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(0018,9507) X-Ray 3D Acquisition Sequence1Sequence
(0008,2112) Source Image Sequence1CSequence
(0018,0010) Contrast/Bolus Agent1CLong String
(0018,0012) Contrast/Bolus Agent Sequence1CSequence
(0018,0060) KVP1CDecimal String
(0018,1006) Grid ID3Long String
(0018,1110) Distance Source to Detector1CDecimal String
(0018,1147) Field of View Shape1CCode String
(0018,1160) Filter Type1CShort String
(0018,1166) Grid1CCode String
(0018,1190) Focal Spot(s)1CDecimal String
(0018,1411) Exposure Index3Decimal String
(0018,1412) Target Exposure Index3Decimal String
(0018,1413) Deviation Index3Decimal String
(0018,6000) Sensitivity3Decimal String
(0018,7000) Detector Conditions Nominal Flag3Code String
(0018,7001) Detector Temperature3Decimal String
(0018,7004) Detector Type2Code String
(0018,7005) Detector Configuration3Code String
(0018,7006) Detector Description3Long Text
(0018,7008) Detector Mode3Long Text
(0018,700A) Detector ID3Short String
(0018,700C) Date of Last Detector Calibration3Date
(0018,700E) Time of Last Detector Calibration3Time
(0018,7010) Exposures on Detector Since Last Calibration3Integer String
(0018,7011) Exposures on Detector Since Manufactured3Integer String
(0018,7012) Detector Time Since Last Exposure3Decimal String
(0018,701A) Detector Binning3Decimal String
(0018,7020) Detector Element Physical Size3Decimal String
(0018,7022) Detector Element Spacing3Decimal String
(0018,7024) Detector Active Shape3Code String
(0018,7026) Detector Active Dimension(s)3Decimal String
(0018,7028) Detector Active Origin3Decimal String
(0018,702A) Detector Manufacturer Name3Long String
(0018,702B) Detector Manufacturer's Model Name3Long String
(0018,7030) Field of View Origin1CDecimal String
(0018,7032) Field of View Rotation1CDecimal String
(0018,7034) Field of View Horizontal Flip1CCode String
(0018,7040) Grid Absorbing Material3Long Text
(0018,7041) Grid Spacing Material3Long Text
(0018,7042) Grid Thickness3Decimal String
(0018,7044) Grid Pitch3Decimal String
(0018,7046) Grid Aspect Ratio3Integer String
(0018,7048) Grid Period3Decimal String
(0018,704C) Grid Focal Distance3Decimal String
(0018,7050) Filter Material1CCode String
(0018,7052) Filter Thickness Minimum1CDecimal String
(0018,7054) Filter Thickness Maximum1CDecimal String
(0018,7056) Filter Beam Path Length Minimum1CSingle
(0018,7058) Filter Beam Path Length Maximum1CSingle
(0018,9328) Exposure Time in ms1CDouble
(0018,9330) X-Ray Tube Current in mA1CDouble
(0018,9332) Exposure in mAs1CDouble
(0018,9402) Distance Source to Isocenter1CSingle
(0018,9420) X-Ray Receptor Type1CCode String
(0018,9429) Physical Detector Size1CSingle
(0018,9430) Position of Isocenter Projection1CSingle
(0018,9461) Field of View Dimension(s) in Float1CSingle
(0018,9466) Table X Position to Isocenter3Single
(0018,9467) Table Y Position to Isocenter3Single
(0018,9468) Table Z Position to Isocenter3Single
(0018,9469) Table Horizontal Rotation Angle3Single
(0018,9470) Table Head Tilt Angle3Single
(0018,9471) Table Cradle Tilt Angle3Single
(0018,9508) Primary Positioner Scan Arc1CSingle
(0018,9509) Secondary Positioner Scan Arc1CSingle
(0018,9510) Primary Positioner Scan Start Angle1CSingle
(0018,9511) Secondary Positioner Scan Start Angle1CSingle
(0018,9514) Primary Positioner Increment1CSingle
(0018,9515) Secondary Positioner Increment1CSingle
(0018,9516) Start Acquisition DateTime1CDate Time
(0018,9517) End Acquisition DateTime1CDate Time
(0018,9518) Primary Positioner Increment Sign3Signed Short
(0018,9519) Secondary Positioner Increment Sign3Signed Short
(0018,9538) Per Projection Acquisition Sequence1CSequence
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Built with by Innolitics, a team of medical imaging software developers.

