Computed Radiography ImageCIOD
CT ImageCIOD
MR ImageCIOD
Nuclear Medicine ImageCIOD
Ultrasound ImageCIOD
Ultrasound Multi-frame ImageCIOD
Secondary Capture ImageCIOD
Multi-frame Single Bit Secondary Capture ImageCIOD
Multi-frame Grayscale Byte Secondary Capture ImageCIOD
Multi-frame Grayscale Word Secondary Capture ImageCIOD
Multi-frame True Color Secondary Capture ImageCIOD
X-Ray Angiographic ImageCIOD
X-Ray Radiofluoroscopic ImageCIOD
RT ImageCIOD
RT DoseCIOD
RT Structure SetCIOD
RT PlanCIOD
PatientMModule - Patient
Clinical Trial SubjectUModule - Patient
General StudyMModule - Study
Patient StudyUModule - Study
Clinical Trial StudyUModule - Study
RT SeriesMModule - Series
Clinical Trial SeriesUModule - Series
Frame of ReferenceUModule - Frame of Reference
General EquipmentMModule - Equipment
RT General PlanMModule - Plan
RT PrescriptionUModule - Plan
RT Tolerance TablesUModule - Plan
RT Patient SetupUModule - Plan
RT Fraction SchemeUModule - Plan
RT BeamsCModule - Plan
(300A,00B0) Beam Sequence1Sequence
(0008,0070) Manufacturer3Long String
(0008,0080) Institution Name3Long String
(0008,0081) Institution Address3Short Text
(0008,1040) Institutional Department Name3Long String
(0008,1041) Institutional Department Type Code Sequence3Sequence
(0008,1090) Manufacturer's Model Name3Long String
(0008,1156) Definition Source Sequence3Sequence
(0018,1000) Device Serial Number3Long String
(0018,1204) Date of Manufacture3Date
(0018,1205) Date of Installation3Date
(3002,0050) Primary Fluence Mode Sequence3Sequence
(3008,00A1) Enhanced RT Beam Limiting Device Sequence1CSequence
(0008,0070) Manufacturer2Long String
(0008,1090) Manufacturer's Model Name2Long String
(0018,1000) Device Serial Number2Long String
(0018,100A) UDI Sequence3Sequence
(0018,1020) Software Versions2Long String
(0018,1204) Date of Manufacture3Date
(0018,1205) Date of Installation3Date
(0050,0021) Long Device Description3Short Text
(300A,0602) Referenced Defined Device Index1CUnsigned Short
(300A,060E) Referenced RT Accessory Holder Device Index2CUnsigned Short
(300A,0611) RT Accessory Holder Slot ID2CLong String
(300A,0613) RT Accessory Slot Distance2CDouble
(300A,0615) RT Accessory Device Slot ID2CLong String
(300A,0642) RT Beam Limiting Device Proximal Distance2Double
(300A,0643) RT Beam Limiting Device Distal Distance2Double
(300A,0645) Beam Modifier Orientation Angle1Double
(300A,0646) Fixed RT Beam Delimiter Device Sequence1CSequence
(300A,0647) Parallel RT Beam Delimiter Device Sequence1CSequence
(3010,001A) Manufacturer's Model Version2Long String
(3010,001B) Device Alternate Identifier2Unlimited Characters
(3010,001C) Device Alternate Identifier Type1CCode String
(3010,001D) Device Alternate Identifier Format1CLong Text
(3010,002D) Device Label1Long String
(3010,002E) Device Type Code Sequence1Sequence
(3010,0039) Device Index1Unsigned Short
(3010,0043) Manufacturer's Device Identifier2Short Text
(3008,00A3) Enhanced RT Beam Limiting Device Definition Flag3Code String
(300A,00B2) Treatment Machine Name2Short String
(300A,00B3) Primary Dosimeter Unit3Code String
(300A,00B4) Source-Axis Distance3Decimal String
(300A,00B6) Beam Limiting Device Sequence1CSequence
