Dr. Luo was a nuclear medicine physicist in St. Vencent Medical Center in New York and appointed clinical assistant professor in Medical College of New York in 1995. He also served as medical physicist in Northwestern Memorial Hospital in Chicago from 2004 to 2007. Dr. Luo completed his research project on Monte Carlo Simulation for Compton Scattering Correction in SPECT in University of Michigan Medical Center and received his Ph.D. in Medical Physics in 1993 from Oakland University. He has published many articles and few book chapters.