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

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...

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Detalles Bibliográficos
Autores principales: Li, Winnie, Bootsma, Gregory, Shultz, David, Laperriere, Normand, Millar, Barbara-Ann, Cho, Young Bin, Jaffray, David A., Chung, Caroline, Coolens, Catherine
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Technical Note
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9883231/
https://www.ncbi.nlm.nih.gov/pubmed/36718356
http://dx.doi.org/10.1016/j.phro.2023.100415
Descripción
Sumario: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.

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