C.8.21.6 Breast View Module

C.8.21.6 Breast View Module (Current)
Prev	C.8.21 X-Ray 3D	Next

Table C.8.21.6-1 specifies the Attributes of the Breast View Module, which describe the view of a digital breast tomosynthesis image.

Table C.8.21.6-1. Breast View Module Attributes

Attribute Name	Tag	Type	Attribute Description
Image Type	(0008,0008)	1	Image identification characteristics. See Section C.8.21.6.1.1 for specialization.
View Code Sequence	(0054,0220)	1	Sequence that describes the view of the patient anatomy in this image. Only a single Item shall be included in this Sequence.
>Include Table 8.8-1 “Code Sequence Macro Attributes” .			DCID 4014 “View for Mammography”.
>View Modifier Code Sequence	(0054,0222)	2	Sequence that provides modifiers for the view of the patient anatomy. Zero or more Items shall be included in this Sequence.
>>Include Table 8.8-1 “Code Sequence Macro Attributes”.			DCID 4015 “View Modifier for Mammography”.
Breast Implant Present	(0028,1300)	1C	Whether or not the imaged breast contains a breast implant regardless of the visibility of a breast implant in the Pixel Data. Enumerated Values: YES NO Required if Modality (0008,0060) is MG. May be present otherwise. Note The value is expected to be YES for all images acquired on a breast that contains a breast implant, even when a breast implant is displaced during image acquisition.
Partial View	(0028,1350)	3	Indicates whether this image is a partial view, that is a subset of a single view of the breast. Enumerated Values: YES NO If this Attribute is absent, then the image may or may not be a partial view. Note This may occur when a breast is larger than the active area of the detector. If this Attribute is present, its Value shall be NO if there is a View Modifier Code Sequence (0054,0222) Item of Coded Entry Value (399163009, SCT, "Magnification") or (399055006, SCT, "Spot Compression").
Partial View Code Sequence	(0028,1352)	1C	Sequence that describes the portion or section of the breast captured in a partial view image. One or two Items shall be included in this Sequence. See Section C.8.11.7.1.3. Required if Partial View (0028,1350) is present with a Value of YES.
>Include Table 8.8-1 “Code Sequence Macro Attributes”			DCID 4005 “Partial View Section for Mammography”.

C.8.21.6.1 Breast View Module Attribute Description

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, which includes NONE. Value 4 is not permitted to be empty or absent.

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 or absent 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

Defined Terms	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. See examples in Table C.8.21.6-1d.
The entry "empty" in the table indicates that the value is present with zero length and a preceding delimiter (e.g. "Tomosynthesis thick reconstructed slices pre-contrast" has one empty value at the end and would be expressed as ORIGINAL\PRIMARY\TOMOSYNTHESIS\MAXIMUM\). Other empty or non-empty values may follow an empty value.
The entry "-" in the table indicates that the value is not present and neither is its preceding delimiter (e.g. "Tomosynthesis thin reconstructed slices" has one absent value at the end and would be expressed as ORIGINAL\PRIMARY\TOMOSYNTHESIS\NONE). No other values may follow an absent value.

Table C.8.21.6-1d. Example Image Type Values for the Breast View Module (Informative)

	Image Type (0008,0008) Value 3	Image Type (0008,0008) Value 4	Image Type (0008,0008) 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

Prev	Up	Next
C.8.21.5.2 Breast Biopsy Target Macro	Home	C.8.22 Enhanced PET Modules