Impedance plethysmography using the occlusive cuff technique in the diagnosis of venous thrombosis.
作者： R Hull , W G van Aken , J Hirsh , A S Gallus , G Hoicka
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摘要: Impedance plethysmography using the cuff technique has been compared with venography in 346 consecutive patients suspected venous thromboembolism. The limbs were classified according to venographic results as no thrombosis, proximal (popliteal, femoral, or iliac) vein and calf thrombosis. A discriminant analysis was performed. impedance plethysmographic result normal 386 of 397 which on venography, a specificity 97%, abnormal 124 133 showed sensitivity 93%. Seventy-three 88 thrombi result. 29 asymptomatic thrombosis 83%. is an accurate method for detecting but limitations include possibility false positive due arterial insufficiency muscle tension.
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