Kishi K, Shirai S, Sonomura T, Kawai N, Naya Y, Matsunaka M, Sato M, Yamada R
Department of Radiology, Wakayama Medical College, Japan.
Radiat Med. 1996 Mar-Apr;14(2):107-9.
In radiotherapy for eyelid tumors, a sufficient dose is required in the target tissue while preserving the crystalline lens. A I-mm thick, 20-mm diameter lead contact lens was prepared for crystalline lens protection. The lens was coated with an acrylic polymer and weighted 5.5 g. Six MeV electron therapy was scheduled using a 10 mm bolus on the eyelid. A simulation experiment proved that 0.78 +/- 0.04 percent of the maximal eyelid dose was given at the crystalline lens portion. A total of 14 eyelids in eight patients with cutaneous lymphoma, angiosarcoma, or basal cell carcinoma were treated with the contact lens. No cataract was found after irradiation over an average period of 24.3 months. The combination of the lead contact lens, bolus, and 6 MeV electron beam was a simple procedure and provided adequate dose distribution in the treatment of various eyelid tumors.
在眼睑肿瘤的放射治疗中，目标组织需要足够剂量的同时要保护晶状体。制备了一个1毫米厚、直径20毫米的铅质隐形眼镜用于保护晶状体。该隐形眼镜涂有丙烯酸聚合物，重5.5克。计划使用10毫米厚的组织等效物模体对眼睑进行6兆电子伏的电子治疗。模拟实验证明，晶状体部分接受的剂量为眼睑最大剂量的0.78±0.04%。8例皮肤淋巴瘤、血管肉瘤或基底细胞癌患者的14只眼睑使用该隐形眼镜进行了治疗。平均24.3个月的照射后未发现白内障。铅质隐形眼镜、组织等效物模体和6兆电子伏电子束的联合使用是一种简单的方法，在各种眼睑肿瘤的治疗中提供了足够的剂量分布。
