我院开展血流图仪已有二十几年历史，曾使用过几个型号国产与进口血流图机，每台机器根据性能的不同，各有优缺点，但仪器的使用操作方法有时却直接影响诊断结果。我们曾购进一台ＲＧ—２Ｂ型血流图仪，经过一段时间的使用，感觉仪器的性能在国内同类产品中还比较好，但就仪器 Our institute has been developing blood flow graphs for more than 20 years. We have used several models of domestic and imported blood flow mapping machines. Each machine has its own advantages and disadvantages depending on the performance. However, the instrument’s operation methods are sometimes used. Directly affect the diagnosis. We have purchased an RG-2B blood flow meter. After a period of use, it feels that the performance of the instrument is still relatively good in the same domestic products, but the instrument