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VMAT1

Rx: 23.4Gy/13fx

 

10 arc, 5 isocenter treatment delivery

Beams
DVH
Metrics

Name (ID): Craniospinal Pro1, (Craniospinal Pro1)
Plan or PlanSum ID: SX1VMAT90_2ID

Structure IDStructure CodePatient StructureDVH ObjectiveEvaluatorVariationPriorityMetAchieved
1. PTV-24 PH11. PTV-24 PH1V23.4Gy[%]>=8075Goal83.90 %
1. PTV-24 PH11. PTV-24 PH1V22.23Gy[%]>=9998Goal99.81 %
S-Total KidneyS-Total KidneyV33%[Gy]<6Goal5.87 Gy
S-Total LungS-Total LungMean[Gy]<5Goal4.548 Gy
S-OesophagusS-OesophagusMean[%]<50Goal49.7 %
S-ThyroidS-ThyroidMean[%]<50Goal42.6 %
C-Lens- LtC-Lens- LtD0.03cc[Gy]<=510Goal0.000 Gy
C-Lens- RtC-Lens- RtD0.03cc[Gy]<=510Goal3.707 Gy
Technical Plan Comments

This plan was created using the "auto feathering" Photon Optimizer calculation option in Eclipse 15.5+.  This feature automatically creates robust junctions between isocenters by enforcing overlapping linear slope low dose gradients between beams of neighboring isocenters.  Five (5) isocenters were employed 14cm apart in the Z direction with two full arcs at each isocenter.  All arcs were optimized simultaniously also empolying the "do not enter through" optimization feature on the arm expansion contour (also availible in Eclipse 15.5+).  Finally, for this plan to be treated, each isocenter has to be placed into it's own plan with imaging fields added.  Then, each plan would be delivered seperatley at the treatment machine.

Links

Review 3rd party software generated full treatment plan report

PDF

                              

Download full DICOM CT, struct, plan and dose file         

ZIP        

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.
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