(300A,00C0) Beam Number1Integer String
(300A,00C2) Beam Name3Long String
(300A,00C3) Beam Description3Short Text
(300A,00C4) Beam Type1Code String
(300A,00C6) Radiation Type2Code String
(300A,00C7) High-Dose Technique Type1CCode String
(300A,00CA) Planned Verification Image Sequence3Sequence
(300A,00CE) Treatment Delivery Type3Code String
(300A,00D0) Number of Wedges1Integer String
(300A,00D1) Wedge Sequence1CSequence
(300A,00E0) Number of Compensators1Integer String
(300A,00E2) Total Compensator Tray Factor3Decimal String
(300A,00E3) Compensator Sequence1CSequence
(300A,00ED) Number of Boli1Integer String
(300A,00F0) Number of Blocks1Integer String
(300A,00F2) Total Block Tray Factor3Decimal String
(300A,00F4) Block Sequence1CSequence
(300A,0107) Applicator Sequence3Sequence
(300A,010E) Final Cumulative Meterset Weight1CDecimal String
(300A,0110) Number of Control Points1Integer String
(300A,0111) Control Point Sequence1Sequence
(300A,0420) General Accessory Sequence3Sequence
(300C,0042) Referenced Reference Image Sequence3Sequence
(300C,0050) Referenced Dose Reference Sequence3Sequence
(300C,006A) Referenced Patient Setup Number3Integer String
(300C,0080) Referenced Dose Sequence3Sequence
(300C,00A0) Referenced Tolerance Table Number3Integer String
(300C,00B0) Referenced Bolus Sequence1CSequence
(3010,0038) Entity Long Label3Long String
RT Brachy Application SetupsCModule - Plan
ApprovalUModule - Plan
General ReferenceUModule - Plan
SOP CommonMModule - Plan
Common Instance ReferenceUModule - Plan
Positron Emission Tomography ImageCIOD
Digital X-Ray ImageCIOD
Digital Mammography X-Ray ImageCIOD
Digital Intra-Oral X-Ray ImageCIOD
RT Beams Treatment RecordCIOD
RT Brachy Treatment RecordCIOD
RT Treatment Summary RecordCIOD
VL Endoscopic ImageCIOD
VL Microscopic ImageCIOD
VL Slide-Coordinates Microscopic ImageCIOD
VL Photographic ImageCIOD
Video Endoscopic ImageCIOD
Video Microscopic ImageCIOD
Video Photographic ImageCIOD
VL Whole Slide Microscopy ImageCIOD
Real-Time Video Endoscopic ImageCIOD
Real-Time Video Photographic ImageCIOD
Dermoscopic Photography ImageCIOD
Grayscale Softcopy Presentation StateCIOD
Color Softcopy Presentation StateCIOD
Pseudo-Color Softcopy Presentation StateCIOD
Blending Softcopy Presentation StateCIOD
Basic Structured DisplayCIOD
XA/XRF Grayscale Softcopy Presentation StateCIOD
Advanced Blending Presentation StateCIOD
Variable Modality LUT Softcopy Presentation StateCIOD
Basic Voice Audio WaveformCIOD
12-Lead ECGCIOD
General ECGCIOD
Ambulatory ECGCIOD
Hemodynamic WaveformCIOD
Basic Cardiac Electrophysiology WaveformCIOD
Arterial Pulse WaveformCIOD
Respiratory WaveformCIOD
General Audio WaveformCIOD
Real-Time Audio WaveformCIOD
Routine Scalp ElectroencephalogramCIOD
ElectromyogramCIOD
ElectrooculogramCIOD
Sleep ElectroencephalogramCIOD
Multi-channel Respiratory WaveformCIOD
Body Position WaveformCIOD
General 32-bit ECGCIOD
Basic Text SRCIOD
Enhanced SRCIOD
Comprehensive SRCIOD
Key Object Selection DocumentCIOD
Mammography CAD SRCIOD
Chest CAD SRCIOD
Procedure LogCIOD
X-Ray Radiation Dose SRCIOD
Spectacle Prescription ReportCIOD
Colon CAD SRCIOD
Macular Grid Thickness and Volume ReportCIOD
