阻抗血流图是一项探测有关组织器官的血液循环机能状态的、无创伤的生物物理技术。脑血流图(又称脑电阻图 Rhe-oencephalography,REG)是其中的一种,是检查脑血管机能状态的方法之一,用来反映被检部位搏动性供血情况,检查脑血管和神经系统疾病,还应用于对职业病的观察。近年来逐渐为临床医学所重视。 Impedance flowgraph is a noninvasive biophysical technique that detects the state of blood circulation in a tissue or organ. Cerebral blood flow map (also known as the brain electrical resistance map Rhe-oencephalography, REG) is one of them, is one of the methods to check the status of cerebrovascular function, used to reflect the pulsatile blood supply of the seized site, check the cerebrovascular and nervous system Disease, also used in the observation of occupational diseases. In recent years, gradually pay attention to clinical medicine.