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Basic Voice Audio WaveformCIOD
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SegmentationCIOD
Ophthalmic Tomography ImageCIOD
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PatientMModule - Patient
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
General SeriesMModule - Series
Clinical Trial SeriesUModule - Series
Enhanced Mammography SeriesMModule - Series
Frame of ReferenceMModule - Frame of Reference
SynchronizationCModule - Frame of Reference
General EquipmentMModule - Equipment
Enhanced General EquipmentMModule - Equipment
Image PixelMModule - Image
Enhanced Contrast/BolusCModule - Image
DeviceUModule - Image
InterventionUModule - Image
Acquisition ContextMModule - Image
Multi-frame Functional GroupsMModule - Image
Multi-frame DimensionUModule - Image
Image - Equipment Coordinate RelationshipUModule - Image
SpecimenUModule - Image
X-Ray 3D ImageMModule - Image
Breast Tomosynthesis Contributing SourcesUModule - Image
Breast Tomosynthesis AcquisitionUModule - Image
(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 Detector1Decimal String
(0018,1111) Distance Source to Patient1Decimal String
(0018,1114) Estimated Radiographic Magnification Factor1Decimal String
(0018,1147) Field of View Shape1Code String
(0018,1160) Filter Type1Short String
(0018,1166) Grid1CCode String
(0018,1190) Focal Spot(s)1Decimal String
(0018,1191) Anode Target Material1Code String
(0018,11A0) Body Part Thickness1Decimal String
(0018,11A2) Compression Force1Decimal String
(0018,11A3) Compression Pressure3Decimal String
(0018,11A4) Paddle Description1Long String
(0018,11A5) Compression Contact Area3Decimal String
(0018,7001) Detector Temperature1Decimal String
(0018,701A) Detector Binning1CDecimal 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 Material1Code String
(0018,7052) Filter Thickness Minimum3Decimal String
(0018,7054) Filter Thickness Maximum3Decimal String
(0018,7056) Filter Beam Path Length Minimum3Single
(0018,7058) Filter Beam Path Length Maximum3Single
(0018,7060) Exposure Control Mode1Code String
(0018,7062) Exposure Control Mode Description1Long Text
(0018,9328) Exposure Time in ms1CDouble
(0018,9330) X-Ray Tube Current in mA1CDouble
(0018,9332) Exposure in mAs1CDouble
(0018,9420) X-Ray Receptor Type1Code String
(0018,9461) Field of View Dimension(s) in Float1CSingle
(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 Sequence1Sequence
(0040,0314) Half Value Layer1Decimal String
(0040,0316) Organ Dose3Decimal String
(0040,8302) Entrance Dose in mGy3Decimal String
(0040,8303) Entrance Dose Derivation3Code String
X-Ray 3D ReconstructionUModule - Image
Breast ViewMModule - Image
SOP CommonMModule - Image
Common Instance ReferenceUModule - Image
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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.

Field of View Rotation Attribute

Tag(0018,7032)
TypeConditionally Required (1C)
KeywordFieldOfViewRotation
Value Multiplicity1
Value RepresentationDecimal String (DS)

Clockwise rotation in degrees of Field of View in the referenced images, relative to the physical detector.

Enumerated Values:

270

180

90

0

See Section C.8.11.4.1.1 for further explanation.

Required if present and consistent in the contributing SOP Instances.

Section C.8.11.4.1.1

C.8.11.4.1.1 Physical, Active, Field of View, Exposed and Displayed Areas

The relationship between the Physical Detector Area, the Active Detector Area, the Field of View (what is stored in Pixel Data (7FE0,0010)), the Exposed Area (after X-Ray Collimation) and the Displayed Area is illustrated in the following diagrams.

Note

Some of these Attributes relate the image data to manufacturer specific characteristics of the detector that may be used for quality control purposes, e.g., correlation of image artifacts with a detector defect map, analysis of noise performance, etc.

The Displayed Area is defined in pixel coordinates relative to the stored image pixel values by the Attributes of the Display Shutter Module (see Section C.7.6.11). If this Module is not present or supported, then the Displayed Area is equal to the Field of View.

The Exposed Area is defined in pixel coordinates relative to the stored image pixel values by the Attributes of the X-Ray Collimator Module (see Section C.8.7.3).

For the Digital X-Ray IODs, the Field of View is usually rectangular in shape and usually has the same size as the stored Pixel Data (7FE0,0010). The shape and size of the Field of View and the spacing of the pixels are defined by the following Attributes:

  • Field of View Shape (0018,1147),

  • Field of View Dimensions (0018,1149),

  • Imager Pixel Spacing (0018,1164),

  • Rows (0028,0010),

  • Columns (0028,0011).

In the case where the Field of View has the same size as the stored Pixel Data (7FE0,0010) the following relationships are verified:

If the Field of View Shape (0018,1147) Attribute equals RECTANGLE:

  • Field of View Dimensionsrow dimension = Imager Pixel Spacingrow spacing * Rows

  • Field of View Dimensionscolumn dimension = Imager Pixel Spacingcolumn spacing * Columns

If the Field of View Shape (0018,1147) Attribute equals ROUND or HEXAGONAL:

  • Field of View Dimensionsdiameter = Imager Pixel Spacingrow spacing * Rows

  • Field of View Dimensionsdiameter = Imager Pixel Spacingcolumn spacing * Columns

The following Attributes define the relationship of the Field of View to the Physical Detector Area:

  • Field of View Origin (0018,7030),

  • Field of View Rotation (0018,7032),

  • Field of View Horizontal Flip (0018,7034).

For the Digital X-Ray IODs, the Active Area, i.e., that part of the detector matrix that was activated for this exposure, is usually rectangular in shape. The shape and size of the Active Area and the size and spacing of the detectors are defined by the following Attributes:

  • Detector Active Shape (0018,7024),

  • Detector Active Dimensions (0018,7026),

  • Detector Element Physical Size (0018,7020),

  • Detector Element Spacing (0018,7022).

Note

  1. The Detector Element Physical Size (0018,7020) and Detector Element Spacing (0018,7022) may be different if there are insensitive regions between each detector.

  2. This model of description is not able to accurately describe multiple matrices of detectors that are "tiled" to produce a single image.

The following optional Attribute defines the relationship of the Active Area to the Physical Detector Area:

  • Detector Active Origin (0018,7028).

In the case where the Field of View has the same size as the stored Pixel Data (7FE0,0010), the relationship between detectors and stored image pixels is defined by Detector Binning (0018,701A), which specifies how many detectors, in each of the row and column directions, contribute to (are pooled or averaged to form) a single stored image pixel.

Note

  1. Detector Binning (0018,701A) may have values less than one if sub-sampling is used to derive an image with higher spatial resolution than the detector matrix.

  2. The detector binning results in the size of a stored image pixel being different from the contributing physical detector pixels. In this case it is important to notice that the Field Of View Origin (0018,7030) is defined with respect to the center of the detector element located at the TLHC of the Field of View.

  3. For images where the Field of View describes an area not equal to the size (rows and columns) of the stored Pixel Data (7FE0,0010), Detector Binning (0018,701A) does not fully specify the relationship between the contributing physical detector pixels and the stored image pixels.

Figure C.8-14. Explanation of Digital Detector Attributes


Figure C.8-15. Explanation of Digital Detector Attributes