| 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.
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 |
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.
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. |
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 |