Detection of middle cerebral emboli during coronary artery bypass surgery using transcranial Doppler sonography.
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چکیده
منابع مشابه
Detection of middle cerebral emboli during coronary artery bypass surgery using transcranial Doppler sonography.
Detection of Middle Cerebral Emboli During Coronary Artery Bypass Surgery Using Transcranial Doppler Sonography To the Editor: Spencer et al recently described the use of transcranial Doppler sonography to record the passage of emboli through the middle cerebral artery (MCA) during carotid endarterectomy. They recorded transient signals at the time of releasing common carotid cross clamps and i...
متن کاملDetection of Middle Cerebral Emboli During Coronary Artery Bypass Surgery Using Transcranial Doppler Sonography
Detection of Middle Cerebral Emboli During Coronary Artery Bypass Surgery Using Transcranial Doppler Sonography To the Editor: Spencer et al recently described the use of transcranial Doppler sonography to record the passage of emboli through the middle cerebral artery (MCA) during carotid endarterectomy. They recorded transient signals at the time of releasing common carotid cross clamps and i...
متن کاملDetection of middle cerebral artery emboli during carotid endarterectomy using transcranial Doppler ultrasonography.
The purpose of our study was to define the signal characteristics and clinical circumstances associated with emboli detected in the middle cerebral artery using 2-MHz pulsed transcranial Doppler ultrasound in patients undergoing carotid endarterectomy. Signals designating emboli were transients displaying harmonic qualities the signatures of which were clearly different from those of mechanical...
متن کاملDetection and volume estimation of embolic air in the middle cerebral artery using transcranial Doppler sonography.
BACKGROUND AND PURPOSE Cerebral embolism has been implicated in the development of cognitive and neurological deficits following bypass surgery. This study proposes methodology for estimating cerebral air embolus volume using transcranial Doppler sonography. METHODS Transcranial Doppler audio signals of air bubbles in the middle cerebral artery obtained from in vivo experiments were subjected...
متن کاملTranscranial Doppler Detection of Circulating Cerebral Emboli
Background: The identification of gaseous emboli using Doppler ultrasound was described as early as the 1960s. Recently it has been demonstrated that this method can also detect solid emboli such as thrombi and platelet aggregates. This may make this technology useful in a large number of patients with, or at risk of, embolic stroke. Summary of Review: Emboli appear as short-duration, high-inte...
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ژورنال
عنوان ژورنال: Stroke
سال: 1990
ISSN: 0039-2499,1524-4628
DOI: 10.1161/str.21.10.1512a