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对T细胞淋巴瘤等广泛的皮肤病变患者采用仰卧和俯卧的电子线全身疗法。加速器光阑开到最大,不加限光筒。治疗时沿患者纵轴,3~4个野覆盖全长,机架对两种体位顺时针、逆时针45°各照1次。用胶片法检测相邻野间的剂量均匀性,未见明显的剂量热点和冷点。用热释光剂量计等间隔地分布在人体模型6个不同体层上,60个测试点结果表明全身剂量均匀性在±10%以内。
For T-cell lymphoma and other skin lesions in patients with supine and prone to the electronic body line therapy. Accelerator aperture open to the maximum, without limit light tube. Treatment along the longitudinal axis of the patient, 3 to 4 field cover the full length of the rack for both positions clockwise, counterclockwise 45 ° each 1 time. Using the film method to detect dose uniformity between adjacent fields, no obvious dose hot spots and cold spots were observed. The thermoluminescence dosimeters were equally spaced on 6 different body layers of the human model. The results of 60 test points showed that the systemic dose uniformity was within ± 10%.