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Page 1096​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>DistanceSourcetoDetector​

(0018,1110)​

1C​

Distancefromsourcetoreceptorplaneperpendiculartothereceptor​

 

 

 

plane in mm or distance in mm from source to detector center on​

 

 

 

the chest wall line. See Section C.8.11.7.1.1.​

 

 

 

Required if present and consistent in the contributing SOP​

 

 

 

Instances.​

 

 

 

Note​

 

 

 

This value is traditionally referred to as Source Image​

 

 

 

Receptor Distance (SID).​

>Distance Source to​

(0018,9402)​

1C​

Distance from source to isocenter in mm.​

Isocenter​

 

 

Required if present and consistent in the contributing SOP​

 

 

 

 

 

 

Instances.​

>Focal Spot(s)​

(0018,1190)​

1C​

Nominal focal spot size in mm used to acquire this image.​

 

 

 

Required if present and consistent in the contributing SOP​

 

 

 

Instances.​

>Filter Type​

(0018,1160)​

1C​

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.​

 

 

 

Note​

 

 

 

Multipletypeoffilterscanbeexpressedbyacombination,​

 

 

 

e.g., BUTTERFLY+WEDGE.​

 

 

 

Required if present and consistent in the contributing SOP​

 

 

 

Instances.​

>Filter Material​

(0018,7050)​

1C​

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

 

 

 

multi-valued. See Attribute Description in Section C.8.7.10 for​

 

 

 

Defined Terms.​

 

 

 

Required if present and consistent in the contributing SOP​

 

 

 

Instances.​

>Filter Thickness Minimum​

(0018,7052)​

1C​

See Attribute Description in Section C.8.7.10.​

 

 

 

Required if present and consistent in the contributing SOP​

 

 

 

Instances.​

>Filter Thickness Maximum​

(0018,7054)​

1C​

See Attribute Description in Section C.8.7.10.​

 

 

 

Required if present and consistent in the contributing SOP​

 

 

 

Instances.​

>Filter Beam Path Length​

(0018,7056)​

1C​

See Attribute Description in Section C.8.7.10.​

Minimum​

 

 

Required if present and consistent in the contributing SOP​

 

 

 

 

 

 

Instances.​

>Filter Beam Path Length​

(0018,7058)​

1C​

See Attribute Description in Section C.8.7.10.​

Maximum​

 

 

Required if present and consistent in the contributing SOP​

 

 

 

 

 

 

Instances.​

>Table X Position to​

(0018,9466)​

3​

XpositionoftheTableReferencePointwithrespecttotheIsocenter​

Isocenter​

 

 

(mm).​

See Section C.8.19.6.13.1.3 for further explanation.​

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 1097​

Attribute Name​

Tag​

Type​

Attribute Description​

 

>Table Y Position to​

(0018,9467)​

3​

YpositionoftheTableReferencePointwithrespecttotheIsocenter​

Isocenter​

 

 

(mm).​

 

 

 

 

See Section C.8.19.6.13.1.3 for further explanation.​

 

>Table Z Position to​

(0018,9468)​

3​

ZpositionoftheTableReferencePointwithrespecttotheIsocenter​

Isocenter​

 

 

(mm).​

 

 

 

 

See Section C.8.19.6.13.1.3 for further explanation.​

 

>Table Horizontal Rotation​

(0018,9469)​

3​

Rotation of the table in the horizontal plane.​

 

Angle​

 

 

See Section C.8.19.6.13.1.3 for further explanation.​

 

 

 

 

 

>Table Head Tilt Angle​

(0018,9470)​

3​

Angle of the head-feet axis of the table in degrees relative to the​

 

 

 

horizontal plane.​

 

 

 

 

See Section C.8.19.6.13.1.3 for further explanation.​

 

>Table Cradle Tilt Angle​

(0018,9471)​

3​

Angle of the left-right axis of the table in degrees relative to the​

 

 

 

horizontal plane.​

 

 

 

