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激光多普勒血流仪是根据激光多普勒效应、光混频原理和随机信息处理技术研制而成，是一种较为可靠和精确的测量组织微循环血流的新技术手段，客观地提供即时性、连续性的血流测量，反映的是真正的血流状态，具有快速、简便、及时、非创伤性的特点。作者通过腰髓血流的测定，进一步评价了激光多普勒血流测定法在组织血流测定中的生物学意义、应用特点，并提出解决某些尚存问题的措施。
Laser Doppler flowmeter is based on the laser Doppler effect, light mixing principle and random information processing technology developed from, is a more reliable and accurate measurement of tissue microcirculation flow of new technical means to objectively provide Instantaneous, continuous measurement of blood flow, reflecting the true state of blood flow, with fast, simple, timely, non-invasive features. The authors further evaluated the biological significance and application characteristics of laser Doppler flowmetry in the measurement of blood flow through the measurement of lumbar cord blood flow and proposed some measures to solve some remaining problems.