Early Detection of Vasospasm Using Transcranial Doppler Sonography and SPECT
نویسندگان
چکیده
منابع مشابه
Vasospasm Surveillance With Transcranial Doppler Sonography in Subarachnoid Hemorrhage.
The use of transcranial Doppler monitoring for the diagnosis of vasospasm in subarachnoid hemorrhage is backed by national guidelines. However, it remains poorly used across neurologic intensive care units in the United States. This current practice article uses 2 clinical vignettes to illustrate the simplicity and logic behind routine daily surveillance of vasospasm with transcranial Doppler s...
متن کاملEvaluation of cerebral vasoreactivity by SPECT and transcranial Doppler sonography using the acetazolamide test.
rCBF SPECT with 99mTc-HMPAO was performed prospectively in 29 patients (3 controls and 26 stroke patients) as well as TCD studies in 20 patients (3 controls and 17 stroke patients) before and after 1 g i.v. acetazolamide. The sensitivity of rCBF SPECT increased from 62% to 77% after acetazolamide provocation in stroke patients. In patients with a reversible neurological deficit, the sensitivity...
متن کاملTranscranial Doppler detection of anterior cerebral artery vasospasm.
The performance of transcranial Doppler in the detection of anterior cerebral artery vasospasm and vasospasm in patients after subarachnoid haemorrhage was analysed. Transcranial Doppler and cerebral angiography were performed within the same 24 hours on each of 41 patients with acute subarachnoid haemorrhage. Sensitivity and specificity of transcranial Doppler to classify middle cerebral arter...
متن کاملTranscranial Doppler detection of vertebrobasilar vasospasm following subarachnoid hemorrhage.
BACKGROUND AND PURPOSE Transcranial Doppler sonography is of established value in the detection and monitoring of middle cerebral artery vasospasm. Little information exists on the utility of transcranial Doppler for detection of posterior circulation vasospasm. METHODS Cerebral angiography and conventional hand-held transcranial Doppler sonography were compared to determine sensitivity and s...
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...
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ژورنال
عنوان ژورنال: Surgery for Cerebral Stroke
سال: 1991
ISSN: 0914-5508
DOI: 10.2335/scs1987.19.2_183