title: The role of contrast-enhanced MR angiography in the assessment of recently ruptured intracranial aneurysms: a comparative study.
abstract: We evaluated contrast-enhanced MR angiography (MRA) for the identification of recently ruptured cerebral aneurysms. We studied 23 aneurysms in 18 patients (age range 34-72 years) with aneurysms of the anterior (n = 17) and posterior (n = 6) circulation by comparing 3D time-of-flight (TOF), contrast-enhanced MRA and digital subtraction angiography (DSA). In four of 23 aneurysms, 3D-TOF did not show the lesion. Contrast-enhanced MRA successfully depicted all aneurysms except one. T1 contamination artefacts from subarachnoid or intraparenchymal haemorrhages were evident on the 3D-TOF images in six cases. The artefacts were completely eliminated on the contrast-enhanced MRA images by subtraction of the pre-contrast images. The diagnostic information in patients with subarachnoid haemorrhages (SAHs) provided by contrast-enhanced MRA was comparable to that provided by DSA.
authors.affiliation: Department of Radiology, Trakya University School of Medicine, Mimar Sinan m, Muammer Aksoy c, Bora apt, A-15, 22030 Edirne, Turkey. drercument@yahoo.com
authors.forename: Ercument
authors.initials: E
authors.lastname: Unlu
authors.forename: Bilge
authors.initials: B
authors.lastname: Cakir
authors.forename: Burak
authors.initials: B
authors.lastname: Gocer
authors.forename: Nermin
authors.initials: N
authors.lastname: Tuncbilek
authors.forename: Murat
authors.initials: M
authors.lastname: Gedikoglu
mesh_terms: D000328:Adult; D000368:Aged; D017542:Aneurysm, Ruptured / Q000175:diagnosis*; D015901:Angiography, Digital Subtraction; D016477:Artifacts; D002533:Cerebral Angiography; D003287:Contrast Media; D003937:Diagnosis, Differential; D004630:Emergencies; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D002532:Intracranial Aneurysm / Q000175:diagnosis*; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D018709:Statistics, Nonparametric
chemical_list: D003287:Contrast Media