Real patient data based cross verification of kilovoltage and megavoltage CT calibration for proton therapy
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- 作者：Shie Nishioka1 ; Joo Han Park2 ; Wei Zou ; Miao Zhang ; Ning J. Yue ; Ting Chen ; chent4@cinj.rutgers.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：CT calibration ; Megavoltage CT ; Proton therapy ; Image registration
- 刊名：Physica Medica
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：32
- 期：2
- 页码：343-352
- 全文大小：1054 K
文摘
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We evaluate MVCT RSP-to-HU calibration against kVCT calibration for proton therapy.
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Use image registration to enable comparison between CT calibrations on patient data.
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MVCT and kVCT calibrations yield consistent RSP for soft tissue except adipose.
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MVCT and kVCT calibrations yield inconsistent RSP for boney structures and adipose.
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Uncertainty analysis and clinical study showed RSP difference may have clinical impact.