Sterckx Bo, Steinseifer Isabell, Wendling Markus
Department of Radiation Oncology, Radboud university medical center, Nijmegen, the Netherlands.
Phys Imaging Radiat Oncol. 2019 Nov 9;12:7-9. doi: 10.1016/j.phro.2019.10.002. eCollection 2019 Oct.
Electronic portal imaging device-based dosimetry with a commercial product was performed for 10 prostate cancer patients treated with an air-filled endorectal balloon. With the conventional method the verification results were outside of our clinical acceptance criteria for all patients. The method, originally developed for lung cancer treatments, proved to be a practical solution to this problem. On average the percentage of points within γ agreement of 3% and 3 mm significantly improved from 90.9% ± 2.5% (1SD) for the conventional method to 99.0% ± 1.0% (1SD) for the method.
对10例接受充气式直肠内气囊治疗的前列腺癌患者，使用一种商业产品进行基于电子射野影像装置的剂量测定。采用传统方法时，所有患者的验证结果均超出我们的临床接受标准。该方法最初是为肺癌治疗而开发的，事实证明是解决此问题的一个切实可行的办法。平均而言，在3%和3毫米的γ一致性范围内的点数百分比从传统方法的90.9%±2.5%（1标准差）显著提高到该方法的99.0%±1.0%（1标准差）。
