A Grading Scale for Pial Collaterals in Middle Cerebral Artery Total Occlusion Based on Time-of-flight MR Angiography Source Images

Purpose: To verify whether a new grading based on time-of-flight magnetic resonance angiography source images (TOF-MRAsi) can reflect the abundance of pial collaterals, in patients with total occlusion of M1 segment of middle cerebral artery in the chronic stage.Methods: In this single-center retros...

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Bibliographic Details
Published in:Magnetic Resonance in Medical Sciences 2019, Vol.18(1), pp.62-69
Main Authors: Yuan, Huai Wu, Ji, Ren Jie, Wang, An Li, Lin, Ya Jie, Chen, Han Feng, Xu, Zi Qi, Peng, Guo Ping, Luo, Ben Yan
Format: Article
Language:English
Subjects:
Angiography
Cerebral blood flow
collateral circulation
comparative study
Digital imaging
digital subtraction angiography
Empirical analysis
Evaluation
Grading
Ischemia
Magnetic resonance
magnetic resonance angiography
Magnetic resonance imaging
Major Paper
Medical imaging
middle cerebral artery occlusion
Occlusion
Resonance
Sensitivity
Sensitivity analysis
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Summary:Purpose: To verify whether a new grading based on time-of-flight magnetic resonance angiography source images (TOF-MRAsi) can reflect the abundance of pial collaterals, in patients with total occlusion of M1 segment of middle cerebral artery in the chronic stage.Methods: In this single-center retrospective study, consecutive patients with total occlusion of M1 segment of middle cerebral artery, with both magnetic resonances angiography and digital subtraction angiography image were included. Time-of-flight magnetic resonance angiography source images were evaluated in a blinded fashion for pial collaterals (PCs) that were graded on a four-point scale. Good and poor PCs were defined as TOF-MRAsis grade
ISSN:1347-3182
1880-2206
DOI:10.2463/mrms.mp.2018-0001