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Page 1536​

DICOM PS3.3 2020a - Information Object Definitions​

Note​

1.​Both Requesting Service (0032,1033) and Requesting Service Code Sequence (0032,1034) are defined in this table;​ the latter is preferred, but the former may be copied from an HL7 message whether or not there is also the ability to​ map it to a coded form (e.g., with only ORC-17 component 1 valued).​

C.30.4.1 Patient Identification​

For workitems that have a patient as the subject or context, the Patient ID, Issuer of Patient ID, Patient's Name, Patient's Sex and​ Patient's Birth Date shall have appropriate values.​

For workitems that have an identifiable subject that is nota patient, for examplea phantomto be scanned or a displayto be calibrated,​ the Patient ID shall be filled with an acceptable pseudo-patient value.​

Note​

For an object with a hospital asset control number or a manufacturer's serial number, that number might be used as the​ Patient ID. The Issuer of Patient ID would identify the hospital asset control system or the device manufacturer. Alternatively,​ it is conceivable that a Patient ID could be generated by the ADT or the local John Doe procedure (to avoid conflicting with​ an ID assigned to a real patient).​

The Patient Name might be set to CT^Phantom or ReadingRoom1Display.​

C.31 Radiotherapy Workflow Modules​

C.31.1 RT General Machine Verification Module​

Table C.31-1 specifies the Attributes used to convey the parameters used in external verification of both conventional radiotherapy​ (photon or electron) and ion treatment deliveries.​

Table C.31-1. RT General Machine Verification Module Attributes​

Attribute Name​

Tag​

 

Description​

Referenced RT Plan Sequence​

(300C,0002)​

A reference to an RT Plan SOP Class/Instance pair.​

 

 

Only a single Item shall be included in this Sequence.​

>Include Table 10-11 “SOP Instance Reference Macro​

 

 

Attributes”​

 

 

 

Referenced Fraction Group​

(300C,0022)​

Identifier of Fraction Group within referenced RT Plan.​

Number​

 

 

 

Patient ID​

(0010,0020)​

Primary identifier for the patient.​

Include Table 10-18 “Issuer of Patient ID Macro Attributes”​

 

 

Treatment Verification Status​

(3008,002C)​

Conditionsunderwhichtreatmentwasverifiedbyaverificationsystem.​

 

 

Enumerated Values:​

 

 

VERIFIED​

treatment verified​

 

 

VERIFIED_OVR​treatment verified with at least one out-of-range​

 

 

 

value overridden​

 

 

NOT_VERIFIED​treatment failed verification (one or more values​

 

 

 

out of range and not overridden)​

Failed Parameters Sequence​

(0074,1048)​

List of parameters that failed verification by the MPV.​

 

 

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

See Section C.31.1.1.​

>Include Table 10-20 “Selector Attribute Macro Attributes”​

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DICOM PS3.3 2020a - Information Object Definitions​

Page 1537​

Attribute Name​

Tag​

 

Description​

 

Overridden Parameters Sequence​

(0074,104A)​

List of parameters that were overridden by the user.​

 

 

 

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

 

 

 

See Section C.31.1.1.​

 

>Include Table 10-20 “Selector Attribute Macro Attributes”​

 

 

 

>Operators' Name​

(0008,1070)​

Name of operator who authorized override of overridden parameter.​

>Operator Identification Sequence​

(0008,1072)​

Identification of the operator who authorized override. Only a single​

 

 

Item is permitted in this Sequence.​

 

>>Include Table 10-1 “Person Identification Macro Attributes Description”​

 

>Override Reason​

(3008,0066)​

User-defined description of reason for override of overridden​

 

 

parameter.​

 

General Machine Verification​

(0074,1042)​

Sequence containing general machine verification parameters.​

Sequence​

 

Zero or one Item shall be included in this Sequence.​

 

 

 

 

>Specified Primary Meterset​

(3008,0032)​

Desired machine setting of primary Meterset. The units shall match​

 