Data synced with official DICOM standard on 12 May 2020. The DICOM Standard is under continuous maintenance, and the current official version is available at http://www.dicomstandard.org/current/. DICOM Parts 3, 4, and 6, © NEMA. Please note that the most recent PDF version of the standard is the official reference, and should checked when making technical decisions.

Table Y Position to Isocenter Attribute

Tag(0018,9467)
TypeOptional (3)
KeywordTableYPositionToIsocenter
Value Multiplicity1
Value RepresentationSingle (FL)

Y position of the Table Reference Point with respect to the Isocenter (mm).

See Section C.8.19.6.13.1.3 for further explanation.

Section C.8.19.6.13.1.3

C.8.19.6.13.1.3 Table Coordinate System

The table coordinate system (Ot, Xt, Yt, Zt) is defined as follows:

- Origin Ot, so-called Table Reference Point, is on the Table Top plane

- +Xt direction to the TABLE LEFT

- +Zt direction to the TABLE HEAD

- +Yt direction to the TABLE DOWN

The table coordinate system (Ot, Xt, Yt, Zt) is characterized, with respect to the Isocenter coordinate system (O, X, Y, Z), by a 3D translation and 3 angles describing the tilting and rotation:

Table X Position to Isocenter (0018,9466) (so-called TX in Figure C.8.19.6-8) is defined as the translation of the Table Reference Point Ot with respect to the Isocenter Coordinate System in the X direction. Table motion toward +X is positive.

Table Y Position to Isocenter (0018,9467) (so-called TY in Figure C.8.19.6-8) is defined as the translation of the Table Reference Point Ot with respect to the Isocenter Coordinate System in the Y direction. Table motion toward +Y is positive.

Table Z Position to Isocenter (0018,9468) (so-called TZ in Figure C.8.19.6-8) is defined as the translation of the Table Reference Point Ot with respect to the Isocenter Coordinate System in the Z direction. Table motion toward +Z is positive.

Note

A translation of ( TX,TY,TZ ) = (0, 0, 0) means that the Table Reference Point Ot is at the System Isocenter.

Table Horizontal Rotation Angle (so-called At1 in Figure C.8.19.6-9) is defined in the horizontal plane XZ, as the angle of the projection of the +Zt axis in the XZ plane relative to the +Z axis. The axis of rotation of this angle is the vertical axis crossing the Table Reference Point Ot. Zero value is defined when the projection of +Zt in the XZ plane is equal to +Z. Angle from +Z to +X is positive. The valid range of this angle is -180 to +180 degrees.

Table Head Tilt Angle (so-called At2 in Figure C.8.19.6-9) is defined in the vertical plane containing Zt (i.e., YZt), as the angle of the +Zt axis relative to the horizontal plane XZ. The axis of rotation of this angle is defined as the intersection between the horizontal plane XZ and the plane XtYt. Zero value is defined when +Zt is contained in the horizontal plane XZ. Angle from horizontal (plane XZ) to -Y direction (upwards) is positive, indicating that the head of the table is above the horizontal plane. The valid range of this angle is -45 to +45 degrees.

Table Cradle Tilt Angle (so-called At3 in Figure C.8.19.6-9) is defined in the XtYt plane, as the angle of the +Xt axis relative to the intersection between the XtYt plane and the horizontal plane XZ. The axis of rotation of this angle is the axis Zt. Zero value is defined when +Xt is contained in the horizontal plane XZ. Angle from horizontal (plane XZ) to -Y direction (upwards) is positive, indicating that the left of the table is above the horizontal plane. The valid range of this angle is -45 to +45 degrees.

Note

The angles At1 , At2 and At3 are independent from any specific mechanical design of the table rotation axis defined by a manufacturer. In particular, they don't require the three rotation axis to cross on a single point. If a mechanical rotation axis does not cross the Table Reference Point Ot, a mechanical rotation around this axis will generate a change in one or more table angles as well as a translation of the Table Reference Point.

Figure C.8.19.6-8. Table Translation with respect to the Isocenter Reference System


Figure C.8.19.6-9. Table Angulations with respect to the Isocenter Reference System