Patient specific contouring region of interest for abdominal stereotactic adaptive radiotherapy

Alex T. Price, Christopher J. Zachary, Eric Laugeman, Borna Maraghechi, Tong Zhu, Lauren E. Henke

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Contouring during adaptive radiotherapy (ART) can be a time-consuming process. This study describes the generation of patient specific contouring regions of interest (CRoI) for evaluating the high dose fall-off in stereotactic abdominal ART. An empirical equation was derived to determine the radius of a cylindrical patient specific CRoIs. These CRoIs were applied to 60 patients and their adaptive fractions (301 unique treatment plans). Out of the 301 unique treatment plans, 284 (94%) treatment plans contained the high dose fall-off within the CRoI. There was an expected predicted average timesaving of 2.9-min-per case. Patient specific CRoIs improves the efficiency of ART.

Original languageEnglish
Article number100423
JournalPhysics and Imaging in Radiation Oncology
Volume25
DOIs
StatePublished - Jan 2023

Keywords

  • Adaptive radiotherapy
  • CBCTgRT
  • Gastrointestinal SBRT
  • MRgRT
  • SBRT

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