Since 1876, when Francois-Frank described on the noninvasive method of estimation of peripheral blood flow volume for the first time, many different and advanced noninvasive diagnostic tools for peripheral vascular disease have been developed.
From 1986, we have used photoplethysmograph(PPG), strain-gauge plethysmograph (SPG) and Doppler ultrasound as noninvasive diagnostic tools for peripheral vascular disease. So we collected 537 cases from jan. 1987 to Mar. 1991, in that these
diagnostic
techniques were used. From the results we could gain not only the normal values of different forms of the techniques, but also the significant difference between various disease groups.
Among these cases, angiography was done in 228 cases. A hundred and 78 cases were confirmed as obstructed arterial disease and 36 cases as deep venous disorder such as deep vein thrombosis. Only angiography-confirmed cases were analyzed. We
referred to
the results of previous case control study for the normal values.
In PPG, the normal value at 2nd toe was 4.3 (SD 2.1), 1.3(SD 1.4) in occlusive arterial disease and 3.8 (SD 1.3) in venous disorder. There was significant deviation only in occlusive arterial disease. The normal value of peripheral blood flow
volume at
calf by SPG was 3.7ml/min/100cc(SD 1.4), 4.1ml/min/100cc(SD 2.1) in occlusive arterial disease and 4.0ml/min/100cc(SD 1.2) in venous disorder. There was no significant difference between each group. The maximum venous outflow was
18.0ml/min/100cc(SD
7.0) in normal, and this was different significantly from that of venous disorder (6.8ml/min/100cc, SD 2.5). Doppler ultrasound was valuable tools for the determination of the site and severity of stenosis or obstruction of artery in occlusive
arterial
disease.
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