title: Arterial spin labeling shows cortical collateral flow in the endovascular treatment of vasospasm after post-traumatic subarachnoid hemorrhage.
abstract: We report here on the case of a patient who, 10 days prior to his admission to hospital, had suffered a bicycle accident. He presented with signs of minor dysphasia. A brain CT-scan revealed slight subarachnoid hemorrhage (SAH) in the left sylvian fissure as well as narrowing of the distal M1 segment of the left middle cerebral artery (MCA) on CT-angiography. MRI showed diffusion abnormalities and hypoperfusion in the left MCA territory with cortical hyperperfusion on arterial spin labeling (ASL). Arteriography confirmed the vasospasm, but showed no sign of aneurysm. Angioplasty of the narrowed MCA was successful, and follow-up MRI showed reperfusion of the MCA territory.
authors.affiliation: Department of Radiology and Neuroradiology section, DISIM, Geneva University Hospital, 24, rue Micheli-du-Crest, 1211 Genève 14, Switzerland.
authors.forename: S
authors.initials: S
authors.lastname: Altrichter
authors.forename: Z
authors.initials: Z
authors.lastname: Kulcsar
authors.forename: M
authors.initials: M
authors.lastname: Jägersberg
authors.forename: A
authors.initials: A
authors.lastname: Federspiel
authors.forename: M
authors.initials: M
authors.lastname: Viallon
authors.forename: K
authors.initials: K
authors.lastname: Schaller
authors.forename: D A
authors.initials: DA
authors.lastname: Rüfenacht
authors.forename: K-O
authors.initials: KO
authors.lastname: Lövblad
mesh_terms: D001930:Brain Injuries / Q000150:complications / Q000175:diagnosis / Q000503:physiopathology*; D002560:Cerebrovascular Circulation / Q000502:physiology*; D003097:Collateral Circulation / Q000502:physiology*; D006801:Humans; D018810:Magnetic Resonance Angiography; D008297:Male; D013113:Spin Labels; D013345:Subarachnoid Hemorrhage / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology*; D014057:Tomography, X-Ray Computed; D020301:Vasospasm, Intracranial / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy*; D055815:Young Adult
chemical_list: D013113:Spin Labels