Embolus Differentiation Using Multifrequency Transcranial Doppler
نویسندگان
چکیده
منابع مشابه
Embolus differentiation using multifrequency transcranial Doppler.
Embolus Differentiation Using Multifrequency Transcranial Doppler To the Editor: Markus and Punter report disappointing results for differentiation between solid and gaseous emboli using both the default settings of the Embo-Dop multifrequency transcranial Doppler system,1 and the modified criteria recommended by Russell and Brucher.2,3 One reason for this poor performance is a fundamental limi...
متن کاملAutomatic online embolus detection and artifact rejection with the first multifrequency transcranial Doppler.
BACKGROUND AND PURPOSE The goal of this study was to assess the first multifrequency transcranial Doppler system specially developed for online automatic detection of cerebral microemboli. METHODS The multifrequency Doppler instrumentation insonates simultaneously with 2.0- and 2.5-MHz frequencies. The detection threshold for embolus detection used in this study was a relative Doppler energy ...
متن کاملOnline automatic discrimination between solid and gaseous cerebral microemboli with the first multifrequency transcranial Doppler.
BACKGROUND AND PURPOSE The aim of this study was to assess the first multifrequency transcranial Doppler system that was specially developed to automatically detect and discriminate between solid and gaseous cerebral microemboli. METHODS The multifrequency transcranial Doppler instrumentation insonates simultaneously with 2.5 and 2.0 MHz. Differentiation between solid and gaseous microemboli ...
متن کاملDifferentiation between different pathological cerebral embolic materials using transcranial Doppler in an in vitro model.
BACKGROUND AND PURPOSE The detection of circulating particulate cerebral emboli using transcranial Doppler ultrasonography has been recently reported. It has been suggested that this method might allow discrimination between different embolic materials; this would be very useful for selecting specific pharmacological treatment in individual patients. This study was designed to identify those pa...
متن کاملTranscranial Doppler and anesthetics.
Transcranial Doppler (TCD) is widely used to investigate the effects of anesthetic drugs on cerebral blood flow. Its repeatability and non-invasivity makes it an ideal, first choice method. Anesthesia providers are required to be conscious of the cerebral hemodynamic effects of drugs given in their practice, especially in neurosurgery and in subjects with impaired brain functions. The purpose o...
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ژورنال
عنوان ژورنال: Stroke
سال: 2006
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.0000227261.69485.b1