Blood flow velocity and vasomotor reactivity in patients with arteriovenous malformations. A transcranial Doppler study.
نویسندگان
چکیده
منابع مشابه
Blood flow velocity and vasomotor reactivity in patients with arteriovenous malformations. A transcranial Doppler study.
BACKGROUND AND PURPOSE A large percentage of patients with a cerebral arteriovenous malformation (AVM) show focal neurological signs or have a history of intracranial hemorrhage. The present study used transcranial Doppler sonography to assess the clinical significance of hemodynamic disturbances in the intracranial arteries of patients with an AVM. METHODS Eighteen patients with untreated AV...
متن کاملcomparison of blood flow velocity changes in posterior cerebral artery measured with transcranial doppler sonography in migraineurs with visual aura and normal persons after photostimulation
چکیده ندارد.
15 صفحه اولCerebral blood flow velocity in acute schizophrenic patients. A transcranial Doppler ultrasonography study.
BACKGROUND AND PURPOSE The aim of this study was to determine whether acutely psychotic first-episode schizophrenics show an increased cerebral blood flow velocity and whether this condition is reversible on psychopathological improvement. METHODS In the first of two examinations, transcranial Doppler ultrasonography and assessment with the Positive and Negative Syndrome Scale (PANSS) were pe...
متن کاملReduced vasomotor reactivity in cerebral microangiopathy : a study with near-infrared spectroscopy and transcranial Doppler sonography.
BACKGROUND AND PURPOSE Reduction of cerebral blood flow and vasomotor reactivity (VMR) are thought to play an important role in the pathogenesis of cerebral microangiopathy. The aim of our study was to determine whether near-infrared spectroscopy (NIRS) can detect a reduced VMR in patients with microangiopathy, whether NIRS reactivities correlate with VMR assessed by transcranial Doppler sonogr...
متن کاملGrading and hemodynamic follow-up study of arteriovenous malformations with transcranial Doppler ultrasonography.
This study presents and tests the clinical validity of a hemodynamic grading system that depends on noninvasive transcranial Doppler ultrasonographic parameters. The suggested transcranial Doppler-based grading system was compared with the Spetzler-Martin anatomic grading for prognosticative validity and clinical dependability. We concluded the following: (1) The pulsatility index was shown to ...
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ژورنال
عنوان ژورنال: Stroke
سال: 1994
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.25.8.1574