Материал: part03

Note​

1.​These Modules supply general information of the sources without the need to have access to all the contributing SOP​ Instances or when these SOP Instances do not exist.​

2.​These Modulesdonotcontainspecificinformationofthe X-Rayacquisitionitself. Forthis purpose theX-Ray 3DAcquis-​ ition Modules may be used.​

C.8.21.2.1 X-Ray 3D Angiographic Image Contributing Sources Module​

This section describes the X-Ray 3D Angiographic Image Contributing Sources Module. The Attributes in this Module specify the​ overall characteristics of one or more sources that were used to create a X-Ray 3D Angiographic Image SOP Class instance.​ Table C.8.21.2.1-1 contains the relevant IOD Attributes that describe X-Ray 3D Angiographic Image Contributing Sources.​

Table C.8.21.2.1-1. X-Ray 3D Angiographic Image Contributing Sources Module Attributes​

Required if present and consistent in the contributing SOP​

Instances.​

C.8.21.2.2 X-Ray 3D Craniofacial Image Contributing Sources Module​

This section describes the X-Ray 3D Craniofacial Image Contributing Sources Module. The Attributes in this Module specify the​ overall characteristics of one or more sources that were used to create a X-Ray 3D Craniofacial Image SOP Class instance.​ Table C.8.21.2.2-1 contains the relevant IOD Attributes that describe X-Ray 3D Craniofacial Image Contributing Sources.​

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DICOM PS3.3 2020a - Information Object Definitions​ Page 1087​

Table C.8.21.2.2-1. X-Ray 3D Craniofacial Image Contributing Sources Module Attributes​

Required if present and consistent in the contributing SOP​

Instances.​

C.8.21.2.3 Breast Tomosynthesis Contributing Sources Module​

This section describes the Breast Tomosynthesis Contributing Sources Module. The Attributes in this Module specify the overall​ characteristics of one or more source images that were used to create a Breast Tomosynthesis Image SOP Class instance.​ Table C.8.21.2.3-1 contains the IOD Attributes that describe Breast Tomosynthesis Contributing Sources.​

Note​

The intention of this Module is to supply acquisition information without the need to have access to all the source projection​ images.​

Table C.8.21.2.3-1. Breast Tomosynthesis Contributing Sources Module Attributes​

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column spacing value in mm. See Section 10.7.1.3 for further​ explanation of the value order.​

Note​

This may not be the same as the Imager Pixel​ Spacing (0018,1164), and should not be assumed to​ describe the stored image.​

C.8.21.3 X-Ray 3D Acquisition Modules​

This section describes the X-Ray 3D Acquisition Modules and Macros to specify the acquisition context information used as input for​ one or more reconstructions. The Macros in this section define the Attributes that are common for all modalities. The Macros are used​ in the modality specific Modules.​

The Attributes of each Item in the X-Ray 3D Acquisition Sequence (0018,9507) define the acquisition characteristics of the projection​ images that were used to create one or more reconstructions.​

Note​

1.​The intention of this Sequence is to supply acquisition information without the need to have access to all the contributing​ SOP Instances or when these SOP Instances do not exist.​

2.​The number of frames referenced in this Sequence is not necessarily the same as the number of projection images.​

For each Item of the X-Ray 3D Reconstruction Sequence (0018,9530) in the X-Ray 3D Reconstruction Module, the values of Acquis-​ ition Index (0020,9518) specify the Items in the X-Ray 3D Acquisition Sequence (0018,9507) that contribute to the reconstruction.​

Note​

Forexample,aSOPInstanceconsistsoftwovolumesintwosetsofframes.Thefirstvolumeiscalculatedfromanacquisition​ without contrast and a second volume is calculated from the acquisitions with and without contrast. In this case the X-Ray​ 3D Acquisition Sequence (0018,9507) contains two Items. The first Item describes the acquisition details of the frames that​ areacquiredwithoutcontrast.ThesecondItemdescribestheacquisitiondetailsoftheframesthatareacquiredwithcontrast.​ For the frames of the second volume both acquisitions contribute to the calculation. See Figure C.8.21.3-1, Figure C.8.21.3-​ 2, Figure C.8.21.3-3, Figure C.8.21.3-4 and Figure C.8.21.3-5.​

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2D Projection SOP Instance A

X-Ray 3D Image SOP Instance

Figure C.8.21.3-1. Example of Usage Acquisition​

Contributing Sources Sequence (0018,9506)

Item 1

>Contributing SOP Instances Reference Sequence (0020,9529)

Item 1

>>Study Instance UID (0020,000D)

>>Referenced Series Sequence (0008,1115) Item 1

>>>Series Instance UID (0020,000E)

>>>Series Number (0020,0011)

>>>Referenced Instance Sequence (0008,114A) Item 1

>>>>Referenced SOP Class UID (0008,1150)

>>>>Referenced SOP Instance UID (0008,1155)

>>>>Instance Number (0020,0013)

>.... Other Attributes

Figure C.8.21.3-2. Example of Contents of Contributing Sources Sequence​

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Figure C.8.21.3-3. Example of Contents of X-Ray 3D Acquisition Sequence​

Figure C.8.21.3-4. Example of Contents of X-Ray 3D Reconstruction Sequence​

Figure C.8.21.3-5. Example of Contents of X-Ray 3D Frame Type Sequences​ C.8.21.3.1 X-Ray 3D General Acquisition Macros​

This section describes the X-Ray 3D General Acquisition Macros. These Macros specify the Attributes of the acquisition context​ common for the family of X-Ray 3D image SOP Classes.​

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