I have 27 years of experience, and specialize in the field of diagnostic imaging (technical aspects) and medical economics with specific knowledge in the areas of magnetic resonance imaging (MRI) performance characteristics, uptime analysis, modality utilization and operational benchmarking. I have published on such topics as MRI quality control, operational benchmarking, imaging economics, MRI technology, and future aspects of MRI. I have testified on MRI economics, MRI performance characteristics, patent issues, and analysis of service records. I am an associate adjunct professor in a radiology department, I serve on the MRI Accreditation Committee of the American College of Radiology (ACR) and I have personally tested over 1,500 MRI units.