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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
medicine
Detecting subarachnoid hemorrhage: Comparison of combined FLAIR/SWI versus CT
European Journal of Radiology, Volume 82, No. 9, Year 2013
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Description
Objectives Aim of this study was to compare the utility of susceptibility weighted imaging (SWI) with the established diagnostic techniques CT and fluid attenuated inversion recovery (FLAIR) in their detecting capacity of subarachnoid hemorrhage (SAH), and further to compare the combined SWI/FLAIR MRI data with CT to evaluate whether MRI is more accurate than CT. Methods Twenty-five patients with acute SAH underwent CT and MRI within 6 days after symptom onset. Underlying pathology for SAH was head trauma (n = 9), ruptured aneurysm (n = 6), ruptured arteriovenous malformation (n = 2), and spontaneous bleeding (n = 8). SWI, FLAIR, and CT data were analyzed. The anatomical distribution of SAH was subdivided into 8 subarachnoid regions with three peripheral cisterns (frontal-parietal, temporal-occipital, sylvian), two central cisterns and spaces (interhemispheric, intraventricular), and the perimesencephalic, posterior fossa, superior cerebellar cisterns. Results SAH was detected in a total of 146 subarachnoid regions. CT identified 110 (75.3%), FLAIR 127 (87%), and SWI 129 (88.4%) involved regions. Combined FLAIR and SWI identified all 146 detectable regions (100%). FLAIR was sensitive for frontal-parietal, temporal-occipital and Sylvian cistern SAH, while SWI was particularly sensitive for interhemispheric and intraventricular hemorrhage. Conclusions By combining SWI and FLAIR, MRI yields a distinctly higher detection rate for SAH than CT alone, particularly due to their complementary detection characteristics in different anatomical regions. Detection strength of SWI is high in central areas, whereas FLAIR shows a better detection rate in peripheral areas. © 2013 Elsevier Ireland Ltd.
Authors & Co-Authors
Verma, Rajeev Kumar
Switzerland, Bern
University of Bern
Kottke, Raimund
Switzerland, Bern
University of Bern
Andereggen, Lukas
Switzerland, Bern
University of Bern
Weisstanner, Christian
Switzerland, Bern
University of Bern
Zubler, Christoph
Switzerland, Bern
University of Bern
Gralla, Jan
Switzerland, Bern
University of Bern
Kiefer, Claus
Switzerland, Bern
University of Bern
Slotboom, Johannes
Switzerland, Bern
University of Bern
Wiest, Roland G.
Switzerland, Bern
University of Bern
Schroth, Gerhard
Switzerland, Bern
University of Bern
Ozdoba, Christoph
Switzerland, Bern
University of Bern
El-Koussy, Marwan Mohamed
Switzerland, Bern
University of Bern
Egypt, Cairo
Cairo University Hospitals
Statistics
Citations: 113
Authors: 12
Affiliations: 2
Identifiers
Doi:
10.1016/j.ejrad.2013.03.021
ISSN:
0720048X
e-ISSN:
18727727