Evaluation of deformable image registration (DIR) methods for dose accumulation in nasopharyngeal cancer patients during radiotherapy

Radiology and Oncology

Imjai Chitapanarux¹  Wannapha Nobnop²  Hudsaleark Neamin³  Somsak Wanwilairat⁴  Vicharn Lorvidhaya⁴  Taweap Sanghangthum⁵ 

[1] Corresponding authorDivision of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand;Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, ThailandDivision of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, ThailandOther articles by this author:;Department of Radiologic Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, ThailandOther articles by this author:;Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, ThailandOther articles by this author:;Division of Radiation Oncology, Department of Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, ThailandOther articles by this author:

关键词: deformable image registration;    dose accumulation;    nasopharyngeal cancer;    MVCT;    helical tomotherapy;   

DOI  :  10.1515/raon-2017-0033

学科分类：肿瘤学

来源: Onkoloski Institut Ljubljana / Institute of Oncology Ljubljana

【 摘 要 】

IntroductionDeformable image registration (DIR) is used to modify structures according to anatomical changes for observing the dosimetric effect. In this study, megavoltage computed tomography (MVCT) images were used to generate cumulative doses for nasopharyngeal cancer (NPC) patients by various DIR methods. The performance of the multiple DIR methods was analysed, and the impact of dose accumulation was assessed.

【 授权许可】

Unknown