Image IOD Modules
Table A.66.3-1 specifies the Modules of the Intravascular Optical Coherence Tomography Image IOD.
Table A.66.3-1. Intravascular Optical Coherence Tomography 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 |
|
Clinical Trial Series |
C.7.3.2 |
U |
|
Intravascular OCT Series |
C.8.27.1 |
M |
Frame of Frame of Reference |
C.7.4.1 |
M |
ReferenceSynchronization |
C.7.4.2 |
M |
EquipmentGeneral Equipment |
C.7.5.1 |
M |
|
Enhanced General Equipment |
C.7.5.2 |
M |
Image |
Image Pixel |
C.7.6.3 |
M |
|
Supplemental Palette Color Lookup Table |
C.7.6.19 |
C - Required if Pixel Presentation |
|
|
|
(0008,9205) in the Intravascular OCT |
|
|
|
Image Module equals COLOR. |
|
Enhanced Contrast/Bolus |
C.7.6.4 |
M |
|
Multi-frame Functional Groups |
C.7.6.16 |
M |
|
Multi-frame Dimension |
C.7.6.17 |
M |
|
Device |
C.7.6.12 |
U |
|
Acquisition Context |
C.7.6.14 |
M |
|
Cardiac Synchronization |
C.7.6.18.1 |
C-Requiredifcardiacsynchronization |
|
|
|
was used |