Longitudinal Assessment of Hyperplasia Using Magnetic Resonance Imaging without Contrast in a Porcine Arteriovenous Graft Model

Unlike histology, MRI provided longitudinal 3-dimensional views of hyperplasia within the AV grafts. This ability of MRI to more completely identify the geometry of hyperplasia and to quantify the tissue volume in vivo could provide benefits over histologic analysis in assessing the pathology of AV graft failure and the efficacy of antihyperplasia interventions.