X-Ray 3D Acquisition Sequence

(0018,9507)

1

Each Item represents an acquisition context related to one or more reconstructions.

The values of Acquisition Index (0020,9518) may be used as index in this Sequence.

One or more Items shall be included in this Sequence.

>Field of View Shape

(0018,1147)

1

Shape of the Field of View in the source projection images.

>X-Ray Receptor Type

(0018,9420)

1

Identifies the type of X-Ray receptor used.

>Include Table C.8.21.3.1.1-1 “X-Ray 3D General Shared Acquisition Macro Attributes”

>Include Table C.8.21.3.1.3-1 “X-Ray 3D General Positioner Movement Macro Attributes”

>Distance Source to Detector

(0018,1110)

1

Distance in mm from source to detector center on the chest wall line.

>Distance Source to Patient

(0018,1111)

1

Distance in mm from source to the breast support side that is closest to the Imaging Subject, as measured along the X-Ray beam vector.

>Estimated Radiographic Magnification Factor

(0018,1114)

1

Ratio of Source Image Receptor Distance (SID) over Source Object Distance (SOD).

>Anode Target Material

(0018,1191)

1

The primary material in the anode of the X-Ray source.

>Body Part Thickness

(0018,11A0)

1

The average thickness in mm of the body part examined when compressed, if compression has been applied during exposure.

>Exposure Control Mode

(0018,7060)

1

Type of exposure control.

>Exposure Control Mode Description

(0018,7062)

1

Text description of the mechanism of exposure control.

May describe the number and type of exposure sensors or position of the sensitive area of the imaging detector.

>Half Value Layer

(0040,0314)

1

The thickness of Aluminum in mm required to reduce the X-Ray Output (0040,0312) by a factor of two.

>Organ Dose

(0040,0316)

3

Organ dose value measured in dGy representing the collective total for all acquired frames described in this Sequence Item.

>Entrance Dose in mGy

(0040,8302)

3

Entrance dose value measured in mGy at the surface of the patient representing the collective total for all acquired frames described in this Sequence Item.

>Entrance Dose Derivation

(0040,8303)

3

Describes what type of dose is represented by the values of Entrance Dose in mGy (0040,8302).

Only meaningful if Entrance Dose in mGy (0040,8302) is present.

>Focal Spot(s)

(0018,1190)

1

Nominal focal spot size in mm used to acquire the projection images.

>Detector Binning

(0018,701A)

1C

Number of active detectors used to generate a single pixel. Specified as number of row detectors per pixel then column.

Required if detector binning was applied to the projection images.

>Detector Temperature

(0018,7001)

1

Detector temperature during exposure in degrees Celsius.

>Filter Type

(0018,1160)

1

Type of filter(s) inserted into the X-Ray beam (e.g., wedges). See Attribute Description in Section C.8.7.10 for Defined Terms.

>Filter Material

(0018,7050)

1

The X-Ray absorbing material used in the filter. May be multi-valued.

See Annex P “Correspondence of X-Ray Filter Material Codes and Defined Terms” in PS3.16 for Defined Terms.

>Filter Thickness Minimum

(0018,7052)

3

See Attribute Description in Section C.8.7.10.

>Filter Thickness Maximum

(0018,7054)

3

See Attribute Description in Section C.8.7.10.

>Filter Beam Path Length Minimum

(0018,7056)

3

See Attribute Description in Section C.8.7.10.

>Filter Beam Path Length Maximum

(0018,7058)

3

See Attribute Description in Section C.8.7.10.

>Compression Force

(0018,11A2)

1

The compression force applied to the body part during exposure, measured in Newtons.

>Compression Pressure

(0018,11A3)

3

The average compression pressure applied to the body part during exposure, calculated in kPa.

>Compression Contact Area

(0018,11A5)

3

The area of the body part to which compression has been applied during exposure, measured in mm2.

>Paddle Description

(0018,11A4)

1

Description of the compression paddle, if compression was applied to the body part during exposure.

>Per Projection Acquisition Sequence

(0018,9538)

1

Sequence containing detailed acquisition context of each individual projection used in this acquisition context.

One or more Items shall be included in this Sequence.

>>Include Table C.8.21.3.1.2-1 “X-Ray 3D General Per Projection Acquisition Macro Attributes”

>>Positioner Primary Angle

(0018,1510)

1

Signed position in degrees of the X-Ray beam vector in the coronal anatomical plane as if the patient were standing facing the equipment where vertical is zero.

>>Positioner Primary Angle Direction

(0018,9559)

3

The interpretation of the sign of the Positioner Primary Angle (0018,1510).

See Section C.8.31.2.1.

>>Positioner Secondary Angle

(0018,1511)

1C

Position in degrees of the X-Ray beam vector in the sagittal anatomical plane as if the patient were standing where movement of the X-Ray source from anterior to posterior is positive, and vertical is zero.

Required if secondary positioner was used during acquisition.

>>Exposure Time in ms

(0018,9328)

1

Duration of X-Ray exposure in milliseconds. See Section C.8.7.2.1.1.

>>Exposure in mAs

(0018,9332)

1

The exposure expressed in milliampereseconds, for example calculated from Exposure Time and X-Ray Tube Current.

>>Relative X-Ray Exposure

(0018,1405)

1

Indication of the applied dose, in manufacturer specific units.

>>Organ Dose

(0040,0316)

3

Average organ dose value measured in dGy.

>>Entrance Dose in mGy

(0040,8302)

3

Average entrance dose value measured in mGy at the surface of the patient during the acquisition of this projection image.

>>Entrance Dose Derivation

(0040,8303)

3

Describes what type of dose is represented by the values of Entrance Dose in mGy (0040,8302).

Only meaningful if Entrance Dose in mGy (0040,8302) is present.

>>Include Table 10-23 “Exposure Index Macro Attributes”

>>Irradiation Event UID

(0008,3010)

3

Unique identification of the irradiation event(s) associated with the acquisition of this image.