Determination of the extent of lower-extremity peripheral arterial disease with color-assisted duplex sonography: comparison with angiography.

摘要: Color-assisted duplex sonography combines color Doppler flow imaging with to rapidly survey the vasculature. Color displays motion of flowing blood on a sonogram and is used visualize directly arterial lumen narrowing greater than 50%. Absence signals signifies occlusion. Preangiographic triage patients for surgical or interventional therapy requires that rapid accurate be performed extent disease. was applied prospectively in 17 consecutive clinical diagnosis peripheral disease who had not previously undergone angiography. Results angiography femoropopliteal arteries were graded localized one seven approximately equal segments. These compared similar segmental maps made sonography. For detection stenosis occlusion any 238 segments, sensitivity 0.88 (49/56), specificity 0....