论文部分内容阅读
[目的]比较双手交叉和抱肘置顶对食管癌根治术后放疗患者侧野深度的影响。[方法]29例患者模拟机上真空袋固定,机架0°位设定统一的照射野边界、源皮距以确定中心点。将机架旋转至90°,分别测量双手交叉和抱肘置顶时的侧野深度。[结果]食管癌根治术后患者双手交叉和抱肘置顶的侧野深度分别为15.13±0.77cm(14.0～16.4cm)和15.33±0.74cm(14.0～16.9cm),两种置顶方式的平均差值为0.1928cm(95%CI:0.0385～0.3180),差异有统计学意义(t=2.827,P=0.011)。[结论]食管癌根治术后预防性放疗体位固定以双手交叉置顶为宜。
[Objective] To compare the effect of cross-arm fixation and elbow-elbow implantation on the depth of side field of radiotherapy patients undergoing radical resection of esophageal cancer. [Method] Twenty-nine patients were fixed on the vacuum bag on the simulator. The uniform radiation field boundary was set at 0 ° of the rack, and the distance between the source skin and the center was determined. Rotate the rack to 90 ° and measure the depth of the side field when both hands crossed and the elbow was raised. [Results] The lateral depths of both hands crossed and elbow-elbow patients were 15.13 ± 0.77cm (14.0 ~ 16.4cm) and 15.33 ± 0.74cm (14.0 ~ 16.9cm) after esophageal cancer radical mastectomy respectively. The average difference between the two methods Value of 0.1928cm (95% CI: 0.0385 ~ 0.3180), the difference was statistically significant (t = 2.827, P = 0.011). [Conclusion] Prophylactic radiotherapy for esophageal cancer after radical mastectomy is best with both hands crossed.