Dynamic transcranial Doppler assessment of positional vertebrobasilar ischemia.
نویسندگان
چکیده
منابع مشابه
Dynamic transcranial Doppler assessment of positional vertebrobasilar ischemia.
BACKGROUND AND PURPOSE A hemodynamic as opposed to an embolic origin of vertebrobasilar ischemia may be suspected when symptoms are brief and triggered by changes in the position of the head or neck. It may be difficult, and not without risk, to reproduce the symptoms and to prove the short-lived hemodynamic changes during angiography. If transcranial Doppler sonography (TCD) could detect these...
متن کاملthe assessment value of transcranial doppler sonography versus magnetic resonance angiography in vertebrobasilar stroke
background: the goal of this study was to determine the reliability of tcd in evaluation of vertebrobasilar arteries in comparison with brain mra in patients suffering from acute vertebrobasilar stroke. methods: samples were patients with definite clinical diagnosis of vertebrobasilar stroke. for all patients brain mri, mra and tcd were performed during the first 48 hours of admission. basilar ...
متن کاملThe Diagnosis of Vertebrobasilar Insufficiency Using Transcranial Doppler Ultrasound
Background. Vertebrobasilar insufficiency (VBI) is a hemodynamic posterior circulation transient ischemic attack (TIA) caused by intermittent vertebral artery occlusion that is induced by a head rotation or extension. VBI may result from large vessel atherosclerotic disease, dissection, cervical compressive lesions, and subclavian steal phenomenon. Diagnostic transcranial Doppler (TCD) of VBI d...
متن کاملTranscranial Doppler detection of vertebrobasilar vasospasm following subarachnoid hemorrhage.
BACKGROUND AND PURPOSE Transcranial Doppler sonography is of established value in the detection and monitoring of middle cerebral artery vasospasm. Little information exists on the utility of transcranial Doppler for detection of posterior circulation vasospasm. METHODS Cerebral angiography and conventional hand-held transcranial Doppler sonography were compared to determine sensitivity and s...
متن کاملThe assessment value of transcranial Doppler sonography versus magnetic resonance angiography in vertebrobasilar stroke
BACKGROUND The goal of this study was to determine the reliability of TCD in evaluation of vertebrobasilar arteries in comparison with brain MRA in patients suffering from acute vertebrobasilar stroke. METHODS Samples were patients with definite clinical diagnosis of vertebrobasilar stroke. For all patients brain MRI, MRA and TCD were performed during the first 48 hours of admission. Basilar ...
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ژورنال
عنوان ژورنال: Stroke
سال: 1994
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.25.9.1776