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KMID : 0614720040470070620
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Journal of Korean Medical Association
2004 Volume.47 No. 7 p.620 ~ p.630
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Cerebrovascular Ultrasound in Stroke Diagnosis and Its Applications
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이준홍/Lee JH
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Abstract
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The greatest advances in understanding and treating stroke have occurred during the past 30 years. The advantages of ultrasound for vascular diagnosis are well known : it is a fast, portable, non－invasive, repeatable and inexpensive technique. Among various clinical situations for the application of ultrasound to stroke care, the best established ones include : ① early detection and characterization of extracranial atherosclerosis and occlusive diseases especially at the carotid bifurcation ; ② evaluation of consequences of proximal arterial occlusive disease on the distal cerebral vasculature ; ③ follow－up of the natural history and response to treatment of acute arterial occlusion that causes hyperacute stroke ; ④ detection of microemboli associated with cardiac and aortic
pathology and carotid artery surgical manipulation ; and ⑤ follow－ up of the time course and reversibility of cerebral vasospasm after subarachnoid hemorrhage. The field of ultrasonic diagnosis also has detractors and limitations. Even now, the technique is ‘operator－dependent’in terms of the accuracy and validity of its results. Newer technology has provided significant advances in this regard ; however, it is necessary for each laboratory to maintain a strict quality control in order to maximize the benefits that this powerful technology can provide.
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KEYWORD
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