 

those specified by Primary Dosimeter Unit (300A,00B3) in the plan​

 

 

specified in the Referenced RT Plan Sequence (300C,0002).​

>Specified Secondary Meterset​

(3008,0033)​

DesiredmachinesettingofsecondaryMeterset.Theunitsshallmatch​

 

 

those specified for Specified Secondary Meterset (3008,0033) in the​

 

 

plan specified in the Referenced RT Plan Sequence (300C,0002).​

>Specified Treatment Time​

(3008,003A)​

Treatment Time set in seconds.​

 

>Beam Limiting Device Leaf Pairs​

(3008,00A0)​

Beamlimitingdevice(collimator)jaworleaf(element)leafpairvalues.​

Sequence​

 

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

 

 

 

 

>>RT Beam Limiting Device Type​

(300A,00B8)​

Type of beam limiting device (collimator).​

 

 

 

Enumerated Values:​

 

 

 

X​

symmetric jaw pair in IEC X direction​

 

 

 

Y​

symmetric jaw pair in IEC Y direction​

 

 

 

ASYMX​asymmetric jaw pair in IEC X direction​

 

 

 

ASYMY​asymmetric pair in IEC Y direction​

 

 

 

MLCX​multileaf (multi-element) jaw pair in IEC X direction​

 

 

MLCY​multileaf (multi-element) jaw pair in IEC Y direction​

>>Number of Leaf/Jaw Pairs​

(300A,00BC)​

Number of leaf (element) or jaw pairs (equal to 1 for standard beam​

 

 

limiting device jaws).​

 

>Recorded Wedge Sequence​

(3008,00B0)​

Treatment wedges present during delivered Beam.​

 

 

 

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

 

>>Wedge Number​

(300A,00D2)​

Identification number of the Wedge. The value of Wedge Number​

 

 

(300A,00D2) shall be unique within the Wedge Sequence.​

>>Wedge ID​

(300A,00D4)​

User-supplied identifier for wedge.​

 

>>Wedge Angle​

(300A,00D5)​

Nominal wedge angle delivered in degrees.​

 

>>Wedge Orientation​

(300A,00D8)​

Orientation of wedge, i.e., orientation of the IEC WEDGE FILTER​

 

 

coordinate system with respect to the IEC BEAM LIMITING DEVICE​

 

 

coordinate system, in degrees.​

 

>>Accessory Code​

(300A,00F9)​

An identifier for the accessory intended to be read by a device such​

 

 

as a bar-code reader.​

 

>Recorded Compensator​

(3008,00C0)​

Treatment compensators associated with current Beam.​

Sequence​

 

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

 

 

 

 

- Standard -​

Page 1538​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Description​

>>Compensator ID​

(300A,00E5)​

User-supplied identifier for compensator.​

>>Accessory Code​

(300A,00F9)​

An identifier for the accessory intended to be read by a device such​

 

 

as a bar-code reader.​

>>Compensator Tray ID​

(300A,00EF)​

User-supplied identifier for compensator tray.​

>>Referenced Compensator​

(300C,00D0)​

Uniquely identifies compensator specified by Compensator Number​

Number​

 

(300A,00E4) within Beam referenced by Referenced Beam Number​

 

 

(300C,0006).​

>Recorded Block Sequence​

(3008,00D0)​

Blocks associated with current Beam.​

 

 

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

>>Block Tray ID​

(300A,00F5)​

User-supplied identifier for block tray or Electron Insert.​

>>Accessory Code​

(300A,00F9)​

An identifier for the accessory intended to be read by a device such​

 

 

as a bar-code reader.​

>>Referenced Block Number​

(300C,00E0)​

Uniquely identifies block specified by Block Number (300A,00FC)​

 

 

within Beam referenced by Referenced Beam Number (300C,0006).​

>Treatment Machine Name​

(300A,00B2)​

User-definednameidentifyingtreatmentmachinetobeusedforbeam​

 

