[Contribution of fast-sequence three-dimensional MRI angiography with Gadolinium injection in the evaluation of supra-aortic vessels].
Sixty-nine patients with cervical atherosclerotic disease were evaluated by Magnetic Resonance (MR) angiography using a coronal 3D gradient echo gadolinium enhanced sequence. The image quality was evaluated for each artery and ostium on MIP reconstructions. A comparison with conventional angiography was achieved in 27 patients. All MR examinations were assessable; a second injection was performed in ten patients. All carotid bifurcations were visualized. The ostium of the common carotid artery was not assessable in 44% of cases due to the limited coverage. The evaluation of the posterior circulation was good in 90% of cases. The agreement between MR angiography and conventional angiography was good despite a tendency to overestimate moderate stenoses. Stenoses greater than 70%, carotid occlusions and vertebral stenoses greater than 50% were correctly detected.
Service de Neuroradiologie, Hôpital R Salengro, Lille, France.
P
P
Martinat
X
X
Leclerc
J Y
JY
Gauvrit
F
F
Giboreau
J P
JP
Pruvo
D000293:Adolescent; D000328:Adult; D000368:Aged; D000792:Angiography; D001157:Arterial Occlusive Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D002340:Carotid Artery Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D002561:Cerebrovascular Disorders / Q000175:diagnosis* / Q000000981:diagnostic imaging; D005069:Evaluation Studies as Topic; D005682:Gadolinium; D006801:Humans; D018810:Magnetic Resonance Angiography / Q000379:methods; D008875:Middle Aged
D005682:Gadolinium
Apport des séquences rapides d'angio-IRM 3D avec injection de Gadolinium dans l'exploration des axes supra-aortiques.