Impact of Margins for Single Isocenter Multiple Target Treatments

Event: AAPM 2019: Novalis Circle Symposium
Topic: Intracranial metastasis
Year: 2019

Nzhde Agazaryan, PhD, Professor of Radiation Oncology at the University of California Los Angeles discusses the impact of margins for single isocenter multiple brain metastases radiosurgery treatments. He begins by outlining their commissioning and validation of this methodology as well as patient-specific quality assurance methods. He first outlines the time saved with the software as tracked by his team versus previous planning software, before delving into how margins impact total target volumes and why his institution is now striving to reduce margins.

Video Transcript

Dr. Nzhde: Okay. So my presentation will be mainly focused on margin assignments for treating multiple metastases with single isocenter. More specifically focusing on our recent decision in our institution to reduce margins used for these patients. These are my disclosures, and credits to my colleagues who have helped me with this presentation. So we have done a lot of work in commissioning and validation of this methodology. And if you're interested to learn more about the commissioning and validation methods, there is a SAM [SP] session right after this symposium at 1:45 where I will present more about commissioning...

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