| DICOM PS3.3 2024c - Information Object Definitions |
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Table C.8.21.1-1 specifies the Attributes of the X-Ray 3D Image Module, which contains Attributes that describe a X-Ray 3D Image by specializing Attributes of the General Image Module and Image Pixel Module, and adding additional Attributes.
Table C.8.21.1-1. X-Ray 3D Image Module Attributes
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Image identification characteristics. See Section C.8.21.1.1.1 for specialization. |
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Include Table C.8-131 “Common CT/MR and Photoacoustic Image Description Macro Attributes” |
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Number of bits allocated for each voxel sample. Each sample shall have the same number of bits allocated. |
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Number of bits stored for each voxel sample. Each sample shall have the same number of bits stored. |
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Most significant bit for pixel sample data. Each sample shall have the same high bit. Shall be one less than the value in Bits Stored (0028,0101). |
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Number of samples (color planes) in this image shall have a value of 1. |
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Content Qualification Indicator See Section C.8.13.2.1.1 for further explanation. |
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Indicates whether or not the image contains sufficient burned in annotation to identify the patient and date the image was acquired. |
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Indicates whether or not the image contains sufficiently recognizable visual features to allow the image or a reconstruction from a set of images to identify the patient. If this Attribute is absent, then the image may or may not contain recognizable visual features. |
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Specifies whether an Image has undergone lossy compression (at a point in its lifetime). Enumerated Values: Once this value has been set to "01" it shall not be reset. See Section C.7.6.1.1.5. |
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Describes the approximate lossy compression ratio(s) that have been applied to this image. |
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A label for the lossy compression method(s) that have been applied to this image. |
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Full set of Composite SOP Instances referred to inside the Referenced Image Sequences of this SOP Instance. See Section 10.42.1 for further explanation. One or more Items shall be included in this Sequence. Required if the Referenced Image Sequence (0008,1140) is present. |
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>Include Table C.17-3 “Hierarchical SOP Instance Reference Macro Attributes” |
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Include Table 10.41-1 “General Procedure Protocol Reference Macro Attributes” |
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Indicates whether or not this image is a quality control or phantom image. If this Attribute is absent, then the image may or may not be a quality control or phantom image. |
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See Section C.7.6.1.1.6 for further explanation. |
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Specifies a predefined identity transformation for the Presentation LUT such that the output of all grayscale transformations, if any, are defined to be in P-Values. |
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The set of Irradiation Events that were produced in this acquisition context. See C.8.21.1.1.4. |
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Unique identification of the irradiation event(s) associated with the acquisition of this image. |
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In addition to the requirements specified in Section C.8.16.1 Image Type, the following additional requirements and Defined Terms are specified.
Value 1 of Image Type (0008,0008) and Frame Type (0008,9007) is discussed in Section C.8.16.1.1. No additional requirements or Defined Terms.
Value 2 of Image Type (0008,0008) and Frame Type (0008,9007) is discussed in Section C.8.16.1.2. No additional requirements or Defined Terms.
Value 3 of Image Type (0008,0008) and Frame Type (0008,9007) is discussed in Section C.8.16.1.3. No additional requirements or Defined Terms.
Value 4 of Image Type (0008,0008) and Frame Type (0008,9007) is discussed in Section C.8.16.1.4. The value shall be NONE.
The value of Volumetric Properties (0008,9206) is discussed in Section C.8.16.2.1.2.
For regularly sampled tomosynthesis slices reconstructed from projection X-Ray data, a value of VOLUME or SAMPLED is appropriate.
For slabs constructed by averaging adjacent regularly sampled tomosynthesis slices to produce thicker slices, a value of SAMPLED is appropriate.
For mathematically generated 2D views (e.g., constructed as Maximum Intensity Projections) of regularly sampled tomosynthesis slices, a value of SAMPLED is appropriate.
The value of Volume Based Calculation Technique (0008,9207) is discussed in Section C.8.16.2.1.3.
Table C.8.21.1.1.3-1 specifies the additional Defined Terms for the Volume Based Calculation Technique (0008,9207) Attribute to those in Table C.8-134 in Section C.8.16.2.1.3.
The Source Irradiation Event Sequence (0008,3011) contains the Irradiation Event UIDs of all the original projection images that were used in the 3D reconstruction process of this X-Ray 3D Image, regardless whether the projection images are encoded as DICOM images or not. Therefore, it allows relating the reconstructed X-Ray 3D image to its contributing irradiation events contained in the Radiation Dose SR.
The equipment generating the projection images associates these images to one or more Irradiation Event UIDs. All these UIDs are then included in the Radiation Dose SR as well as in the appropriate projection DICOM images. An X-Ray 3D image reconstructed from a set of projection images will include those Irradiation Event UIDs of the images that participated to that 3D reconstruction. In case the projection images are not encoded as DICOM images, the X-Ray equipment is responsible for including the contributing Irradiation Event UIDs in any further X-Ray 3D image reconstructed on that equipment.
An X-Ray 3D image derived from one or more X-Ray 3D images will include in the derived image all the Irradiation Event UIDs of the source images.
| DICOM PS3.3 2024c - Information Object Definitions |
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