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Delivered Dose Verification for Lung Cancer Stereotactic Body Radiotherapy Using Cone-Beam CT
Department of Radiation Oncology, Hunan Academy of Traditional Chinese Medicine Affiliated Hospital, Changsha, China
School of Medical Information and Engineering, Guangdong Pharmaceutical University, Guangzhou, China
Guangdong 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
- 1 Department of Radiation Oncology, Hunan Academy of Traditional Chinese Medicine Affiliated Hospital, Changsha, China
- 2 School of Medical Information and Engineering, Guangdong Pharmaceutical University, Guangzhou, China
- 3 Guangdong Province Precise Medicine and Big Data Engineering Technology Research Center for Traditional Chinese Medicine, Guangzhou, China
- 4 Department of Radiation Oncology, Yunnan Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China
- 5 The Second Af?liated Hospital of Hainan Medical University, Haikou, China
- 6 Department of Radiation Oncology, School of Medicine, Xiang’an Hospital of Xiamen University, Xiamen University, Xiamen, China
- 7 Department of Radiation Oncology, School of Medicine, Xiang’an Hospital of Xiamen University, Xiamen University, Xiamen, China
- 8 Department of Radiation Oncology, School of Medicine, Xiang’an Hospital of Xiamen University, Xiamen University, Xiamen, China
Journal of Cancer Therapy·Volume 12 (2021)·Pages 453–459·Published 7 July 2021·DOI10.4236/jct.2021.127039
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Abstract
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 metho d s , 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 deliver y verification for lung cancer patients who underwent SBRT.
KeywordsLung CancerStereotactic Body RadiotherapyCone Beam CTDose Verification
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