Dr. John Newell Jr, MD is a professor of Radiology and Biomedical Engineering, Director of the Radiology Image Phenotyping Laboratory and co-Director of the Iowa Institute for Biomedical Imaging. He has over 30 years of experience in clinical research and clinical practice in the Radiology sub-specialty of Cardio-Thoracic Radiology.): Dr. John Newell Jr, MD is a professor of Radiology and Biomedical Engineering, Director of the Radiology Image Phenotyping Laboratory and co-Director of the Iowa Institute for Biomedical Imaging. He has over 30 years of experience in clinical research and clinical practice in the Radiology sub-specialty of Cardio-Thoracic Radiology.