 

See Section C.8.19.6.13.1.3 for further explanation.​

 

>Include Table C.8.21.3.1.3-1 “X-Ray 3D General Positioner​

 

 

Movement Macro Attributes”​

 

 

 

 

>Per Projection Acquisition​

(0018,9538)​

1C​

Sequencecontainingdetailedacquisitioncontextofeachindividual​

Sequence​

 

 

projection used in this acquisition context.​

 

 

 

 

One or more Items shall be included in this Sequence.​

 

 

 

Required if present and consistent in the contributing SOP​

 

 

 

Instances.​

 

>>IncludeTableC.8.21.3.1.2-1“X-Ray3DGeneralPerProjection​

 

Acquisition Macro Attributes”​

 

 

 

 

>>Positioner Isocenter​

(0018,9463)​

1C​

PositionoftheX-Raycenterbeamforthisprojectionintheisocenter​

Primary Angle​

 

 

reference system in the X direction (deg).​

 

 

 

 

See Section C.8.19.6.13.1.2 for further explanation.​

 

 

 

 

Required if present and consistent in the contributing SOP​

 

 

 

Instances.​

 

>>Positioner Isocenter​

(0018,9464)​

1C​

PositionoftheX-Raycenterbeamforthisprojectionintheisocenter​

Secondary Angle​

 

 

reference system in the Z direction (deg).​

 

 

 

 

See Section C.8.19.6.13.1.2 for further explanation.​

 

 

 

 

Required if present and consistent in the contributing SOP​

 

 

 

Instances.​

 

>>Positioner Isocenter​

(0018,9465)​

1C​

Rotation of the X-Ray detector plane for this projection (deg).​

Detector Rotation Angle​

 

 

See Section C.8.19.6.13.1.2 for further explanation.​

 

 

 

 

 

 

 

 

Required if present and consistent in the contributing SOP​

 

 

 

Instances.​

 

>>Positioner Primary Angle​

(0018,1510)​

3​

Position of the X-Ray Image Intensifier about the patient from the​

 

 

 

RAO to LAO direction where movement from RAO to vertical is​

 

 

 

positive.​

 

See Section C.8.7.5.1.2 for further explanation.​

- Standard -​

Page 1098​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>>Positioner Secondary​

(0018,1511)​

3​

Position of the X-Ray Image Intensifier about the patient from the​

Angle​

 

 

CAU to CRA direction where movement from CAU to vertical is​

 

 

 

positive.​

See Section C.8.7.5.1.2 for further explanation.​

C.8.21.3.3 X-Ray 3D Craniofacial Acquisition Module​

This section describes the X-Ray 3D Craniofacial Acquisition Module.​

Table C.8.21.3.3-1. X-Ray 3D Craniofacial Acquisition Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

X-Ray 3D Acquisition​

(0018,9507)​

1​

Each Item represents a acquisition context related to a​

Sequence​

 

 

set of frames of SOP Instance defined by this IOD,​

 

 

 

The values of Acquisition Index (0020,9518) may be used​

 

 

 

as index to Items in this Sequence.​

 

 

 

One or more Items shall be included in this Sequence.​

>Field of View Shape​

(0018,1147)​

1C​

Shape of the Field of View in the referenced images.​

 

 

 

Enumerated Values:​

 

 

 

RECTANGLE​

 

 

 

ROUND​

 

 

 

HEXAGONAL​

 

 

 

RequiredifpresentandconsistentinthecontributingSOP​

 

 

 

Instances.​

>X-Ray Receptor Type​

(0018,9420)​

1C​

Identifies the type of X-Ray receptor used.​

 

 

 

Enumerated Values:​

 

 

 

DIGITAL_DETECTOR​

 

 

 

RequiredifpresentandconsistentinthecontributingSOP​

 

 

 

Instances.​

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

 

Macro Attributes”​

 

 

 

>Include Table C.8-71b “Digital X-Ray Detector Macro Attributes”​

 

