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Page 796​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>>>Referenced Source​

(3008,0142)​

2​

IdentificationnumberoftheSourceApplicator.ThevalueofSource​

Applicator Number​

 

 

ApplicatorNumber(300A,0290)shallbeuniquewithintheChannel​

 

 

 

in which it is created.​

>>>Source Applicator ID​

(300A,0291)​

2​

User or machine supplied identifier for Source Applicator.​

>>>Source Applicator Type​

(300A,0292)​

1​

Type of Source Applicator.​

 

 

 

Defined Terms:​

 

 

 

FLEXIBLE​

 

 

 

RIGID​

>>>Source Applicator Name​

(300A,0294)​

3​

User-defined name for Source Applicator.​

>>>Source Applicator Length​

(300A,0296)​

1​

LengthofSourceApplicator(mm),definedasthedistancebetween​

 

 

 

the connector of the applicator and the distal-most position of the​

 

 

 

source.​

>>>SourceApplicatorTipLength​

(300A,0274)​

2C​

Length of Source Applicator Tip (in mm), defined as the distance​

 

 

 

between the outer tip of the applicator and the center of the​

 

 

 

distal-most possible position of the source.​

 

 

 

Required if Channel Effective Length (300A,0271) is present.​

 

 

 

See Section C.8.8.15.16.​

>>>Source Applicator​

(300A,0298)​

3​

Manufacturer of Source Applicator.​

Manufacturer​

 

 

 

>>>Source Applicator Step Size​

(300A,02A0)​

1C​

Distance of path along channel (mm) between adjacent (potential)​

 

 

 

dwell positions. Required if Source Movement Type (300A,0288)​

 

 

 

is STEPWISE.​

>>Transfer Tube Number​

(300A,02A2)​

2​

Identification number of the Transfer Tube. The value of Transfer​

 

 

 

Tube Number (300A,02A2) shall be unique within the Channel in​

 

 

 

which it is created.​

>>Transfer Tube Length​

(300A,02A4)​

2C​

Length of Transfer Tube of current afterloading Channel (mm).​

 

 

 

Required if value Transfer Tube Number (300A,02A2) is not zero​

 

 

 

length.​

>>Recorded Channel Shield​

(3008,0150)​

3​

Sequence of Channel Shields associated with current Channel.​

Sequence​

 

 

One or more Items are permitted in this Sequence.​

 

 

 

 

 

 

See RT Plan IOD for description of Channel Shields.​

>>>Referenced Channel Shield​

(3008,0152)​

2​

Identification number of the Channel Shield. The value of Channel​

Number​

 

 

Shield Number (300A,02B2) shall be unique within the Channel in​

 

 

 

which it is created.​

>>>Channel Shield ID​

(300A,02B3)​

2​

User or machine supplied identifier for Channel Shield.​

>>>Channel Shield Name​

(300A,02B4)​

3​

User-defined name for Channel Shield.​

>>Referenced Source Number​

(300C,000E)​

1​

Uniquely identifies the referenced Source within the Recorded​

 

 

 

Source Sequence (3008,0100) for current Application Setup.​

>>Safe Position Exit Date​

(3008,0162)​

1C​

Date on which the source(s) exited the safe. Required if Recorded​

 

 

 

Channel Sequence (3008,0130) is present and Brachy Treatment​

 

 

 

Type (300A,0202) is not MANUAL or PDR.​

>>Safe Position Exit Time​

(3008,0164)​

1C​

Timeonwhichthesource(s)exitedthesafe.RequiredifRecorded​

 

 

 

Channel Sequence (3008,0130) is present and Brachy Treatment​

 

 

 

Type (300A,0202) is not MANUAL or PDR.​

- Standard -​

 

DICOM PS3.3 2020a - Information Object Definitions​

Page 797​

Attribute Name​

Tag​

Type​

Attribute Description​

 

>>Safe Position Return Date​

(3008,0166)​

1C​

Date on which the source(s) returned to the safe. Required if​

 

 

 