Implantation Plan SR DocumentCIOD
Comprehensive 3D SRCIOD
Radiopharmaceutical Radiation Dose SRCIOD
Extensible SRCIOD
Acquisition Context SRCIOD
Simplified Adult Echo SRCIOD
Patient Radiation Dose SRCIOD
Planned Imaging Agent Administration SRCIOD
Performed Imaging Agent Administration SRCIOD
Rendition Selection DocumentCIOD
Enhanced X-Ray Radiation Dose SRCIOD
Enhanced MR ImageCIOD
MR SpectroscopyCIOD
Enhanced MR Color ImageCIOD
Raw DataCIOD
Enhanced CT ImageCIOD
Spatial RegistrationCIOD
Deformable Spatial RegistrationCIOD
Spatial FiducialsCIOD
Ophthalmic Photography 8 Bit ImageCIOD
Ophthalmic Photography 16 Bit ImageCIOD
Stereometric RelationshipCIOD
Hanging ProtocolCIOD
Encapsulated PDFCIOD
Encapsulated CDACIOD
Real World Value MappingCIOD
Enhanced XA ImageCIOD
Enhanced XRF ImageCIOD
RT Ion PlanCIOD
RT Ion Beams Treatment RecordCIOD
SegmentationCIOD
Ophthalmic Tomography ImageCIOD
X-Ray 3D Angiographic ImageCIOD
X-Ray 3D Craniofacial ImageCIOD
Breast Tomosynthesis ImageCIOD
Enhanced PET ImageCIOD
Surface SegmentationCIOD
Color PaletteCIOD
Enhanced US VolumeCIOD
Lensometry MeasurementsCIOD
Autorefraction MeasurementsCIOD
Keratometry MeasurementsCIOD
Subjective Refraction MeasurementsCIOD
Visual Acuity MeasurementsCIOD
Ophthalmic Axial MeasurementsCIOD
Intraocular Lens CalculationsCIOD
Generic Implant TemplateCIOD
Implant Assembly TemplateCIOD
Implant Template GroupCIOD
RT Beams Delivery InstructionCIOD
Ophthalmic Visual Field Static Perimetry MeasurementsCIOD
Intravascular Optical Coherence Tomography ImageCIOD
Ophthalmic Thickness MapCIOD
Surface Scan MeshCIOD
Surface Scan Point CloudCIOD
Legacy Converted Enhanced CT ImageCIOD
Legacy Converted Enhanced MR ImageCIOD
Legacy Converted Enhanced PET ImageCIOD
Corneal Topography MapCIOD
Breast Projection X-Ray ImageCIOD
Parametric MapCIOD
Wide Field Ophthalmic Photography Stereographic Projection ImageCIOD
Wide Field Ophthalmic Photography 3D Coordinates ImageCIOD
Tractography ResultsCIOD
RT Brachy Application Setup Delivery InstructionCIOD
Planar MPR Volumetric Presentation StateCIOD
Volume Rendering Volumetric Presentation StateCIOD
Content Assessment ResultsCIOD
CT Performed Procedure ProtocolCIOD
CT Defined Procedure ProtocolCIOD
Protocol ApprovalCIOD
XA Performed Procedure ProtocolCIOD
XA Defined Procedure ProtocolCIOD
Ophthalmic Optical Coherence Tomography En Face ImageCIOD
Ophthalmic Optical Coherence Tomography B-scan Volume AnalysisCIOD
Encapsulated STLCIOD
Encapsulated OBJCIOD
Encapsulated MTLCIOD
RT Physician IntentCIOD
RT Segment AnnotationCIOD
RT Radiation SetCIOD
C-Arm Photon-Electron RadiationCIOD
Tomotherapeutic RadiationCIOD
Robotic-Arm RadiationCIOD
RT Radiation Record SetCIOD
RT Radiation Salvage RecordCIOD
C-Arm Photon-Electron Radiation RecordCIOD
Tomotherapeutic Radiation RecordCIOD
Robotic-Arm Radiation RecordCIOD
RT Radiation Set Delivery InstructionCIOD
RT Treatment PreparationCIOD
Enhanced RT ImageCIOD
Enhanced Continuous RT ImageCIOD
RT Patient Position Acquisition InstructionCIOD
Microscopy Bulk Simple AnnotationsCIOD
InventoryCIOD
Photoacoustic ImageCIOD
Confocal Microscopy ImageCIOD
Confocal Microscopy Tiled Pyramidal ImageCIOD
Basic DirectoryCIOD

