恶性肿瘤患者一般存在高凝状态,约50%的恶性肿瘤患者和90%有转移的恶性肿瘤患者显示凝血指标异常[1],特别是血小板的异常,放疗尤其是三维适形放疗,作为恶性肿瘤的主要治疗手段之一,对血小板及其参数产生怎样的影响及其机制有待我们进一步研究,本实验以我科收住的实行三维适形放疗的恶性肿瘤患者为研究对象,检测其三维适形放疗过程中血小 Patients with malignant tumors generally have a hypercoagulable state, and about 50% of malignant tumors and 90% of patients with metastatic malignancies show abnormalities in coagulation index [1], especially platelet abnormalities, radiotherapy, especially three-dimensional conformal radiotherapy, as a malignant tumor The main treatment of platelet and its parameters how the impact and its mechanism needs further study, the experiment to our department to accept the implementation of three-dimensional conformal radiotherapy of malignant tumor patients as the object of study to detect its three-dimensional conformal Radiotherapy during the small blood