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Accuracy of transcranial Doppler ultrasonography and single-photon emission computed tomography in the diagnosis of angiographically demonstrated cerebral vasospasm.

Abstract：

OBJECT:The goal of this study was to assess the accuracy of the routine clinical use of transcranial Doppler (TCD) ultrasonography and SPECT in predicting angiographically demonstrated vasospasm. METHODS:Following receipt of institutional review board approval, the authors reviewed the records of patients with subarachnoid hemorrhage who had been admitted between 2004 and 2005 and underwent TCD ultrasonography and SPECT evaluations within 24 hours of cerebral angiography. Patients were categorized based on the presence or absence of vasospasm and/or hypoperfusion in the anterior cerebral arteries (ACAs), middle cerebral arteries (MCAs), and basilar arteries (BAs) or posterior cerebral arteries (PCAs) according to each imaging modality. Logistic regression was used to estimate the odds ratio (OR) of an angiographically demonstrated vasospasm also detected on TCD ultrasonography and SPECT. RESULTS:One hundred fifty-two patients (101 women) with a mean age (+/- standard deviation) of 53 +/- 13 years were included in the study. In the ACA, the OR of a vasospasm on TCD ultrasonography was 27 (95% confidence interval [CI] 3-243) and on SPECT 0.97 (95% CI 0.36-2.6); in the MCA, 17 (95% CI 5.4-55) and 2.0 (95% CI 0.71-5.5), respectively; in the BA, 4.4 (95% CI 0.72-27) and 5.6 (95% CI 0.89-36), respectively. There was no substantial change in the relative odds of a vasospasm when the findings on TCD ultrasonography and SPECT were considered jointly. CONCLUSIONS:Transcranial Doppler ultrasonography appears to be highly predictive of an angiographically demonstrated vasospasm in the MCA and ACA; however, its diagnostic accuracy was lower with regard to vasospasm in the BA. Single-photon emission computed tomography was not predictive of a vasospasm in any of the vascular territories assessed.

journal_name

J Neurosurg

journal_title

Journal of neurosurgery

authors

Kincaid MS,Souter MJ,Treggiari MM,Yanez ND,Moore A,Lam AM

doi

10.3171/2008.4.17520

subject

Has Abstract

pub_date

2009-01-01 00:00:00

pages

67-72

issue

eissn

0022-3085

issn

1933-0693

journal_volume

110

pub_type

杂志文章

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Accuracy of transcranial Doppler ultrasonography and single-photon emission computed tomography in the diagnosis of angiographically demonstrated cerebral vasospasm.