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RT Journal Article
SR Electronic
T1 Diagnosing Carotid Near-Occlusion with Phase-Contrast MRI
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 927
OP 929
DO 10.3174/ajnr.A7076
VO 42
IS 5
A1 Johansson, E.
A1 Zarrinkoob, L.
A1 Wåhlin, A.
A1 Eklund, A.
A1 Malm, J.
YR 2021
UL http://www.ajnr.org/content/42/5/927.abstract
AB SUMMARY: Carotid near-occlusion is a frequently overlooked diagnosis when CTA examinations are assessed in routine practice. To evaluate the potential value of phase-contrast MR imaging in identifying near-occlusion, we examined 9 carotid near-occlusions and 20 cases of conventional ≥50% carotid stenosis (mean stenosis degree, 65%) with phase-contrast MR imaging. Mean ICA flow was lower in near-occlusions (52 mL/min) than in conventional ≥50% stenosis (198 mL/min, P &lt; .001). ICA flow of ≤110 mL/min was 100% sensitive and specific for near-occlusion. Phase-contrast MR imaging is a promising tool for diagnosing carotid near-occlusion.PCphase-contrast