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Prevalence of Atherosclerotic Lesions at the Carotid Bifurcation in Patients with Asymptomatic Bruits: An Echo-Doppler (Duplex) StudyFrom the Clinica Medica I - Universita' di Padova, Padova, Italy
From the Clinica Medica I - Universita' di Padova, Padova, Italy
From the Clinica Medica I - Universita' di Padova, Padova, Italy
From the Clinica Medica I - Universita' di Padova, Padova, Italy
From the Clinica Medica I - Universita' di Padova, Padova, Italy
From the Clinica Medica I - Universita' di Padova, Padova, Italy
The prevalence of atherosclerotic lesions at the carotid bifurcation with asymptomatic Meck bruits has been evaluated in 71 patients, 42 males, ages ranging from 19 to 84 yrs, referred to our non-invasive vascular laboratory for an echo-doppler (duplex) scan, associated with spectral analysis (Mark V ATL with Flow analyzer 459). Fifty-nine patients had mid-neck or high-neck bruits (30 bilateral), 12 had low-neck bruits (4 bilateral). The internal carotid arteries were classified as normal, minimal stenosis (diameter reduction 20%), moder ate stenosis (20-49%), severe stenosis The echo-doppler (duplex) system, being capable of spanning the whole spectrum of the internal carotid occlusive disease, allows us to limit the number of the invasive diagnostic procedures in asymptomatic patients.
Angiology, Vol. 36, No. 4,
235-239 (1985) |
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50%), total occlusion. Twenty-four of the internal carotid arteries homolateral to a mid- or high-neck bruit were nor mal, 84% had stenosis of various degree (16% severe), 2% were occluded. Stenoses of various degree were also present on the contralateral side of the bruit. No lesions above a diameter reduction of 20% were present in the internal carotid arteries corresponding to a low-neck bruit.