Ernesto Roldan-Valadez, MD, MSc, is a Mexican Board Certified Diagnostic Radiologist and Clinical Investigator at Medica Sur Clinic & Foundation in Mexico city. Dr. Roldan-Valadez is Appointed Professor of the MRI Fellowship at the National Autonomous University of Mexico (UNAM). His current memberships include Radiological Society of North America (RSNA), American Roentgen Ray Society (ARRS) and the Mexican Society of Radiology. Dr. Roldan-Valadez received a Fellowship in whole body MRI and Master Degree in Medical Sciences at UNAM. He is currently Coordinator of Clinical Research and Innovation at Medica Sur Clinic & Foundation. His research lines involves the application and diagnostic performance of new MRI biomarkers in human diseases, specifically brain tumors, quantification of fat in liver and pancreas, aging-related brain diseases such as Alzheimer and epilepsy. Up to October 2013, Dr. Roldan has published 39 papers indexed in PubMed/Medline.