Richard C. Semelka, MD, is one of the foremost authorities on MRI of the abdomen and pelvis, with six MRI text-books and over 200 peer-reviewed papers to his credit. Dr. Semelka has also authored numerous chapters and review articles on MRI of the body, and has presented his work at meetings around the world. Dr. Semelka is the Director of MR Services, Professor and Vice Chair for Research, Department of Radiology, University of North Carolina at Chapel Hill.