ASMR 2017

What Has Changed in the World of Planning?

• “ Isotoxic ” Treatment Planning

• Pioneered by MAASTRO

• Most data for this approach comes from lung cancer with Spinal Cord and MLD as the toxic endpoints

• Moves away from the “one size fits all” approach for dose prescription  Dose escalation is based on patient specific OAR DVH results

• Dose escalate the PTV until the OARs reach their tolerance