 

delivery. See Section C.8.8.25.2.​

>Beam Name​

(300A,00C2)​

User-defined name for Beam.​

>Radiation Type​

(300A,00C6)​

Particle type of Beam.​

 

 

Enumerated Values:​

 

 

PHOTON​

 

 

ELECTRON​

 

 

NEUTRON​

 

 

PROTON​

 

 

ION​

>Number of Wedges​

(300A,00D0)​

Number of wedges associated with current Beam.​

>Number of Compensators​

(300A,00E0)​

Number of compensators associated with current Beam.​

>Number of Boli​

(300A,00ED)​

Number of boli used with current Beam.​

>Number of Blocks​

(300A,00F0)​

NumberofshieldingblocksorElectronInsertsassociatedwithBeam.​

>Applicator Sequence​

(300A,0107)​

Applicators associated with Beam.​

 

 

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

>>Accessory Code​

(300A,00F9)​

An identifier for the accessory intended to be read by a device such​

 

 

as a bar-code reader.​

>>Applicator ID​

(300A,0108)​

User or machine supplied identifier for Applicator.​

>>Applicator Type​

(300A,0109)​

Type of Applicator.​

 

 

Enumerated Values:​

 

 

ELECTRON_SQUARE​square electron applicator​

 

 

ELECTRON_RECT​ rectangular electron applicator​

 

 

ELECTRON_CIRC​ circular electron applicator​

 

 

ELECTRON_SHORT​short electron applicator​

 

 

ELECTRON_OPEN​open (dummy) electron applicator​

 

 

INTRAOPERATIVE​ intraoperative (custom) applicator​

 

 

STEREOTACTIC​ stereotactic applicator​

>Number of Control Points​

(300A,0110)​

Number of control points in Beam.​

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 1539​

Attribute Name​

Tag​

Description​

 

>Patient Setup Sequence​

(300A,0180)​

Patient setup data for current plan.​

 

 

 

One or more Items are permitted in this Sequence.​

 

>>Patient Setup Number​

(300A,0182)​

Identification number of the Patient Setup.​

 

>>Fixation Device Sequence​

(300A,0190)​

Fixation Devices used in Patient Setup.​

 

 

 

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

 

>>>Accessory Code​

(300A,00F9)​

An identifier for the accessory intended to be read by a device such​

 

 

as a bar-code reader.​

 

>>>Fixation Device Type​

(300A,0192)​

Type of Fixation Device used during Patient Setup.​

 

 

 

Enumerated Values:​

 

 

 

BITEBLOCK​

 

 

 

HEADFRAME​

 

 

 

MASK​

 

 

 

MOLD​

 

 

 

CAST​

 

 

 

HEADREST​

 

 

 

BREAST_BOARD​

 

 

 

BODY_FRAME​

 

 

 

VACUUM_MOLD​

 

 

 

WHOLE_BODY_POD​

 

 

 

RECTAL_BALLOON​

 

>Referenced Beam Number​

(300C,0006)​

References Beam specified by Beam Number (300A,00C0) in Beam​

 

 

Sequence (300A,00B0) in RT Beams Module of referenced RT Plan​

 

 

orinIonBeamSequence(300A,03A2)inRTIonBeamsModulewithin​

 

 

the referenced RT Ion Plan.​

 

>Referenced Bolus Sequence​

(300C,00B0)​

Boli associated with Beam.​

 

 

 

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

 

>>Referenced ROI Number​

(3006,0084)​

Uniquely identifies ROI representing the Bolus specified by ROI​

 

 

Number (3006,0022) in Structure Set ROI Sequence (3006,0020) in​

 

 

StructureSetModulewithinRTStructureSetinReferencedStructure​

 

 

Set Sequence (300C,0060) in RT General Plan Module.​

>>Accessory Code​

(300A,00F9)​

An accessory identifier to be read by a device such as a bar code​

 

 

reader.​

 

