Pearcey R G, Griffiths S E
Br J Radiol. 1985 Oct;58(694):1003-5. doi: 10.1259/0007-1285-58-694-1003.
Twenty-four patients receiving post-operative radiotherapy for testicular tumours have been studied to assess the impact of treatment errors. Regular treatment verification radiographs were performed and compared with simulator planning radiographs. It was demonstrated that lymph nodes in the area most at risk, i.e., para-aortic nodes at L1 to L3 on the ipsilateral side, were inadequately irradiated on 10% of treatments, and that at least one lymph node miss was recorded in 12 of the 24 patients. These results are considered to be a minimum estimate. Mostly para-aortic fields 8.0 cm wide were used, but it was shown that the number of lymph-node misses could have been substantially reduced by using fields 9.0 cm wide, whilst the consequent increase in irradiated kidney volume was considered acceptable.
对24例接受睾丸肿瘤术后放疗的患者进行了研究，以评估治疗误差的影响。定期进行治疗验证X光片检查，并与模拟定位X光片进行比较。结果表明，在10%的治疗中，同侧L1至L3水平的腹主动脉旁淋巴结这一最危险区域的淋巴结照射不足，并且在24例患者中有12例记录到至少有一个淋巴结未被照射到。这些结果被认为是最低估计值。大多数使用的是8.0厘米宽的腹主动脉旁野，但研究表明，使用9.0厘米宽的野可大幅减少淋巴结未被照射到的数量，同时由此导致的肾脏受照体积增加被认为是可以接受的。
