DICOM PS3.3 2024d - Information Object Definitions |
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Table C.8.24.3-1 specifies the Attributes of the Enhanced US Image Module. As described in Section A.1.2.6, the Attributes in this Module apply to the first frame of a multi-frame image; any or all of this information may be overridden by Attributes in Per-Frame Functional Groups.
Table C.8.24.3-1. Enhanced US Image Module Attributes
Image identification characteristics. See Section C.8.24.3.2 for specialization. |
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Number of bits stored for each pixel sample. Shall be equal to Bits Allocated (0028,0100). |
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Most significant bit for pixel sample data. High Bit (0028,0102) shall be one less than Bits Stored (0028,0101). |
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Data representation of pixel samples. The constrained Enumerated Value implies the VR of all Palette Color Lookup Table Descriptors be US (and not SS). See Section C.8.24.3.1 for specialization. |
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Dimension organization of the Instance. See Section C.8.24.3.3 for details. |
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The date and time that the acquisition of data that resulted in this image started. |
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Describes the type of position measuring device used in the acquisition of the image, if any. This gives an indication of the degree of precision of Pixel Spacing (0028,0030) and the spacing between adjacent planes. NoteThe actual precision will depend on a variety of factors such as the tracking technology used and the quality of the calibration. Enumerated Values:
Required if Volumetric Properties (0008,9206) is VOLUME and Volume Based Calculation Technique (0008,9207) is NONE. May be present otherwise. |
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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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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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The value b in relationship between stored values (SV) and the output units. |
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m in the equation specified by Rescale Intercept (0028,1052). |
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A Sequence that identifies the set of Image SOP Class/Instance pairs of the Images that were used to derive this Image. One or more Items shall be included in this Sequence. See Section C.12.4.1.2 for further explanation. |
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>Include Table 10-3 “Image SOP Instance Reference Macro Attributes” |
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A Sequence that references other images significantly related to this image. (e.g., an image containing spatially related frames) |
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>Include Table 10-3 “Image SOP Instance Reference Macro Attributes” |
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A Sequence that identifies the set of Raw Data SOP Class/Instance pairs of the raw data that were used to derive this Image. |
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>Include Table C.17-3 “Hierarchical SOP Instance Reference Macro Attributes” |
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A Sequence that provides reference to a set of non-image SOP Class/Instance pairs significantly related to this Image, including waveforms that may or may not be temporally synchronized with this image. One or more Items shall be included in this Sequence. Required if waveforms are acquired in conjunction with image acquisition. May be present otherwise. |
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>Include Table 10-11 “SOP Instance Reference Macro Attributes” |
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Code describing the purpose of the reference to the Instance(s). |
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DCID 7004 “Waveform Purpose of Reference” for referenced waveforms. |
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Number of stages in this protocol. Required if Performed Protocol Type (0040,0261) is present with value STAGED. |
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A number that identifies the Stage. Stage Number starts at one. Required if Performed Protocol Type (0040,0261) is present with value STAGED. |
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Sequence describing the performed Ultrasound Protocol Stage. Only a single Item shall be included in this Sequence. Required if Performed Protocol Type (0040,0261) is present with value STAGED. |
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Include Table 10-24 “Mandatory View and Slice Progression Direction Macro Attributes” |
See Section C.8.5.6.1.19 for CIDs. |
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Sequence of time intervals of significance to this image. Each Item describes one time interval either beginning or ending at Acquisition DateTime (0008,002A). |
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Signed value of the time between Acquisition DateTime (0008,002A) and the event, in milliseconds. Positive values indicate the event occurs after Acquisition DateTime (0008,002A). |
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Name that identifies the event timer. May be used in addition to Event Time Code Sequence to offer site-specific user-readable event time names. |
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Include Table 10-5 “General Anatomy Mandatory Macro Attributes” |
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Indicates whether or not 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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See Section C.7.6.1.1.6 for further explanation. |
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>Include Table 10.36-1 “Device Identification Macro Attributes” |
Device Type Code Sequence (3010,002E) BCID 12035 “Ultrasound Transducer Application”. |
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The scan pattern the transducer is capable of. Only a single Item shall be included in this Sequence. See Section C.8.24.3.4 for further explanation. |
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Geometric structure of the transducer. Only a single Item shall be included in this Sequence. See Section C.8.24.3.4 for further explanation. |
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Technique used by the transducer for beam steering. One or more Items shall be included in this Sequence. If more than one Item is present, the order is significant from plane-forming technique to volume-forming technique. See Section C.8.24.3.4 for further explanation. |
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The primary clinical application of the transducer. Only a single Item shall be included in this Sequence. See Section C.8.24.3.4 for further explanation. |
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Manufacturer defined description of processing of echo information. Data may include code or description of gain (initial, overall, TGC, dynamic range, etc.), pre-processing, post-processing, Doppler processing parameters, e.g., cutoff filters, etc., as used in generating a given image. |
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See Section C.8.5.6.1.8 for Description. |
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See Section C.8.5.6.1.8 for Description. |
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See Section C.8.5.6.1.8 for Description. |
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See Section C.8.5.6.1.8 for Description. |
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The depth or depths from the transducer face, of the manufacturer defined beam focus points used for the image, in mm. |
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The depth, in mm, from the transducer face to the deepest point included in the image- the field of view. |
Pixel Representation (0028,0103) is specified to be Type 1 with the constraint that VR for all the pixel data will always be unsigned (US) and not signed (SS).
The real-world values that are inherently signed (e.g., Flow Velocity, Tissue Velocity, Variance) are represented as unsigned, unitless pixel values and may be mapped to signed real-world quantities via the Section C.7.6.16.2.11 Real World Value Mapping Macro.
DICOM PS3.3 2024d - Information Object Definitions |
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