Product Manual

Page 13 of 21
Draft 1.1
Abnormal: Slow rise, little reflected wave – quite a bit of tremor “noise”
Determining site of occlusion with PVR waveforms:
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A normal waveform at a site indicates
that there is not likely any occlusive disease above that cuff.
Abnormal at thigh: Probably aorto-iliac disease
Normal thigh but abnormal calf (below knee): occlusive disease in superficial femoral and/or
popliteal segments.
Normal thigh and calf with abnormal ankle: suggests tibial disease
Don’t be discouraged if measuring the ABI seems slow or clumsy at first. Like any
procedure, the ABI becomes easier to do with practice.
3
Daigle, Robert J., Techniques in Noninvasive Vascular Diagnosis, Summer Publishing,
www.summerpublishing.com