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

JCT > Vol.12 No.7, July 2021

Journal of Cancer Therapy

Volume 12, Issue 7 (July 2021)

ISSN Print: 2151-1934 ISSN Online: 2151-1942

Google-based Impact Factor: 0.35 Citations

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

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DOI: 10.4236/jct.2021.127039 254 Downloads 995 Views Citations

Author(s)

Yechao Feng^1*, Xi Liu^2,3*, Xiang Pan^4*, Chang Hu⁵, Ning Zhan⁶, Zongda Zhu⁶, Zhenxiang Deng^6#

Affiliation(s)

¹Department of Radiation Oncology, Hunan Academy of Traditional Chinese Medicine Affiliated Hospital, Changsha, China.
²School of Medical Information and Engineering, Guangdong Pharmaceutical University, Guangzhou, China.
³Guangdong Province Precise Medicine and Big Data Engineering Technology Research Center for Traditional Chinese Medicine, Guangzhou, China.
⁴Department of Radiation Oncology, Yunnan Tumor Hospital, The Third Affiliated Hospital of Kunming Medical University, Kunming, China.
⁵The Second Af?liated Hospital of Hainan Medical University, Haikou, China.
⁶Department of Radiation Oncology, School of Medicine, Xiang’an Hospital of Xiamen University, Xiamen University, Xiamen, China.

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 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.

KEYWORDS

Lung Cancer, Stereotactic Body Radiotherapy, Cone Beam CT, Dose Verification

Share and Cite:

Feng, Y. , Liu, X. , Pan, X. , Hu, C. , Zhan, N. , Zhu, Z. and Deng, Z. (2021) Delivered Dose Verification for Lung Cancer Stereotactic Body Radiotherapy Using Cone-Beam CT. Journal of Cancer Therapy, 12, 453-459. doi: 10.4236/jct.2021.127039.

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