Dr. Wagner received his B.S. degree in Physics from Xavier University, Cincinnati, Ohio in 1971. In 1976 he completed his Ph.D. in Experimental Nuclear Physics from Florida State University, Tallahassee, Florida. He performed his postgraduate training at Memorial-Sloan Kettering National Cancer Center in New York. He was a Tenured Professor of Radiological Sciences at the University of Texas-Houston Medical School, retired in 2018, Houston. He is board certified in diagnostic radiological physics by the American Board of Radiology. He was honoured as a Fellow of the American Association of Physicists in Medicine in 1995 and as a Fellow of the American College of Radiology in 1996.