Journal «Angiology and Vascular Surgery» • 

2001 • VOLUME 7 • №1

MAGNETIC RESONANCE ANGIOGRAPHY IN THE DIAGNOSIS OF OOELUSIVE LEAIONA OF THE ARTERIES OF THE POPLITEOTIBIAL SEGMENT

Yu.N. Voskanyan, A.V. Vurvykhvoat, A.Z. Vafin, K.Yu. Kalugin, O.G. Kuznetsov, Yu.P. Tatsy, V.V. Mikhailov, A.A. Fomenko, V.N. Kolesnikov, F.A. Malysheva, R.A. Chemurziev
Chair of Surgical Biseaaes No1, State Medical Academy,
Department of Vaarcular Surgery, Department of Roentgenology and Magnetic Resonance Tomography, Regional Clinical Hospital,
Stavropol, Russia

he authors assess the potential of magnetic resonance angiography (pulse sequence "inflow") in the diagnosis of occlusive lesions of the arteries of the popliteotibial segment based on an examination of 49 patients suffering from obliterative diseases of lower limb arteries. Altogether 65 lower limbs were examined by magnetic resonance angiography (MRA). The sensitivity of MRA in the diagnosis of isolated occlusions of the popliteal artery and tibial arteries amounted to 83.93% (over 86.69% for 60% and greater stenoses and 100% for occlusions); the specificity constituted 6.43%. The sensitivity of MRA in identification of hemodynamically significant stenoses (greater than 60% of diameter) and leg artery occlusions associated with lesion of the femoropopliteal segment was qual to 96.3% and to 92.73% when the occlusions were coupled with lesion of the aortofemoral nd femoropopliteal segments. The specificity of MRA constituted 94.74 and 92.73% respectively, he time required for MRA of one limb was 34-42 minutes significantly less whereas the time equired for MRA of the aorta and both lower limb arteries was 41-49 minutes less as compared to hat needed for the same purpose at contrast angiography.

KEY WORDS: magnetic resonance angiography, occlusion of lower limb arteries, popliteotibial segment.

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