Dose Distribution Three-Dimensional Conformal Radiation Therapy (3DCRT) With 2 And 4 Directions in Treatment Planning System for Cervical Cancer Cases

Armayta Krisnanjani, Wahyu Setia Budi, Evi Setiawati, Septi Purwaningsih, Irma Juwita, Fasicha Furaida
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Abstract

Cervical cancer which attacks the cervix is triggered by a virus called human papilloma virus (HPV). One effective treatment method for cervical cancer is external radiotherapy using a Linear Accelerator (Linac). This research aims to obtain radiation dose distribution by comparing the effectiveness of two treatment techniques cervical cancer, through Conformity Index (CI), Homogenity Index (HI), and radiation protection against Organ at Risk (OAR) in accordance with QUANTEC rules. The techniques used is Three Dimensional Conformal Radiation Therapy (3DCRT) with 2 directions of irradiation (anterior – posterior) and 4 directions of irradiation (box). Research data was obtained from 15 images of cervical cancer patients who have contoured by a Radiation Onkology Doctor at Indriati Hospital Solo Baru. From the result of the research, it can be said that the 3DCRT technique with 4 directions It can be seen from a higher Conformity Index (CI) value indicating a better level of conformity, and a lower Homogenity Index (HI) value indicating a higher level of homogenity. In addition, the 3DCRT technique with 4 directions of irradiation is also considered more effective in protecting OAR compared to 2 directions of irradiation.
三维适形放射治疗(3DCRT)剂量分布与宫颈癌病例治疗计划系统中的 2 个和 4 个方向
侵袭宫颈的宫颈癌是由一种名为人类乳头瘤病毒(HPV)的病毒引发的。宫颈癌的一种有效治疗方法是使用直线加速器(Linac)进行体外放射治疗。本研究旨在通过比较两种宫颈癌治疗技术的有效性,根据 QUANTEC 规则,通过一致性指数(CI)、均匀性指数(HI)和对危险器官(OAR)的辐射防护,获得辐射剂量分布情况。采用的技术是三维适形放射治疗(3DCRT),有 2 个照射方向(前-后)和 4 个照射方向(盒)。研究数据来自梭罗巴鲁 Indriati 医院放射肿瘤科医生为宫颈癌患者绘制的 15 幅图像。从研究结果来看,4 个照射方向的 3DCRT 技术符合性指数(CI)值越高,表示符合性越好,同质性指数(HI)值越低,表示同质性越高。此外,4 个照射方向的 3DCRT 技术也被认为比 2 个照射方向的 3DCRT 技术更能有效地保护 OAR。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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