[Measurement of blood flow of saphenous vein graft with Doppler catheter].

We investigated the measurement of blood flow of saphenous vein graft by Doppler Catheter. Under operation of femoro-popliteal bypass graftings (3 cases with 5 grafts of arteriosclerosis obliterans) with reversed saphenous vein grafts, blood flow of saphenous vein graft was measured. At the same time, blood flow of saphenous vein graft was measured by electromagnetic flowmeter. And the values obtained by Doppler Catheter (y) and those obtained by electromagnetic flowmeter (x) were compared. As a result, a good corelationship (y = 0.752 x -14.9, r = 0.836, p = 0, n = 20) was obtained. In conclusion, we suggest that the values of saphenous vein graft can be measured by Doppler Catheter. We actually measured the blood flow of saphenous vein graft with CABG. The measurement was thought to be possible.