Delivered Dose Verification for Lung Cancer Stereotactic Body Radiotherapy Using Cone-Beam CT

Yechao Feng; Xi Liu; Xiang Pan; Chang Hu; Ning Zhan; Zongda Zhu; Zhenxiang Deng

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Delivered Dose Verification for Lung Cancer Stereotactic Body Radiotherapy Using Cone-Beam CT

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Purpose: Verified the delivered dose distribution of lung cancer Stereotactic Body Radiotherapy (SBRT) using the cone-beam CT images. Methods: Twenty lung cancer patients who underwent SBRT with 100 CBCT images were enrolled in this study. Delivered dose distributions were recalculated on CBCT images with the deformed and non-deformed methods, respectively. The planned and delivered dose distributions were compared using the dose-volume histograms. Results: The delivered target coverage (V100) per patient inside target volume deviated on average were 0.83% ± 0.86% and 1.38% ± 1.40% for Pct vs. Pcbct and Pct vs. Pdcbct, respectively. The Conformity Index (CI) and Gradient Index (GI) showed a good agreement among the plans. For the critical organs, only minor differences were observed between the planned dose and the delivered dose. Conclusions: CBCT images were a useful tool for setup and dose delivery verification for lung cancer patients who underwent SBRT.

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《癌症治疗（英文）》 |2021年第7期|P.453-459|共7页
作者
Yechao Feng; Xi Liu; Xiang Pan; Chang Hu; Ning Zhan; Zongda Zhu; Zhenxiang Deng;
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作者单位

Department of Radiation Oncology Hunan Academy of Traditional Chinese Medicine Affiliated Hospital Changsha China;

School of Medical Information and Engineering Guangdong Pharmaceutical University Guangzhou ChinaGuangdong Province Precise Medicine and Big Data Engineering Technology Research Center for Traditional Chinese Medicine Guangzhou China;

Department of Radiation Oncology Yunnan Tumor Hospital The Third Affiliated Hospital of Kunming Medical University Kunming China;

The Second Af?liated Hospital of Hainan Medical University Haikou China;

Department of Radiation Oncology School of Medicine Xiang’an Hospital of Xiamen University Xiamen University Xiamen China;

Department of Radiation Oncology School of Medicine Xiang’an Hospital of Xiamen University Xiamen University Xiamen China;

Department of Radiation Oncology School of Medicine Xiang’an Hospital of Xiamen University Xiamen University Xiamen China;

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原文格式 PDF
正文语种 chi
中图分类数学分析;
关键词
Lung Cancer; Stereotactic Body Radiotherapy; Cone Beam CT; Dose Verification;

Delivered Dose Verification for Lung Cancer Stereotactic Body Radiotherapy Using Cone-Beam CT

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