>Per Projection Acquisition​

(0018,9538)​

1C​

Sequence containing detailed acquisition context of each​

Sequence​

 

 

individual projection used in this acquisition context.​

One or more Items shall be included in this Sequence.​

RequiredifpresentandconsistentinthecontributingSOP​

Instances.​

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

C.8.21.3.4 Breast Tomosynthesis Acquisition Module​

This section describes the Breast Tomosynthesis Acquisition Module.​

- Standard -​

DICOM PS3.3 2020a - Information Object Definitions​ Page 1099​

Table C.8.21.3.4-1. Breast Tomosynthesis Acquisition Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

X-Ray 3D Acquisition​

(0018,9507)​

1​ Each Item represents an acquisition context related to one or more​

Sequence​

 

 

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.​

 

 

 

Enumerated Values:​

 

 

 

RECTANGLE​

>X-Ray Receptor Type​

(0018,9420)​

1​ Identifies the type of X-Ray receptor used.​

Enumerated Values:​

DIGITAL_DETECTOR​

>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​

(0018,1110)​

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

Detector​

 

Note​

 

 

 

 

1.​This value is traditionally referred to as Source Image​

 

 

Distance (SID).​

 

 

2.​See Section C.8.11.7.1.1.​

>DistanceSourcetoPatient​

(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.​

 

 

Note​

 

 

1.​This value is traditionally referred to as Source Object​

 

 

Distance (SOD).​

 

 

2.​See notes for this Attribute in Section C.8.11.5 DX​

 

 

Positioning Module.​

 

 

3.​See Section C.8.11.7.1.1 for description of X-Ray beam​

 

 

vector.​

>Estimated Radiographic​

(0018,1114)​

1​ Ratio of Source Image Receptor Distance (SID) over Source Object​

Magnification Factor​

 

Distance (SOD).​

>Anode Target Material​

(0018,1191)​

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

 

 

Defined Terms:​

 

 

TUNGSTEN​

 

 

MOLYBDENUM​

 

 

RHODIUM​

>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.​

- Standard -​

Page 1100​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>Exposure Control Mode​

(0018,7060)​

1​ Type of exposure control.​

 

 

 

Defined Terms:​

 

 

 

MANUAL​

 

 

 

AUTOMATIC​

>Exposure Control Mode​

(0018,7062)​

1​ Text description of the mechanism of exposure control.​

Description​

 

 

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​ ThethicknessofAluminuminmmrequiredtoreducetheX-RayOutput​

 

 

 

(0040,0312) by a factor of two.​

 

 

 

Note​

 

 

 

This value may be a calibrated value rather than measured​

 

 

 

during the exposure.​

>Organ Dose​

(0040,0316)​

3​ Organ dose value measured in dGy representing the collective total​

 

 

 

for all acquired frames described in this Sequence Item.​

 

 

 

Note​

 

 

 

This may be an estimated value.​

>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.​

 

 

 

Note​

 

 

 

Thismaybeanestimatedvaluebasedonassumptionsabout​

 

 

 

the patient's body size and habitus.​

>Entrance Dose Derivation​

(0040,8303)​

3​ Describes what type of dose is represented by the values of Entrance​

 

 

 

Dose in mGy (0040,8302).​

 

 

 

Enumerated Values:​

 

 

 

IAK​

Represents air kerma at the entrance surface, no​

 

 

 

 

backscatter included, no air kerma to tissue dose​

 

 

 

 

conversion applied.​

 

 

 

ESAK​

Represents air kerma at the entrance surface, with​

 

 

 

 

backscatter included, no air kerma to tissue dose​

 

 

 

 

conversion applied.​

 

 

 

ESDBS​

Represents absorbed dose in tissue at the entrance​

 

 

 

 

surface, with backscatter included.​

 

 

 

ESDNOBS​Represents absorbed dose in tissue at the entrance​

 

 

 

 

surface, without backscatter included.​

 

 

 

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.​

- Standard -​

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