Built with by Innolitics, a team of medical imaging software developers.

Data synced with official DICOM standard on 18 April 2024. 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.

Beam Modifier Orientation Angle Attribute

Tag(300A,0645)
TypeRequired (1)
KeywordBeamModifierOrientationAngle
Value Multiplicity1
Value RepresentationDouble (FD)

Angle in degrees of the Beam Modifier Coordinate System with respect to the Base Beam Modifier Coordinate System. The angle is a Continuous Rotation Angle, see Section C.36.1.1.5.

If Device Type Code Sequence (3010,002E) contains either (130331, DCM, "Leaf Pairs"), or (130333, DCM, "Single Leaves") the motion of the RT Beam Delimiters is along the x-axis of the Beam Modifier Definition Plane.

See Section C.36.1.1.9.

Section C.36.1.1.5

C.36.1.1.5 Continuous Rotation Angle

A Continuous Rotation Angle is an angle in the range (-∞,+∞).

Continuous Rotation Angle represent a rotation direction and magnitude. The magnitude is not limited to be between 0 and 360 degrees.

All rotations are defined in a right-handed coordinate system, thus the direction of a positive rotation is seen as clockwise when viewed in the positive direction of the axis of rotation.

Section C.36.1.1.9

C.36.1.1.9 Beam Modifier Coordinate System

Beam modifiers, e.g., beam limiting devices, compensators and blocks, are specified by geometric coordinates.

A Base Beam Modifier Coordinate System is defined with respect to a parent coordinate system, which may be the Equipment Coordinate System (see Section 10.39.1.1) or another coordinate system derived from the Equipment Coordinate System. Section C.36.12.2 specifies several Well-known Frames of Reference used as the Equipment Frame of Reference, and specifies how a Base Beam Modifier Coordinate System is related to each as a child coordinate system.

The x/y plane of the Base Beam Modifier Coordinate System is referred to as the Base Beam Modifier Definition Plane. The orientation of the Base Beam Modifier Coordinate System is such that the Base Beam Modifier Definition Plane is parallel to the x/y plane of the parent coordinate system. The origin of the Base Beam Modifier Coordinate System is offset from the RT Device Distance Reference Location by the RT Beam Modifier Definition Distance (300A,0688) as shown in Figure C.36.1-1.

Figure C.36.1-1. Base Beam Modifier Coordinate System and a rotated Beam Modifier Coordinate System


Each beam modifier is defined in its own Beam Modifier Coordinate System with the following characteristics:

  • Defined with respect to the Base Beam Modifier Coordinate System.

  • Right-handed Cartesian coordinate system, with the positive z-axis pointing towards the nominal Radiation Source location.

  • The Beam Modifier Coordinate System rotates about the z-axis of the Base Beam Modifier Coordinate System. The orientation at a zero angle about the z-axis is the same as the Base Beam Modifier Coordinate System, i.e., the x- and y-axes are aligned.

The x/y plane of the Beam Modifier Coordinate System is referred to as the Beam Modifier Definition Plane.