C.31.1.1 Failed Parameters and Overridden Parameters​

Each Verify Failed Parameter or Overridden Parameter is used to specify a verification Attribute that was either unverified (out of​ range), or overridden explicitly by the user. To uniquely identify both the context and value item of the Attribute occurrence, a special​ notation is used, described in Section 10.17.​

If a Verify Failed Parameter or Overridden Parameter refers to an Attribute occurrence within a Control Point Sequence, then that​ Attribute occurrence was failed or overridden during the administration of the beam segment immediately prior to the specified​ control point.​

C.31.2 RT Conventional Machine Verification Module​

Table C.31-2 specifies the Attributes used to convey the parameters used in external verification of a conventional radiotherapy​ (photon or electron) treatment delivery.​

- Standard -​

Page 1540​ DICOM PS3.3 2020a - Information Object Definitions​

Table C.31-2. RT Conventional Machine Verification Module Attributes​

Attribute Name​

Tag​

 

Description​

Conventional Machine​

(0074,1044)​

Sequence containing conventional machine verification parameters.​

Verification Sequence​

 

Zero or one Item shall be included in this Sequence.​

 

 

>Conventional Control Point​

(0074,104C)​

Beam control points for current treatment beam.​

Verification Sequence​

 

Only a single Item shall be included in this Sequence.​

 

 

>>Nominal Beam Energy​

(300A,0114)​

Nominal Beam Energy at control point.​

>>Dose Rate Set​

(300A,0115)​

Dose Rate to be set on treatment machine for segment beginning at current​

 

 

control point (e.g., MU/min).​

>>Wedge Position Sequence​

(300A,0116)​

Wedge Positions for the current control point.​

 

 

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

 

 

See Section C.8.8.14.5.​

>>>Wedge Position​

(300A,0118)​

Position of Wedge at current Control Point.​

 

 

Enumerated Values:​

 

 

IN​

 

 

 

OUT​

 

>>>Referenced Wedge Number​

(300C,00C0)​

Uniquely references Wedge described by Wedge Number (300A,00D2) in​

 

 

Wedge Sequence (300A,00D1).​

>>BeamLimitingDevicePosition​

(300A,011A)​

Beam limiting device (collimator) jaw or leaf (element) positions.​

Sequence​

 

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

 

 

>>>RT Beam Limiting Device​

(300A,00B8)​

Type of beam limiting device (collimator). The value of this Attribute shall​

Type​

 

correspondtoRTBeamLimitingDeviceType(300A,00B8)definedinanItem​

 

 

of Beam Limiting Device Sequence (300A,00B6)​

 

 

Enumerated Values:​

 

 

X​

symmetric jaw pair in IEC X direction​

 

 

Y​

symmetric jaw pair in IEC Y direction​

 

 

ASYMX​asymmetric jaw pair in IEC X direction​

 

 

ASYMY​asymmetric pair in IEC Y direction​

 

 

MLCX​multileaf (multi-element) jaw pair in IEC X direction​

 

 

MLCY​multileaf (multi-element) jaw pair in IEC Y direction​

>>>Leaf/Jaw Positions​

(300A,011C)​

Positions of beam limiting device (collimator) leaf (element) or jaw pairs in​

 

 

mm in the IEC BEAM LIMITING DEVICE coordinate axis appropriate to RT​

 

 

Beam Limiting Device Type (300A,00B8), e.g., X-axis for MLCX, Y-axis for​

 

 

MLCY. Contains 2N values, where N is the Number of Leaf/Jaw Pairs​

 

 

(300A,00BC) in Beam Limiting Device Sequence (300A,00B6). Values shall​

 

 

be listed in the IEC leaf (element) subscript order 101, 102, … 1N, 201, 202,​

 

 

… 2N.​

 

>>Gantry Angle​

(300A,011E)​

Gantry angle in degrees of radiation source, i.e., orientation of the IEC​

 

 

GANTRY coordinate system with respect to the IEC FIXED REFERENCE​

 

 

coordinate system.​

- Standard -​

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