Significance of hyperintense arteries on Gd-enhanced 3D T1W black-blood imaging in acute stroke

European Radiology
Kyung-Yul LeeS J Ahn

Abstract

To elucidate the pathogenesis of hyperintense arteries on Gd-enhanced 3D T1W BB FSE and their clinical significance in acute middle cerebral artery (MCA) stroke. We retrospectively reviewed 20 patients with MCA infarction. We measured the contrast-to-noise ratio between hyperintense artery and adjacent grey matter on T2-FLAIR and Gd-enhanced 3D T1W BB FSE and compared them by using Student's t test. The agreement of positive hyperintense artery between T2 FLAIR and Gd-enhanced 3D T1WI BB FSE was estimated with intraclass correlation coefficient. Our cohort was dichotomised into two groups depending on hyperintense artery scores, and clinical data were compared between two groups by using Student's t test and chi-square test. The contrast between hyperintense artery and grey matter on Gd-enhanced 3D T1W BB FSE was significantly higher than that on T2-FLAIR (2.27 ± 1.65 versus 0.94 ± 0.86, p = 0.01). Overall, agreement of hyperintense arteries on T2-FLAIR and Gd-enhanced 3D T1W BB FSE was excellent (ρ = 0.76, p < 0.01). Patients with higher hyperintense artery scores had higher perfusion deficits that those with lower hyperintense artery scores (196.7 ± 41.4 vs 100.1 ± 130.1, p = 0.03). Hyperintense arteries on Gd-enhanced 3D T1W...Continue Reading

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Citations

Related Concepts

Structure of Cerebral Artery
Image Enhancement
Magnetization Transfer Contrast Imaging
Retrospective Studies
Incidence Studies
Middle Cerebral Artery Syndrome
Acute Cerebrovascular Accidents
Imaging, Three-Dimensional, Computer Assisted
Gray Matter
Cerebrovascular Accident

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