Image Type Attribute
| Tag | (0008,0008) |
|---|---|
| Type | Required (1) |
| Keyword | ImageType |
| Value Multiplicity | 2-n |
| Value Representation | Code String (CS) |
| Example Values |
|
Image identification characteristics.
See Section C.8.21.6.1.1 for specialization.
Section C.8.21.6.1.1
C.8.21.6.1.1 Image Type and Frame Type
In addition to the requirements specified in Section C.8.21.1.1.1 Image Type and Frame Type, the following Defined Terms are specified for Value 3 of Image Type (0008,0008) and Frame Type (0008,9007):
Table C.8.21.6-1a. Defined Terms of Image Type (0008,0008) Value 3 for Contrast Enhanced, Tomosynthesis and Biopsy
|
Defined Term |
Definition |
ACR MQCM Equivalent |
|---|---|---|
|
Contrast |
||
|
PRE_CONTRAST |
Collected before contrast was administered. |
n/a |
|
POST_CONTRAST |
Collected during or after contrast was administered. |
n/a |
|
Tomosynthesis |
||
|
TOMO_PROJ |
Identifies the image as a digital breast tomosynthesis projection image. |
n/a |
|
TOMOSYNTHESIS |
Tomographic reconstruction from limited angle projection data. |
n/a |
|
Biopsy |
||
|
TOMO_SCOUT |
A localizer image set that may be used to determine positioning coordinates prior to needle positioning. |
…SC |
|
PREFIRE |
An image set obtained with the biopsy needle in position prior to needle deployment. |
…PRF |
|
POSTFIRE |
An image set obtained with the biopsy needle in position following needle deployment through the targeted lesion. |
…POF |
|
POSTBIOPSY |
An image set obtained following tissue acquisition with the X-Ray source in the scout position. |
…POB |
|
POSTMARKER |
An image set obtained following micromarker placement with the X-Ray source in the scout position. |
…POM |
Note
There is no need for _MINUS or _PLUS because a single digital breast tomosynthesis acquisition produces a projection and/or reconstruction image set that replaces the _MINUS and _PLUS image pair used in conventional 2D breast biopsy imaging (see Section C.8.11.7.1.4).
If more than one characteristic (biopsy, tomosynthesis, contrast enhanced) applies to an image, Value 3 shall contain the biopsy image type. If biopsy is not involved, Value 3 shall contain the tomosynthesis image type.
Note
For example, Attributes of the Enhanced Contrast/Bolus Module may be used to identify contrast enhanced characteristics of a biopsy and/or tomosynthesis image that is also contrast enhanced.
Value 4 shall be NONE except for applicable contrast enhanced images, mathematically generated 2D images and other tomosynthesis reconstructions. The following Defined Terms are specified for Value 4 of Image Type (0008,0008) and Frame Type (0008,9007). For additional Defined Terms see Section C.8.16.1.4.
Table C.8.21.6-1b. Defined Terms of Image Type (0008,0008) Value 4 for Contrast Enhanced and Tomosynthesis
|
Defined Term |
Definition |
|---|---|
|
Tomosynthesis |
|
|
GENERATED_2D |
Mathematically generated 2D view. |
|
MAXIMUM |
Created through Pixel by pixel maximum operation. |
|
MEAN |
Created through Pixel by pixel mean operation. |
|
Contrast |
|
|
ADDITION |
Created through Pixel by pixel addition operation. |
|
SUBTRACTION |
Created through Pixel by pixel subtraction operation. |
If more than one characteristic (contrast enhanced, tomosynthesis) applies to an image, Value 4 shall contain the contrast enhanced image type. If contrast enhanced is not involved, Value 4 shall contain the tomosynthesis image type.
Value 5 shall be present for images acquired using contrast enhanced digital X-Ray imaging of the breast, but may be empty if none of the Defined Terms applies. For non-contrast images Value 5 remains optional and implementation specific.
Table C.8.21.6-1c. Defined Terms of Image Type (0008,0008) Value 5 for Contrast Enhanced Images
|
Enumerated Value |
Definition |
|---|---|
|
LOW_ENERGY |
Low energy image. |
|
HIGH_ENERGY |
High energy image. |
Note
A recipient may use the different values for biopsy, tomosynthesis and contrast views to determine how to display them, for example in hanging protocols:
|
|
Image Type Value 3 |
Image Type Value 4 |
Image Type Value 5 |
|---|---|---|---|
|
Tomosynthesis thin reconstructed slices |
TOMOSYNTHESIS |
NONE |
- |
|
Tomosynthesis thick reconstructed slices |
TOMOSYNTHESIS |
MAXIMUM |
- |
|
Tomosynthesis generated 2D |
TOMOSYNTHESIS |
GENERATED_2D |
- |
|
Tomosynthesis projections |
TOMO_PROJ |
NONE |
- |
|
Tomosynthesis thin reconstructed slices biopsy post-fire |
POSTFIRE |
NONE |
- |
|
Tomosynthesis thick reconstructed slices post-biopsy |
POSTBIOPSY |
MEAN |
- |
|
Tomosynthesis generated 2D biopsy pre-fire |
PREFIRE |
GENERATED_2D |
- |
|
Tomosynthesis projections biopsy scout |
TOMO_SCOUT |
NONE |
- |
|
Tomosynthesis thick reconstructed slices pre-contrast |
TOMOSYNTHESIS |
MAXIMUM |
empty |
|
Tomosynthesis thin reconstructed slices post-contrast subtraction |
TOMOSYNTHESIS |
SUBTRACTION |
empty |
|
Tomosynthesis thick reconstructed slices post-contrast subtraction |
TOMOSYNTHESIS |
SUBTRACTION |
empty |
|
Tomosynthesis generated 2D post-contrast addition |
TOMOSYNTHESIS |
ADDITION |
empty |
|
Tomosynthesis generated 2D post-contrast low energy |
TOMOSYNTHESIS |
GENERATED_2D |
LOW_ENERGY |
|
Tomosynthesis projections post-contrast high energy |
TOMO_PROJ |
NONE |
HIGH_ENERGY |
|
Tomosynthesis thick reconstructed slices biopsy scout pre-contrast |
TOMO_SCOUT |
MAXIMUM |
empty |
|
Tomosynthesis thin reconstructed slices biopsy pre-fire post-contrast subtraction |
PREFIRE |
SUBTRACTION |
empty |
|
Tomosynthesis thick reconstructed slices biopsy post-fire post-contrast subtraction |
POSTFIRE |
SUBTRACTION |
empty |
|
Tomosynthesis generated 2D post-biopsy post-contrast addition |
POSTBIOPSY |
ADDITION |
empty |
|
Tomosynthesis generated 2D biopsy scout post-contrast low energy |
TOMO_SCOUT |
GENERATED_2D |
LOW_ENERGY |
|
Tomosynthesis projections post-biopsy post-contrast high energy |
POSTBIOPSY |
NONE |
HIGH_ENERGY |