Ressonância magnética de alta resolução espacial para estudo arterial periférico com aquisição segmentar e contínua: Mobitrak

Our purpose is to present a new technique to evaluate arterial obstructions in the lower limbs by magnetic resonance using a single paramagnetic contrast agent double dose slowly administered using an infusion pump. The method is based on a software and hardware called Mobitrak available on the Philips high field magnetic resonance machines, which allows vascular evaluation of wide areas with continuous and segmentar high resolution acquisitions. An echo gradient sequence (FFE) was used, which allowed three simultaneous planning and had little overlapping on the intersections. This dynamic sequence is achieved in two phases, prior and during contrast injection, and allows signal subtraction of adjacent tissues and 3D reconstructions. The method has various advantages such as better visualization of the tibiofibular segments, study of the whole lower limb in a single patient visit, and reduction of the volume of contrast injected.