Multiparametric MRI and ultrasound findings in patients with internal carotid artery dissection.
In this study, clinical, MRI, and ultrasound findings in 33 patients with 37 MRI-confirmed internal carotid artery dissections (ICADs) were investigated. In 24 of 37 (64.9%) diffusion-weighted MRI (DWI) revealed acute ischemic brain lesions. ICADs with subsequent DWI lesions usually had a concentric position of the mural hematoma (14 of 24; 58.3%). In contrast, ICADs without DWI lesions (13 of 37; 35.1%) demonstrated an eccentric position of the mural hematoma (10 of 13; 76.9%), sometimes without ultrasound abnormality (5 of 13; 38.5%), while nonischemic clinical signs were frequent (11 of 13; 84.6%). A hemodynamic stroke pattern with comparatively large ischemic lesions along the hemodynamic risk zones was noted in 7 of 24 patients (29.2%).
Lanczik
Oliver
O
Department of Neurology, Universitätsklinikum Mannheim, University of Heidelberg, Mannheim, Germany.
Szabo
Kristina
K
Hennerici
Michael
M
Gass
Achim
A
D001921:Brain / Q000098:blood supply / Q000473:pathology / Q000503:physiopathology; D020520:Brain Infarction / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000503:physiopathology; D002545:Brain Ischemia / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000503:physiopathology; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000473:pathology / Q000503:physiopathology; D020215:Carotid Artery, Internal, Dissection / Q000000981:diagnostic imaging* / Q000473:pathology* / Q000503:physiopathology; D002536:Cerebral Arteries / Q000033:anatomy & histology / Q000503:physiopathology; D002560:Cerebrovascular Circulation / Q000502:physiology; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests; D011446:Prospective Studies; D018616:Ultrasonography, Doppler, Duplex