DICOM PS3.3 2024e - Information Object Definitions |
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This section describes the Enhanced CT Image Module. Table C.8-114 specifies the Attributes of the Enhanced CT Image Module.
Table C.8-114. Enhanced CT Image Module Attributes
Image characteristics. See Section C.8.16.1 and Section C.8.15.2.1.1. |
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Indicates whether the image is created by means of Multi-energy technique. |
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Include Table C.8-131 “Common CT/MR and Photoacoustic Image Description Macro Attributes” |
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A number identifying the single continuous gathering of data over a period of time that resulted in this image. |
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The date and time that the acquisition of data started. Note
Required if Image Type (0008,0008) Value 1 of this frame is ORIGINAL or MIXED and SOP Class UID is not "1.2.840.10008.5.1.4.1.1.2.2" (Legacy Converted), may be present otherwise. |
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The time in seconds needed to complete the acquisition of data. See Section C.7.6.16.2.2.1 for further explanation. Required if Image Type (0008,0008) Value 1 of this frame is ORIGINAL or MIXED and SOP Class UID is not "1.2.840.10008.5.1.4.1.1.2.2" (Legacy Converted), may be present otherwise. |
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Include Table 10.42-1 “Hierarchical Evidence Reference Macro Attributes” |
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Number of samples (planes) in this image. This value shall be 1. |
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Specifies the intended interpretation of the pixel data. See Section C.7.6.3.1.2 for definition of this term. |
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Number of bits allocated for each pixel sample. Each sample shall have the same number of bits allocated. This value shall be 16. |
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Number of bits stored for each pixel sample. Each sample shall have the same number of bits stored. This value shall be 12 or16. |
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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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Content Qualification Indicator See Section C.8.13.2.1.1 for further explanation. Required if SOP Class UID is not "1.2.840.10008.5.1.4.1.1.2.2" (Legacy Converted), may be present otherwise. |
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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. This means that images that contain this Module shall not contain such burned in annotations. Required if SOP Class UID is not "1.2.840.10008.5.1.4.1.1.2.2" (Legacy Converted), may be present otherwise. |
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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. Required if SOP Class UID is not "1.2.840.10008.5.1.4.1.1.2.2" (Legacy Converted). May be present otherwise. |
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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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Specifies an identity transformation for the Presentation LUT, such that the output of all grayscale transformations defined in the IOD containing this Module are defined to be P-Values. |
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See Section C.7.6.1.1.6. |
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Include Table 10-25 “Optional View and Slice Progression Direction Macro Attributes” |
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Include Table C.36.2.4.12-1 “RT Equipment Mapping and Plan Reference Macro Attributes” |
Section 10.23 RT Equipment Correlation Macro (Retired) was previously included in this Module but has been retired. See PS3.3-2024b.
In addition to the requirements specified in Section C.8.16.1 Image Type and Frame Type, the following additional requirements and Defined Terms are specified.
These requirements and Defined Terms are also applicable to Frame Type (0008,9007).
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.
Table C.8-115 specifies the Defined Terms for CT additional to those defined in Section C.8.16.1.3 for Value 3 for Image Type (0008,0008) and Frame Type (0008,9007).
Table C.8-115. Image Type and Frame Type Value 3 for CT
Table C.8-116 specifies the Defined Terms for CT additional to those defined in Section C.8.16.1.4 for Value 4 for Image Type (0008,0008) and Frame Type (0008,9007).
Table C.8-116b specifies the Defined Terms for CT for Value 5 for Image Type (0008,0008) and Frame Type (0008,9007). Image Type (0008,0008) Value 5 shall be present if Multi-energy CT Acquisition (0018,9361) has a value of YES.
Table C.8-116b. Image Type and Frame Type Value 5 for CT
The Defined Terms in Table C.8-116b are also used as Defined Terms for Value 4 of the CT Image IOD multi-energy Image Type (see Section C.8.2.1.1.1).
DICOM PS3.3 2024e - Information Object Definitions |
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