Magnetic resonance evaluation of peripheral arterial disease.

Overview

This article provides the reader with a clinically relevant practical approach to obtaining high-quality magnetic resonance angiograms of the lower extremities. The physics underlying this imaging are discussed as they relate to practical matters such as contrast timing schemes. Model protocols for various scanners are presented, and the rationale for the choices. In addition to the standard core protocol, alternative protocols are presented, so that the reader will have a sense of the full palette of options available, and be readily able to appreciate the relative advantages and disadvantages of each. Applications of these protocols in imaging various disorders then are discussed, with clinical exams presented. Pearls and pitfalls regarding imaging techniques and various tricks of the trade also are discussed.