منابع مشابه
Consensus on Microembolus Detection by TCD
Transcranial Doppler ultrasound is capable of detecting microembolic material, both gaseous and solid, within the intracranial cerebral arteries. To avoid discrediting this promising and exciting new technique, experts in this field met in January 1997 in Frankfurt, Germany, to discuss the limitations and problems of embolus detection and to determine guidelines for its proper use in clinical p...
متن کاملMicroembolus Detection by Transcranial Doppler Sonography: Review of the Literature
Transcranial Doppler can detect microembolic signals which are characterized by unidirectional high intensity increase, short duration, random occurrence, and a "whistling" sound. Microembolic signals have been detected in a number of clinical settings: carotid artery stenosis, aortic arch plaques, atrial fibrillation, myocardial infarction, prosthetic heart valves, patent foramen ovale, valvul...
متن کاملMicroembolus detection in patients with Takayasu's arteritis.
BACKGROUND AND PURPOSE Takayasu's arteritis (TA) is a chronic inflammatory disease of unknown etiology that can affect the aorta and its branches. The cerebral ischemia in TA can be caused by a variety of mechanisms, and the focus of this study is to detect the possible contribution of microembolus in the pathogenesis of stroke. METHODS Eighteen patients with TA according to the criteria for ...
متن کاملSynchronous detector as a new paradigm for automatic microembolus detection
We propose here a new detector paradigm based on synchronous detection. Unlike standard energy detectors, this kind of detector uses the pseudo-cyclostationarity properties of blood Doppler signals. The new detector, that is synchronized with cardiac rhythm, was compared to a gold standard and a standard energy detector. Detectors were evaluated according to clinical recordings from patients wi...
متن کاملClinical significance of microembolus detection by transcranial Doppler sonography in cardiovascular clinical conditions.
Transcranial Doppler can detect microembolic signals, which are characterized by unidirectional high intensity increase, short duration, and random occurrence, producing a "whistling" sound. Microembolic signals have been proven to represent solid or gaseous particles within the blood flow. Microemboli have been detected in a number of clinical cardiovascular settings: carotid artery stenosis, ...
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ژورنال
عنوان ژورنال: Stroke
سال: 1998
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.29.3.725