IMRT 9 Fields

This SIB Esophagus plan was generated using the Ethos Treatment Management system with the intent of daily online adaptive treatments. Planning directives were used to guide the intelligent optimization engine (IOE) to balance target coverage and OAR sparing in accordance with RTOG 1010 criteria.

Clinical goals for the PTV and heart were ranked with most importance to reduce hotspots and to improve the dose gradient between the regions of overlap. Highest importance was also used to reduce the mean dose to the Heart and the V20 of the lung. The remaining clinical goals of reducing low dose to the lungs, kidneys, and liver were prioritized from highest to lowest respectively. A RapidPlan model was also implemented to reduce the low dose to OARs and to help evaluate the clinical goal values by comparing them to the DVH prediction bands.

_{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.}