Frontal Bone Windows for Transcranial Color-Coded Duplex Sonography
نویسندگان
چکیده
منابع مشابه
Frontal bone windows for transcranial color-coded duplex sonography.
BACKGROUND AND PURPOSE The use of the conventional temporal bone window for transcranial color-coded duplex sonography (TCCS) often results in difficulties in obtaining angle-corrected flow velocity measurements of the A2 segment of the anterior cerebral artery, the posterior communicating artery, and the midline venous vasculature because of the unfavorable insonation angle. The same applies t...
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BACKGROUND AND PURPOSE Diagnosis and successful therapy before rupture of cerebral aneurysms would be most desirable in view of the high mortality and morbidity rates of aneurysmal subarachnoid hemorrhage. Using transcranial color-coded duplex sonography, we studied radiologically proven cerebral aneurysms to define ultrasonographic criteria and sensitivity for their diagnosis and detection. ...
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BACKGROUND AND PURPOSE It is well established from pediatric experience and animal experiments that intracerebral blood can be demonstrated by B-mode real-time duplex scanning. This has recently become feasible in adults as well. The present study investigated the changes in the sonographic appearance of intracerebral hematomas over the course of time. METHODS Starting in May 1991, 23 consecu...
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Brain death is clinically diagnosed by verification of the absence of brain stem reflexes, motor responses, and the ventilatory drive.1 In some circumstances, ancillary tests are necessary to confirm the diagnosis of brain death, especially when there is uncertainty about the reliability of parts of the neurologic examination or when an apnea test cannot be performed. Ancillary tests are also u...
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BACKGROUND AND PURPOSE Gradation of high-grade intracranial internal carotid artery (ICA) stenosis poses a challenge to noninvasive neurovascular imaging, which seems critical for angioplasty in the ICA segments C1 and C5. We investigated cutoff values of intracranial ICA stenosis for transcranial color-coded sonography (TCCS) and compared this method with the "gold standard," digital subtracti...
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ژورنال
عنوان ژورنال: Stroke
سال: 1999
ISSN: 0039-2499,1524-4628
DOI: 10.1161/01.str.30.4.814