Dr. Barr is a Professor of Radiology at Northeast Ohio Medical University. He practices at Southwoods Imaging in Youngstown, Ohio. He received his BS in Chemistry at Ohio State University, a PhD in Inorganic Chemistry at Michigan State University, and his MD from Case Western Reserve University. He completed a year internship in internal medicine at university hospitals of Cleveland and a Diagnostic Radiology residency at the Cleveland Clinic Foundation where he was chief resident. Dr. Barr completed a cross sectional imaging fellowship at University if California at San Francisco. He is the Editor-in-Chief of the Journal of Ultrasound in Medicine and Treasurer of the International Contrast Ultrasound Society. He is the co-chair of the QIBA CEUS committee and Co-chairman of the PEGUS attenuation group. Dr. Barr has published over 200 peer reviewed papers, several book chapters, and a book on Breast Elastography, a book “Elastography, a Practical Approach” and a book “Multiparametric Ultrasound for Chronic Liver Disease: A Practical Approach”. He has presented over 500 scientific presentations and invited lectures world-wide. He has been involved in ultrasound elastography and ultrasound contrast for over 20 years presenting multiple presentations worldwide on these subjects.