Kilovoltage intrafraction monitoring for real-time image guided adaptive radiotherapy reduces total dose for lung SABR

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• 作者：Prabhjot Juneja^a ; ^b ; Vincent Caillet^a ; ^b ; Tom Shaw^b ; Judith Martland^a ; Jeremy T. Booth^a ; ^b ; ^{Jeremy.Booth@health.nsw.gov.au" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Lung cancer ; Real time adaptive radiotherapy ; MLC tracking ; Imaging dose
• 刊名：Radiotherapy and Oncology
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：121
• 期：1
• 页码：15-18
• 全文大小：560 K

文摘

This study presents estimation of typical kV fluoroscopic imaging doses for image-guided real-time adaptive radiotherapy. For a cohort of 10 lung SABR patients the estimated imaging dose to ipsi-lateral lung with real-time adaptation is 9.9–15.1 cGy, which is less than the extra lung dose from treatment with potentially larger ITV-based PTV approach.