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IMRT1

Rx: 55Gy/20fx

 

 

0:44 LtTangent (035) RtTangent (215) 2 field treatment delivery time

 

Beams
DVH
Metrics

Name (ID): WholeBrainHCS40, WholeBrainHCS40 (HCSWB40), (006002357)
Plan or PlanSum ID: TangnormScIrF

Structure IDStructure CodePatient StructureDVH ObjectiveEvaluatorVariationPriorityMetAchieved
PARTSCALPPartScalpD80%[Gy]>=5550Goal55.130 Gy
PARTSCALPPartScalpV52.25Gy[%]>=9998Goal100.00 %
WHOLEBRAINWholeBrainD5%[Gy]<=510Goal1.577 Gy
Technical Plan Comments

Due to the unflattened nature of the 6MV beam, traditional “2D” treatment techniques cannot be employed on most normal sized targets.  Often, the inverse planning optimizer is employed to deliver a homogenous dose distribution to the target, which requires a target volume.  However, in this case tangent beams were placed visually on screen using the beams eye view.  Once verifying the isocenter was placed inside the tissue to be treated, MLC shapes were drawn, the irregular surface compensator was used to create the fluence and dose was calculated.  No edits to the the ideal fluence were employed as the plan looked reasonable and no bolus was used.  This type of plan turned out to be a very good example of a simple forward planned workflow.

Finally, the skin flash tool was employed on both beams to create 2-3cm of fluence extension into air.

Links

Review 3rd party software generated full treatment plan report

PDF

                              

Download full DICOM CT, struct, plan and dose file         

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Any reference to a "plan study" are simply what the organizers call each case and may not be a "study" in the FDA sense as they may not have been published in a peer reviewed journal.
Varian does not provide medical advice and these are illustrative examples only.
Leading plans by expert planner. Your results may vary.

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