Recorded Channel Sequence (3008,0130) is present and Brachy​

 

 

 

Treatment Type (300A,0202) is not MANUAL or PDR.​

>>Safe Position Return Time​

(3008,0168)​

1C​

Time on which the source(s) returned to the safe. Required if​

 

 

 

Recorded Channel Sequence (3008,0130) is present and Brachy​

 

 

 

Treatment Type (300A,0202) is not MANUAL or PDR.​

>>Number of Control Points​

(300A,0110)​

1​

Number of control points in Channel. For an N-segment Channel​

 

 

 

there will be 2N (stepwise movement) or N+1 (continuous​

 

 

 

movement) control points.​

 

>>BrachyControlPointDelivered​

(3008,0160)​

1​

Sequence of machine configurations describing this Channel.​

Sequence​

 

 

The number of Items in this Sequence shall equal the value of​

 

 

 

 

 

 

Number of Control Points (300A,0110).​

 

 

 

 

See RT Plan IOD and Section C.8.8.22.1 for description of Brachy​

 

 

 

Control Point Delivered Sequence.​

 

>>>Referenced Control Point​

(300C,00F0)​

3​

Index of current Control Point, starting at 0 for first Control Point.​

Index​

 

 

 

 

>>>TreatmentControlPointDate​

(3008,0024)​

1​

Date when the delivery of radiation at this control point began. For​

 

 

 

the final control point this shall be the Date when the previous​

 

 

 

control point ended.​

 

>>>TreatmentControlPointTime​

(3008,0025)​

1​

Time when the delivery of radiation at this control point began. For​

 

 

 

the final control point this shall be the Time when the previous​

 

 

 

control point ended.​

 

>>>Control Point Relative​

(300A,02D2)​

1​

Distance in mm between current Control Point Position and the​

Position​

 

 

center of the distal-most possible Source position in current​

 

 

 

Channel. See RT Plan IOD.​

 

>>>Override Sequence​

(3008,0060)​

3​

Sequence of parameters that were overridden during the​

 

 

 

administration of the treatment immediately prior to the current​

 

 

 

control point.​

 

 

 

 

One or more Items are permitted in this Sequence.​

 

>>>>OverrideParameterPointer​

(3008,0062)​

2​

ContainstheDataElementTagoftheAttributethatwasoverridden.​

>>>>Operators' Name​

(0008,1070)​

2​

Name of operator who authorized override.​

 

>>>>Operator Identification​

(0008,1072)​

3​

Identificationoftheoperatorwhoauthorizedoverride.Onlyasingle​

Sequence​

 

 

Item is permitted in this Sequence.​

 

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

 

Description”​

 

 

 

 

>>>>Override Reason​

(3008,0066)​

3​

User-defined description of reason for override of parameter​

 

 

 

specified by Override Parameter Pointer (3008,0062).​

>>Pulse Specific Brachy Control​

(3008,0171)​

3​

BrachyControlPointDeliveredSequenceforeachPDRtreatment​

Point Delivered Sequence​

 

 

pulse.​

 

 

 

 

Number of Items in the Sequence shall be equal to the Delivered​

 

 

 

Number of Pulses (3008,0138).​

 

>>>Pulse Number​

(3008,0172)​

1​

Identification Number of this delivered Pulse.​

 

 

 

 

The pulse numbers for a treatment start at 1 and increase​

 

 

 

monotonicallyby1.AgivenSOPinstancemightonlycontainsome​

 

 

 

of the pulses of the given treatment.​

 

>>>Safe Position Exit Date​

(3008,0162)​

1​

Date on which the source(s) exited the safe.​

 

>>>Safe Position Exit Time​

(3008,0164)​

1​

Time at which the source(s) exited the safe.​

 

- Standard -​

Page 798​

DICOM PS3.3 2020a - Information Object Definitions​

Attribute Name​

Tag​

Type​

Attribute Description​

>>>Safe Position Return Date​

(3008,0166)​

1​ Date on which the source(s) returned to the safe.​

>>>Safe Position Return Time​

(3008,0168)​

1​ Time at which the source(s) returned to the safe.​

>>>Brachy Pulse Control Point​

(3008,0173)​

1​ List of control points for this pulse.​

Delivered Sequence​

 

