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胸部接受放射线治疗的患者,许多人出现心脏症状,尤其是心前区受照面积大的患者症状出现的早且比较严重。多数患者的心电图出现异常。但心肌细胞是否变性、坏死及血清酶值变化,未见文献报道。为此我们做了本实验,目的是了解照射心脏后,心肌细胞的组织学改变及血清酶值的变化,为临床提供参考。一、材料与方法:选用健康的的普通犬9只,按外科程序从第四、五肋间进入胸腔,充分暴露左心室。使用美国产的1800直线加速器产生的电子束,照射面积为4cm的限光筒.电子线能量为9MeV,照
Many people with chest radiotherapy receive cardiological symptoms, especially in those with large precordial areas. Most patients have abnormal ECG. However, whether myocardial cell degeneration, necrosis and serum enzyme changes, no reported in the literature. To this end, we have done this experiment, the purpose is to understand the irradiation of the heart, the histological changes of myocardial cells and serum enzyme changes for clinical reference. First, the material and methods: The selection of normal dogs 9, according to surgical procedures from the fourth, five intercostal space into the chest, fully exposed left ventricle. Electron beam produced by a U.S.-made 1800 linear accelerator was used to irradiate an area of 4 cm in diameter with an electron beam energy of 9 MeV,