Table C.8.17.7-1 specifies the Attributes that describe an Image produced by Ophthalmic Tomography imaging modalities.
Table C.8.17.7-1. Ophthalmic Tomography Image Module Attributes
|
Attribute Name |
Tag |
Type |
Attribute Description |
|---|---|---|---|
|
Image Type |
(0008,0008) |
1 |
Image identification characteristics. See Section C.7.6.1.1.2 for Enumerated Values and Defined Terms and further explanation. |
|
Samples Per Pixel |
(0028,0002) |
1 |
Number of samples (planes) in this image. See Section C.7.6.3.1.1 for further explanation. Enumerated Values:
|
|
Acquisition DateTime |
(0008,002A) |
1 |
The date and time that the acquisition of data started. NoteThe synchronization of this time with an external clock is specified in the synchronization Module in Acquisition Time synchronized (0018,1800). |
|
Acquisition Duration |
(0018,9073) |
1C |
The scan time in seconds used to create all frames of an Ophthalmic Tomography image. Required if Image Type (0008,0008) Value 1 is ORIGINAL. May be present otherwise. |
|
Acquisition Number |
(0020,0012) |
1 |
A number identifying the single continuous gathering of data over a period of time that resulted in this image. |
|
Photometric Interpretation |
(0028,0004) |
1 |
Specifies the intended interpretation of the pixel data. Enumerated Values:
|
|
Pixel Representation |
(0028,0103) |
1 |
Data representation of pixel samples. Enumerated Values:
|
|
Bits Allocated |
(0028,0100) |
1 |
Number of bits allocated for each pixel sample. Each sample shall have the same number of bits allocated. Enumerated Values:
|
|
Bits Stored |
(0028,0101) |
1 |
Number of bits stored for each pixel sample. Each sample shall have the same number of bits stored. Enumerated Values:
|
|
High Bit |
(0028,0102) |
1 |
Most significant bit for pixel sample data. Each sample shall have the same high bit. High Bit (0028,0102) shall be one less than Bits Stored |
|
Presentation LUT Shape |
(2050,0020) |
1 |
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. Enumerated Values:
|
|
Lossy Image Compression |
(0028,2110) |
1 |
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. |
|
Lossy Image Compression Ratio |
(0028,2112) |
1C |
Describes the approximate lossy compression ratio(s) that have been applied to this image. Required if Lossy Image Compression (0028,2110) is "01". |
|
Lossy Image Compression Method |
(0028,2114) |
1C |
A label for the lossy compression method(s) that have been applied to this image. Required if Lossy Image Compression (0028,2110) is "01". |
|
Burned In Annotation |
(0028,0301) |
1 |
Indicates whether or not image contains sufficient burned in annotation to identify the patient and date the image was acquired. Enumerated Values:
|
|
Recognizable Visual Features |
(0028,0302) |
3 |
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. Enumerated Values:
If this Attribute is absent, then the image may or may not contain recognizable visual features. |
|
Concatenation Frame Offset Number |
(0020,9228) |
1 |
Offset of the first frame in a multi-frame image of a concatenation. Enumerated Values:
|
|
In-concatenation Number |
(0020,9162) |
1 |
Identifier for one SOP Instance belonging to a concatenation. Enumerated Values:
|
|
In-concatenation Total Number |
(0020,9163) |
1 |
The number of SOP Instances sharing the same Concatenation UID (0020,9161). Enumerated Values:
|
|
Image Comments |
(0020,4000) |
3 |
User-defined comments about the image |
The value constraints on Concatenation Frame Offset Number (0020,9228), In-concatenation Number (0020,9162), and In-concatenation Total Number (0020,9163) have the effect of requiring the entire image to be in one concatenation.