Evaluation of carotid artery stenosis: Is duplex ultrasonography sufficient?
نویسندگان
چکیده
منابع مشابه
Renal artery stenosis: evaluation with colour duplex ultrasonography.
BACKGROUND Detection of renal artery stenoses (RAS) by means of duplex Doppler ultrasound with direct scanning of the main renal arteries is subject to numerous limitations. Using semiquantitative analysis of the Doppler curve, which can be recorded from intrarenal arteries, it is possible to detect RAS unaffected by the problems of direct Doppler scanning of the renal arteries. METHODS Both ...
متن کاملDiagnostic performance of duplex ultrasonography in the detection of high grade internal carotid artery stenosis.
OBJECTIVES to establish on a national basis whether the diagnostic accuracy of carotid duplex justifies carotid surgery without preoperative angiography. DESIGN prospective national multicentre study with 10 participating university and county hospitals. MATERIAL AND METHODS one hundred and thirty-four patients, aged 69+/-9 years, were subjected to routine carotid duplex ultrasonography and...
متن کاملThe combined use of duplex ultrasonography and magnetic resonance angiography most accurately diagnosed carotid artery stenosis.
D e s c r i p t i o n o f t e s t s a n d d i a g n o s t i c s t a n d a r d DUS, MRA, and DSA were done within 4 weeks. The degree of stenosis on DUS was based on the peak systolic velocity (PSV) in the proximal internal carotid artery; analysis of DUS was based on a threshold of 70% stenosis, represented by a PSV of 270 cm/s. DSA was the diagnostic standard: A positive test result was define...
متن کاملBlinded-reader comparison of magnetic resonance angiography and duplex ultrasonography for carotid artery bifurcation stenosis.
BACKGROUND AND PURPOSE We compared two-dimensional time-of-flight magnetic resonance angiography (MRA) and duplex ultrasonography with arteriography for the detection of 70% to 99% stenoses at the carotid artery bifurcation (ie, surgical disease according to findings of the North American Carotid Endarterectomy Trial). METHODS Three blinded readers independently measured stenoses on MRA in 73...
متن کاملDuplex ultrasonography for the detection of vertebral artery stenosis
OBJECTIVES Vertebrobasilar stenosis is frequent in patients with posterior circulation stroke and it increases risk of recurrence. We investigated feasibility of duplex ultrasonography (DUS) for screening for extracranial vertebral artery stenosis and compared it with CT angiography (CTA). MATERIALS AND METHODS We gathered data on 337 consecutive patients who had DUS because of posterior circ...
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ژورنال
عنوان ژورنال: Journal of Vascular Surgery
سال: 1996
ISSN: 0741-5214
DOI: 10.1016/s0741-5214(96)70140-4