Assessment of intra-fraction motion during frameless image guided Gamma Knife stereotactic radiosurgery

Winnie Li; Gregory Bootsma; David Shultz; Normand Laperriere; Barbara-Ann Millar; Young Bin Cho; David A. Jaffray; Caroline Chung; Catherine Coolens

Physics and Imaging in Radiation Oncology (Jan 2023)

Assessment of intra-fraction motion during frameless image guided Gamma Knife stereotactic radiosurgery

Winnie Li,
Gregory Bootsma,
David Shultz,
Normand Laperriere,
Barbara-Ann Millar,
Young Bin Cho,
David A. Jaffray,
Caroline Chung,
Catherine Coolens

Affiliations

Winnie Li: Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada; Corresponding author at: Radiation Medicine Program, Princess Margaret Cancer Centre, 610 University Avenue, Level 2B, Cobalt Lounge, Toronto, ON, Canada.
Gregory Bootsma: Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, ON, Canada
David Shultz: Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
Normand Laperriere: Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
Barbara-Ann Millar: Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
Young Bin Cho: Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
David A. Jaffray: Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
Caroline Chung: Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada
Catherine Coolens: Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, ON, Canada; Department of Radiation Oncology, University of Toronto, Toronto, ON, Canada

Journal volume & issue: Vol. 25
p. 100415

Abstract

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As frameless stereotactic radiosurgery increase in use, the aim of this study was to evaluate intra-fraction motion through cone-beam CT (CBCT) and high-definition motion management (HDMM) systems. Intra-fraction motion measured between localization, repeat localization and post-treatment CBCTs were correlated to intra-faction motion indicated by the HDMM files using the Pearson coefficient (r). A total of 302 plans were reviewed from 263 patients (114 male, 149 female); 216 pairs of localization-repeat localization, and 260 localization–post-treatment CBCTs were analyzed against HDMM logs. We found the magnitude of intra-fraction motion detected by the HDMM system were larger than the corresponding CBCT results.

Published in Physics and Imaging in Radiation Oncology

ISSN: 2405-6316 (Online)
Publisher: Elsevier
Country of publisher: Ireland
LCC subjects: Medicine: Medicine (General): Medical physics. Medical radiology. Nuclear medicine; Medicine: Internal medicine: Neoplasms. Tumors. Oncology. Including cancer and carcinogens
Website: https://www.journals.elsevier.com/physics-and-imaging-in-radiation-oncology/

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