Intravenous Flat-Detector Computed Tomography Angiography for Symptomatic Cerebral Vasospasm following Aneurysmal Subarachnoid Hemorrhage
Joint Authors
Jeon, Jin Pyeong
Sheen, Seung Hun
Cho, Yong-Jun
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-10-14
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
The study evaluated the diagnostic accuracy of intravenous flat-detector computed tomography (IV FDCT) angiography in assessing hemodynamically significant cerebral vasospasm in patients with subarachnoid hemorrhage (SAH) with digital subtraction angiography (DSA) as the reference.
DSA and IV FDCT were conducted concurrently in patients suspected of having symptomatic cerebral vasospasm postoperatively.
The presence and severity of vasospasm were estimated according to location (proximal versus distal).
Vasospasm >50% was defined as having hemodynamic significance.
Vasospasms <30% were excluded from this analysis to avoid spectrum bias.
Twenty-nine patients (311 vessel segments) were measured.
The intra- and interobserver agreements were excellent for depicting vasospasm (k=0.84 and 0.74, resp.).
IV FDCT showed a sensitivity of 95.7%, specificity of 92.3%, positive predictive value of 93.6%, and negative predictive value of 94.7% for detecting vasospasm (>50%) with DSA as the reference.
Bland-Altman plots revealed good agreement of assessing vasospasm between the two tests.
The discrepancy of vasospasm severity was more noted in the distal location with high-severity.
However, it was not statistically significant (Spearman’s rank test; r=0.15, P=0.35).
Therefore, IV FDCT could be a feasible noninvasive test to evaluate suspected significant vasospasm in SAH.
American Psychological Association (APA)
Jeon, Jin Pyeong& Sheen, Seung Hun& Cho, Yong-Jun. 2014. Intravenous Flat-Detector Computed Tomography Angiography for Symptomatic Cerebral Vasospasm following Aneurysmal Subarachnoid Hemorrhage. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1049198
Modern Language Association (MLA)
Jeon, Jin Pyeong…[et al.]. Intravenous Flat-Detector Computed Tomography Angiography for Symptomatic Cerebral Vasospasm following Aneurysmal Subarachnoid Hemorrhage. The Scientific World Journal No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1049198
American Medical Association (AMA)
Jeon, Jin Pyeong& Sheen, Seung Hun& Cho, Yong-Jun. Intravenous Flat-Detector Computed Tomography Angiography for Symptomatic Cerebral Vasospasm following Aneurysmal Subarachnoid Hemorrhage. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1049198
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049198