Lucarotti M E, Lancaster J F, Jenkins A J, Leaper D J
University Department of Surgery, Southmead Hospital, Bristol, UK.
Phlebologie. 1988 Nov-Dec;41(4):735-9.
Laser-Doppler Velocimetry (LDV) is useful in measurement of relative tissue blood flow. We have found a change in both the variability of the LDV waveform and its absolute level when measured in the supine and dependent limb, in patients with venous reflux. These changes correlated with simultaneous photo-plethysmographic (PPG) assessment of venous reflux and were more pronounced in patients with leg ulcers. These changes were also reduced by compression bandaging.
激光多普勒测速仪（LDV）在测量相对组织血流方面很有用。我们发现，在患有静脉反流的患者中，当在仰卧位和下肢下垂位测量时，LDV波形的变异性及其绝对水平都会发生变化。这些变化与同时进行的静脉反流光电容积描记法（PPG）评估相关，并且在患有腿部溃疡的患者中更为明显。通过加压包扎也可减少这些变化。
