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AWT IMAGE

AWT IMAGE

:: Volume 20, Issue 2 (4-2022) ::
Int J Radiat Res 2022, 20(2): 377-382 Back to browse issues page
The dosimetric and clinical comparison between helical tomotherapy and fixed-field intensity-modulated radiotherapy in radical irradiation for cervical cancer
M.F. Guo , X.J. Zhao , Y. Huang , D.K. Chen , N. Zhang
Department of Gynecologic Oncology, Chongqing University Cancer Hospital, Chongqing 400044, China , 18908370600@189.cn
Abstract:   (1027 Views)
Background: To compare the dosimetric parameters, clinical complications, and efficacy of helical tomotherapy (HT) and fixed-field intensity-modulated radiotherapy (f-IMRT) in radical radiotherapy for cervical cancer. Materials and Method: From November 2016 to December 2018, 77 cervical cancer patients in radical irradiation were selected, 38 patients undergoing treatment with HT and 39 with f-IMRT. The dosimetic parameters, clinical complications, and efficacy were compared. Results: The homogeneity index (HI) and conformity index (CI) of HT plans were both superior to those of f-IMRT plans(P=0.000). HT plans resulted in a reduction in the dosimetric parameters of organs at risk (OARs) (P<0.05) except the V10 of small intestine (P=0.682). The incidence of myelosuppression showed no significant differences (P=0.265).The patients with HT had no radiocystitis, grade 2 or above radiation proctitis. The complete remission (CR) rates, efficacy rates (CR+PR) and local control rates of two years were 81.58%,100% and 97.37%. Conclusion: HT showed advantages in dosimetry, and provided more superior clinical results. It has a good application prospect in radical irradiation for cervical cancer.
Keywords: Cervical cancer, dosimetry, helical tomotherapy, intensity-modulated radiotherapy.
Full-Text [PDF 1617 kb]   (403 Downloads)    
Type of Study: Original Research | Subject: Radiation Biology
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Guo M, Zhao X, Huang Y, Chen D, Zhang N. The dosimetric and clinical comparison between helical tomotherapy and fixed-field intensity-modulated radiotherapy in radical irradiation for cervical cancer. Int J Radiat Res 2022; 20 (2) :377-382
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Volume 20, Issue 2 (4-2022) Back to browse issues page
International Journal of Radiation Research
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