2018 AANS Annual Scientific Meeting-559. How to improve obliteration rates during volume staged stereotactic radiosurgery for large arteriovenous malformations

559. How to improve obliteration rates during volume staged stereotactic radiosurgery for large arteriovenous malformations

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Video Summary

Dr. Kano discusses improving obliteration rates during volume stage stereotactic radiosurgery for large arteriovenous malformations (AVMs). The study evaluates the use of volume stage gamma knife planning for AVMs larger than 10 cc in volume. The study includes 60 patients with AVMs located in different brain regions. The median nidus volume and margin dose were 10.6 cc and 16 gray, respectively. The study finds that a 20 gray volume coverage rate of more than 63% is a significant predictor for total obliteration. Increasing the number of smaller isocenters can help increase the 20 gray volume coverage rate without increasing the risk of complications.

Asset Caption

Hideyuki Kano, MD, PhD

Keywords

obliteration rates

AVMs

gamma knife planning

volume coverage rate

isocenters