 

See Section C.8.8.22.1.​

 

 

 

>>>>Referenced Control Point​

(300C,00F0)​

3​ Index of current Control Point, starting at 0 for first Control Point​

Index​

 

 

in this Sequence.​

>>>>Treatment Control Point​

(3008,0024)​

1​ Date when the delivery of radiation at this control point began.​

Date​

 

 

For the final control point, this shall be the Date when the previous​

 

 

 

 

 

 

control point ended.​

>>>>Treatment Control Point​

(3008,0025)​

1​ Time when the delivery of radiation at this control point began.​

Time​

 

 

For the final control point, this shall be the Time when the previous​

 

 

 

 

 

 

control point ended.​

>>>>Control Point Relative​

(300A,02D2)​

1​ Distance in mm between current Control Point Position and the​

Position​

 

 

center of the distal-most possible Source position in current​

 

 

 

Channel.​

 

 

 

See Section C.8.8.15.9.​

>>>>Override Sequence​

(3008,0060)​

3​ Parameters which were overridden during the administration of​

 

 

 

the treatment immediately prior to the current control point.​

 

 

 

One or more Items are permitted in this Sequence.​

>>>>>Override Parameter​

(3008,0062)​

2​ Data Element Tag of the Attribute that was overridden.​

Pointer​

 

 

 

>>>>>Operators' Name​

(0008,1070)​

2​ Name of operator who authorized override.​

>>>>>Operator Identification​

(0008,1072)​

3​ Identificationoftheoperatorwhoauthorizedoverride.Onlyasingle​

Sequence​

 

 

Item is permitted in this Sequence.​

>>>>>>IncludeTable10-1“PersonIdentificationMacroAttributes​

Description”​

 

 

 

>>>>>Override Reason​

(3008,0066)​

3​ User-defined description of reason for override.​

Note​

The Referenced Verification Image Sequence (300C,0040) may contain either images taken specifically for verification of​ the brachy application setup or reference images used in place of verification images, as might be done in HDR treatment​ planning.​

C.8.8.22.1 PDR (Pulsed Dose Rate) Treatment​

In Brachytherapy treatment techniques where Brachy Treatment Type (300A,0202) is PDR, the Brachy Control Point Sequence​ (300A,02D0) shall consist of 2N Items, where N = Delivered Number of Pulses (3008,0138). Each control point pair shall represent​ a single pulse and consist of the first control point of the pulse and the last control point of the pulse.​

The Brachy Pulse Control Point Delivered Sequence (3008,0173) is consistent with the Brachy Control Point Delivered Sequence​ (3008,0160) as defined in the enclosing Recorded Channel Sequence (3008,0130) except all control points delivered are listed in​ thisSequenceasopposedtolistingonlythestartandendcontrolpointsintheBrachyControlPointDeliveredSequence(3008,0160).​

C.8.8.22.2 Specified Channel Total Time​

Total time is derived from the Brachy Control Point Sequence (300A,02D0) by scaling times for the current source delivery strength​ and accounting for other delivery device capabilities influencing the actual delivery.​

- Standard -​

DICOM PS3.3 2020a - Information Object Definitions​

Page 799​

In brachytherapy treatment techniques where Brachy Treatment Type (300A,0202) is PDR, the Specified Channel Total Time​ (3008,0132) shall consist of the specified channel total time summed over the Specified Number of Pulses (3008,0136).​

ThefollowingexamplesdescribethecontentsofSpecifiedChannelTotalTime(3008,0132),DeliveredChannelTotalTime(3008,0134)​ and Treatment Termination Status (3008,002A) under normal and interrupted delivery conditions.​

Example:​

•​Fraction delivered without interruption​

•​Session 1:​

•​Specified Channel Total Time = 100.0 seconds​

•​Delivered Channel Total Time = 100.0 seconds​

•​Treatment Termination Status = NORMAL​

•​Fraction delivered with interruption. Second session delivered in timely manner such that there is negligible source decay between​ sessions.​

