Case report. MRI and MR angiography of basilar artery dissection in a child.
MRI showed a pontine infarct and mural thickening of intermediate signal in T1-weighted images proximal to occlusion of the basilar artery in a 10-year-old boy. Two days later the mural thickening was of high signal, consistent with methaemoglobin formation and MR angiography (MRA) showed nonspecific lack of flow in the mid-segment of the basilar artery, which corresponded to a tapered occlusion at arteriography. MRI is more useful than MRA for noninvasive diagnosis of basilar artery dissection.
Scazzeri
F
F
Ospedali Riuniti, Livorno, Italia.
Mascalchi
M
M
Calabrese
R
R
Quilici
N
N
D000784:Aortic Dissection / Q000175:diagnosis*; D015901:Angiography, Digital Subtraction; D001488:Basilar Artery / Q000473:pathology*; D002533:Cerebral Angiography; D002648:Child; D003287:Contrast Media; D005500:Follow-Up Studies; D019786:Gadolinium DTPA; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis*; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008297:Male; D009460:Neurologic Examination; D014715:Vertebrobasilar Insufficiency / Q000175:diagnosis
D003287:Contrast Media; D019786:Gadolinium DTPA