Kumar P P, Henschke U K, Nibhanupudy J R
J Natl Med Assoc. 1977 Sep;69(9):645-7.
In treating mycosis fungoides (MF) and Sezary syndrome patients with electron beam, the entire thickness and the area of the skin from crown to sole should be irradiated uniformly. To achieve irradiation of the entire thickness of the skin, electron beams of 3 - 4 MeV energy with 80 percent depth dose at 6 mm is sufficient. This unique property of limited penetration of electron beam does not cause any systemic toxicity during or after total body electron therapy. However, this property of limited penetration of electrons poses the problem of self-shielding in the curvaceous human body. The optic lens, which is within the range of penetrability of electron beam energy used for total body electron therapy, is to be shielded artificially.The purpose of this paper is to discuss the problems of self and artificial shielding in the superficial total body electron therapy for MF and Sezary syndrome.
在用电子束治疗蕈样肉芽肿（MF）和塞扎里综合征患者时，应均匀照射从头顶到脚底的整个皮肤厚度和面积。为实现对整个皮肤厚度的照射，能量为3 - 4 MeV、在6 mm处深度剂量为80%的电子束就足够了。电子束穿透有限的这一独特特性在全身电子治疗期间或之后不会引起任何全身毒性。然而，电子穿透有限的这一特性在人体曲线部位会造成自屏蔽问题。用于全身电子治疗的电子束能量可穿透范围内的晶状体需要进行人工屏蔽。本文旨在探讨MF和塞扎里综合征浅表全身电子治疗中的自屏蔽和人工屏蔽问题。
