Ruth B
GSF-Research Centre for Environment and Health, Oberschleissheim, Germany.
Med Eng Phys. 1994 Mar;16(2):105-11. doi: 10.1016/1350-4533(94)90023-x.
The non-contact laser speckle method provides a measure of skin blood flow with a time resolution of 1 s. Information about different characteristics of the blood flow can be obtained from measurements of the steady state and from the time course during ischaemia and reactive hyperaemia. Special signal processing, a microprocessor and a computer program facilitate the analysis of the data. They consider disturbances which come from a common tissue movement and from convulsions of the limbs. Measurements prove a decreased steady-state value and prolonged half-times during ischaemia and reactive hyperaemia when patients with peripheral arterial occlusive disease are compared with healthy subjects.
非接触式激光散斑法可测量皮肤血流，时间分辨率为1秒。通过对稳态以及缺血和反应性充血期间的时间过程进行测量，可获取有关血流不同特征的信息。特殊的信号处理、微处理器和计算机程序有助于数据的分析。它们会考虑来自常见组织运动和肢体抽搐的干扰因素。测量结果表明，与健康受试者相比，外周动脉闭塞性疾病患者在缺血和反应性充血期间的稳态值降低，半衰期延长。