•​Session 1:​

•​Specified Channel Total Time = 100.0 seconds​

•​Delivered Channel Total Time = 50.0 seconds​

•​Treatment Termination Status = OPERATOR or MACHINE​

•​Session 2:​

•​Specified Channel Total Time = 50.0 seconds​

•​Delivered Channel Total Time = 50.0 seconds​

•​Treatment Termination Status = NORMAL​

•​Fraction delivered with interruption. Second session delivered later such that additional source decay between sessions must be​ accounted for. In Session 2 the source is at approximately 96% of Session 1 strength.​

•​Session 1:​

•​Specified Channel Total Time = 100.0 seconds​

•​Delivered Channel Total Time = 50.0 seconds​

•​Treatment Termination Status = OPERATOR or MACHINE​

•​Session 2:​

•​Specified Channel Total Time = 52.0 seconds​

•​Delivered Channel Total Time = 52.0 seconds​

•​Treatment Termination Status = NORMAL​

- Standard -​

Page 800​ DICOM PS3.3 2020a - Information Object Definitions​

C.8.8.23 RT Treatment Summary Record Module​

Table C.8-59. RT Treatment Summary Record Module Attributes​

Attribute Name​

Tag​

Type​

Attribute Description​

Current Treatment Status​

(3008,0200)​

1​ Status of the Treatment at the time the Treatment Summary​

 

 

 

was created.​

 

 

 

Enumerated Values:​

 

 

 

NOT_STARTED​

 

 

 

ON_TREATMENT​

 

 

 

ON_BREAK​

 

 

 

SUSPENDED​

 

 

 

STOPPED​

 

 

 

COMPLETED​

 

 

 

See Section C.8.8.23.1.​

Treatment Status Comment​

(3008,0202)​

3​ Comment on current treatment status.​

First Treatment Date​

(3008,0054)​

2​ Date of delivery of the first treatment.​

Most Recent Treatment Date​

(3008,0056)​

2​ Date of delivery of the most recent administration.​

FractionGroupSummarySequence​

(3008,0220)​

3​ Sequence describing current state of planned vs. delivered​

 

 

 

fraction groups.​

 

 

 

One or more Items are permitted in this Sequence.​

>Referenced Fraction Group​

(300C,0022)​

3​ References Fraction Group Number (300A,0071) in Fraction​

Number​

 

 

Group Sequence (300A,0070) in the referenced RT Plan.​

>Fraction Group Type​

(3008,0224)​

2​ Indicates type of fraction group.​

 

 

 

Enumerated Values:​

 

 

 

EXTERNAL_BEAM​

 

 

 

BRACHY​

>Number of Fractions Planned​

(300A,0078)​

2​ Number of fractions planned for this fraction group.​

>Number of Fractions Delivered​

(3008,005A)​

2​ Number of fractions delivered as of Treatment Summary​

 

 

 

Report.​

>Fraction Status Summary​

(3008,0240)​

3​ Sequence describing status of fractions in Fraction Group.​

Sequence​

 

 

One or more Items are permitted in this Sequence.​

 

 

 

>>Referenced Fraction Number​

(3008,0223)​

1​

Identifies fraction.​

>>Treatment Date​

(3008,0250)​

2​ Date when fraction was delivered.​

>>Treatment Time​

(3008,0251)​

2​ Time when fraction was delivered.​

>>Treatment Termination Status​

(3008,002A)​

2​ Conditions under which treatment was terminated.​

Enumerated Values:​

NORMAL​ treatment terminated normally​

OPERATOR​operator terminated treatment​

MACHINE​machine terminated treatment for other than​

NORMAL condition​

UNKNOWN​status at termination unknown​

Treatment Summary Measured​ (3008,00E0)​ 3​ Sequence of references to Measured Dose References.​

Dose Reference Sequence​

One or more Items are permitted in this Sequence.​

- Standard -​