A.54 X-RAY 3D CRANIOFACIAL IMAGE INFORMATION OBJECT DEFINITION

A.54.1 X-Ray 3D Craniofacial Image IOD Description

This Section defines the Information Object for multi-dimensional reconstructed cone beam X-Ray Craniofacial Images and includes those data elements and information objects necessary for the interchange of Multi-dimensional X-Ray volumes.

Examples of X-Ray 3D Craniofacial Images are: 3D reconstruction of craniofacial structures for surgical placement of implants, dimensional analysis for orthodontic therapy and evaluation of craniofacial pathology.

A.54.2 X-Ray 3D Craniofacial Image IOD Entity-Relationship Model

The E-R Model in Section A.1.2 depicts those components of the DICOM Application Information Model that directly reference the X-Ray 3D Craniofacial Image IOD.

A.54.3 X-Ray 3D Craniofacial Image IOD Module Table

Table A.54-1X-RAY 3D Craniofacial 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
Enhanced Series C.7.3.3 M
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
Image Image Pixel C.7.6.3 M
Enhanced Contrast/Bolus C.7.6.4b C - Required if contrast media was applied.
Device C.7.6.12 U
Intervention C.7.6.13 U
Acquisition Context C.7.6.14 M
Multi-frame Functional Groups C.7.6.16 M
Multi-frame Dimension C.7.6.17 U
Patient Orientation C.7.6.20 U
Image - Equipment Coordinate Relationship C.7.6.21 U
Specimen C.7.6.22 U
X-Ray 3D Image C.8.21.1 M
X-Ray 3D Craniofacial Image Contributing Sources C.8.21.2.2 U
X-Ray 3D Craniofacial Acquisition C.8.21.3.3 U
X-Ray 3D Reconstruction C.8.21.4 U
SOP Common C.12.1 M
Frame Extraction C.12.3 C - Required if the SOP Instance was created in response to a Frame-Level retrieve request

A.54.3.1 X-Ray 3D Craniofacial Image IOD Content Constraints

A.54.3.1.1 Modality Type Attribute

The Modality Type attribute (0008,0060) shall have the value DX.

A.54.3.1.2 Restrictions for Standard Extended SOP Classes

The Overlay Plane Module, VOI LUT Module and Softcopy Presentation LUT Module shall not be used in a Standard Extended SOP Class of the X-Ray 3D Craniofacial Image.

Notes: 1. The VOI LUT function is provided by a Frame VOI LUT Functional Group.

2. The Curve Module was previously included in the Image IE for this IOD but has been retired. See PS 3.3 2004.

A.54.4 X-Ray 3D Craniofacial Image Functional Group Macros

Table A.54-2 specifies the use of the Functional Group macros used in the Multi-frame Functional Groups Module for the X-Ray 3D Craniofacial Image IOD.

Table A.54-2X-RAY 3D CRANIOFACIAL IMAGE FUNCTIONAL GROUP MACROS

Functional 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 M
Plane Orientation (Patient) C.7.6.16.2.4 M
Referenced Image C.7.6.16.2.5 U
Derivation Image C.7.6.16.2.6 C - Required if the Image Type (0008,0008) Value 1 equals DERIVED..
Frame Anatomy C.7.6.16.2.8 M
Pixel Value Transformation C.7.6.16.2.9 U
Frame VOI LUT C.7.6.16.2.10 M
Real World Value Mapping C.7.6.16.2.11 U
Contrast/Bolus Usage C.7.6.16.2.12 C - Required if the Enhanced Contrast/Bolus Module is present.
X-Ray 3D Frame Type C.8.21.5.1 M

A.54.4.1 X-Ray 3D Craniofacial Image Functional Group Macros Content Constraints

A.54.4.1.1 Frame Anatomy Functional Group Macro

The Defined Context ID for the Anatomic Region Sequence (0008,2218) shall be CID 4028 or CID 4016.

In the case of CID 4016, the Defined Context ID for the Anatomic Region Modifier Sequence (0008,2220) shall be CID 4017, if present, and the Defined Context ID for the Primary Anatomic Structure Sequence (0008,2228) shall be either CID 4018 or CID 4019, if present.