Studio dell'arco aortico e dell'origine dei tronchi sovraortici: Validazione di una tecnica angio-RM con bolo di gadolinio

Abstract

Our purpose was to evaluate the utility of Gadolinium-enhanced MR angiography in the study of the aortic arch and arch vessels disease.

Twelve patients with cerebrovascular diseases underwent MR examination at 1.5 T with a body coil and 3D FISP sequence (TRITE/flip angle 5.0–6.0/2.0/50°; acquisition time: 26–31 sec). Gadolinium infusion was timed for maximum arterial contrast during acquisition of central portion of K-space.

For this purpose we administer a “test dose” of 2 ml of Gadolinium with a power injector. In all examinations we had a good visualization of the aortic arch and arch vessels up to carotid bifurcations.

The evaluation of vertebral arteries and their origins was sometimes suboptimal because of the lower spatial resolution.

Our preliminary results indicate that 3D Gadolinium enhanced MR angiography has the potential to become an accurate imaging method for detection of arch vessels diseases.

Keywords

aortic arch epiaortic vessels MRA Gadolinium

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