Meeting Banner
Abstract #0483

Relationship between MR characteristics of peripheral artery lesions and difficulty of peripheral endovascular procedures

James Jiewen Zhou1, Trisha L. Roy1,2, Hou-Jou Chen1,3, Andrew D. Dueck1,2, and Graham A. Wright1,3

1Schulich Heart Program and the Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, ON, Canada, 2Division of Vascular Surgery, Department of Surgery, University of Toronto, Toronto, ON, Canada, 3Department of Medical Biophysics, University of Toronto, Toronto, ON, Canada

The most common mode of failure for percutaneous vascular interventions (PVI) is the inability to cross hard lesions with a guidewire. This study uses magnetic resonance (MR) lesion characterization to predict the difficulty of PVI. Steady state free precession (SSFP) MR angiography and ultrashort echo time imaging were used to categorize lesions as “hard” (e.g. calcium, collagen), or “soft” (thrombus, lipids). 17 patients were imaged prior to PVI. MRI-defined hard lesions required significantly longer time to cross (14.81 min vs 1.61 min) and required stenting more often.

This abstract and the presentation materials are available to members only; a login is required.

Join Here