IMRT SX1

Name (ID): ROQS-22, HN(PinPC2013) (ROQS-22)
Plan or PlanSum ID: sf9smKVm5IDS1

This plan utilized nine (9) fields with manually selected gantry positions to follow the shape of the low dose target in the transverse view.  Also, beam edges were placed so a sharp gradient could be achieved against the highest value OARs  (parotids, submandibular glad, oral cavity, spinal cord).  From a beam's eye view, unique collimator rotations per field were selected to match the general angle of the target volume.

This static field IMRT plan scored better, retrospectivly, than any plan submitted to this 2012 plan challenge.

This 9F IMRT plan for an oropharyngeal primary treated bilaterally shows adequate coverage of the target, with no significant heterogeneities and outside of the target hotspots.  Sharp gradients are achieved around all OARs, with all being well within assigned constraints. The sharp gradients are so remarkable that it would be interesting to plan recurrent H&N cases for SBRT with this technique. This is a clinically acceptable plan.

 

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