Clinical experiences with onboard imager KV images for linear accelerator-based stereotactic radiosurgery and radiotherapy setup

International Journal of Radiation Oncology, Biology, Physics
Linda X HongDennis Mah

Abstract

To report our clinical experiences with on-board imager (OBI) kV image verification for cranial stereotactic radiosurgery (SRS) and radiotherapy (SRT) treatments. Between January 2007 and May 2008, 42 patients (57 lesions) were treated with SRS with head frame immobilization and 13 patients (14 lesions) were treated with SRT with face mask immobilization at our institution. No margin was added to the gross tumor for SRS patients, and a 3-mm three-dimensional margin was added to the gross tumor to create the planning target volume for SRT patients. After localizing the patient with stereotactic target positioner (TaPo), orthogonal kV images using OBI were taken and fused to planning digital reconstructed radiographs. Suggested couch shifts in vertical, longitudinal, and lateral directions were recorded. kV images were also taken immediately after treatment for 21 SRS patients and on a weekly basis for 6 SRT patients to assess any intrafraction changes. For SRS patients, 57 pretreatment kV images were evaluated and the suggested shifts were all within 1 mm in any direction (i.e., within the accuracy of image fusion). For SRT patients, the suggested shifts were out of the 3-mm tolerance for 31 of 309 setups. Intrafraction motions ...Continue Reading

References

Dec 1, 1995·International Journal of Radiation Oncology, Biology, Physics·S J RosenthalA F Thornton
Jul 7, 1999·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·V P CosgroveR E Wurm
Aug 27, 2005·Medical Physics·A W LightstoneUNKNOWN American Association of Physicists in Medicine Radiation Therapy Committee
Nov 28, 2006·International Journal of Radiation Oncology, Biology, Physics·Judit Boda-HeggemannFrederik Wenz
Aug 21, 2007·International Journal of Radiation Oncology, Biology, Physics·Matthias GuckenbergerMichael Flentje
Jun 3, 2008·International Journal of Radiation Oncology, Biology, Physics·Laura MasiCarlo Cavedon

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Citations

Oct 23, 2009·Radiotherapy and Oncology : Journal of the European Society for Therapeutic Radiology and Oncology·Jinli MaFang-Fang Yin
Aug 12, 2016·International Journal of Radiation Oncology, Biology, Physics·Winnie LiCaroline Chung
Sep 3, 2016·Medical Physics·Molly C CookEduard Schreibmann
Oct 3, 2018·Journal of Applied Clinical Medical Physics·Satoshi TanabeHidefumi Aoyama
Oct 14, 2020·Strahlentherapie und Onkologie : Organ der Deutschen Röntgengesellschaft ... [et al]·Hao WangKe Nie
Jan 14, 2021·Biomedical Physics & Engineering Express·Jiayuan PengBin Cai

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