The Middlesex Hospital Radiology team includes board-certified physicians, technologists, nurses and other important staff members, each of whom plays a critical role in providing patients and their doctors with timely and accurately interpreted radiological results. We take great pride in the expertise and professionalism of our radiology team and the superior technology they benefit from each and every day.
Michael Crain, M.D.
Michael Crain. M.D. attended Oberlin College where he received his Bachelor's Degree, Summa Cum Laude. He then spent a year as a Research Assistant in the Neuroscience Department of Children’s Hospital Medical Center at Harvard University. He earned his M.D. degree from Albert Einstein College of Medicine, and did his internship at the Jersey Shore Medical Center. Dr. Crain completed his residency at the George Washington University Medical Center in Washington, D.C. He did his fellowship on Cross-Sectional Imaging at the George Washington University Medical Center. Dr. Crain is Board Certified from the American Board of Radiology. He is a member of the American College of Radiology, The Radiological Society of North America and the American Roentgen Ray Society. He also serves as President and Chief Executive Officer of RAM Radiology.
Diana M. Hull, M.D., Ph.D.
Diana Hull, M.D., Ph.D., is the Director of the Breast Imaging Services. She attended Mount Holyoke College where she received her Bachelor's Degree in Physics. She earned her M.D. and Ph.D. degrees from Albert Einstein College of Medicine with a Ph.D. in Physiology and Biophysics. Dr. Hull did her internship at Hackensack Medical Center and completed her Diagnostic Radiology Residency at Duke University Medical Center. She did her Breast Imaging training also at Duke. She is board certified in the American College of Radiology. Dr. Hull is a May Rudin Scholar and has been given a fellowship award by the Society of Nuclear Medicine. She is a member of the American College of Radiology and Society of Breast Imagers.
Ravi Jain, M.D., Ph.D.
Ravi Jain, M.D, Ph.D., attended the California Institute of Technology in Pasadena, CA, where he graduated with honors receiving his Masters and Ph.D. in Chemical Engineering. He then earned his M.D. from the University of Miami Medical School, Miami, FL. He completed his residency in diagnostic radiology from the University of Colorado School of Medicine in Denver. He continued his training with a fellowship in Nuclear Medicine at the University of Colorado, where he devoted one year to Cardiac and General Nuclear Medicine, including Gated Blood Pool and Thallium Stress Testing. He also completed a fellowship at Yale University School of Medicine where his program was divided into three modalities: MRI, CT/US, and interventional procedures. He is board certified with the American Board of Radiology, with special competence in Nuclear Medicine. He is also certified by the American Society of Nuclear Cardiology.
Michael G. Johnson, Jr., M.D.
Michael G. Johnson, Jr., M.D., a Connecticut native, specializes in Interventional Radiology. Dr. Johnson received his Bachelor of Science degree in Molecular and Cell Biology from the University of Connecticut and earned his Medical Degree at the University of Connecticut School of Medicine. He completed a transitional internship year at the Hospital of Saint Raphael in New Haven, CT, and graduated as Chief Resident in Diagnostic Radiology from Yale-New Haven Hospital. He went on to complete a fellowship in Vascular and Interventional Radiology at the Harvard-affiliated Beth Israel Deaconess Medical Center in Boston, MA. Dr. Johnson is board certified by the American Board of Radiology in Interventional Radiology and Diagnostic Radiology. He is a member of the Society of Interventional Radiology, American College of Radiology, Radiological Society of North America, and the American Medical Association.
Bruce Kovalenko, M.D.
Bruce Kovalenko, M.D., is a Vascular and Interventional Radiologist. He earned his medical degree at New York University, and then did his Residency in Diagnostic Radiology at Bridgeport Hospital, part of the Yale University Program. He then completed his Vascular and Interventional Fellowship at the University of Pennsylvania. Dr. Kovalenko is Board Certified by the American Board of Radiology in Interventional Radiology and Diagnostic Radiology. He is also a member of Phi Beta Kappa, Society of Interventional Radiology, and the American Medical Association. His specific interests include oncologic intervention, including chemo and radio-embolization, as well as percutaneous ablation of primary and metastatic tumors. He also specializes in the following areas: uterine artery embolization for treatment of uterine fibroid disease, peripheral arterial disease, permanent and temporary dialysis access, treatment of peripheral and pulmonary arteriovenous malformation, and venous access procedures.
Daniel H. MacArthur, M.D.
Daniel MacArthur, M.D., is a Vascular and Interventional Radiologist. He earned his medical degree at the University of Maryland School of Medicine, and then did his Residency in Diagnostic Radiology at Tufts Medical Center. He completed a Vascular and Interventional Radiology Fellowship at the Harvard affiliated Beth Israel Deaconess Medical Center in Boston. He is a member of the Society of Interventional Radiology, Radiological Society of North America, and the American College of Radiology. Dr. MacArthur's specific interests include interventional oncology, including catheter directed chemo and radio-embolization, as well as percutaneous ablation of primary and metastatic tumors. He also specializes in uterine artery embolization, venous access, biliary intervention, and dialysis access. Dr. MacArthur is board certified by the American Board of Radiology in Interventional Radiology and Diagnostic Radiology.
Nancy J. Rini, M.D.
Nancy Rini, M.D., is the Director of MRI Services, and Chair of the Department of Radiology. She completed her Residency in Diagnostic Radiology at the University of Colorado Health Sciences Center and served as Chief Resident in Radiology. She received her certification from the American Board of Radiology. Dr. Rini completed an MRI fellowship at Northwestern University with emphasis on Body MRI and Musculoskeletal MR Imaging. Dr. Rini is a also Certified Clinical Densitometrist (C.C.D), demonstrating her expertise in Bone Densitometry, and she oversees the Bone Density service.
Craig A. Walden, M.D.
Craig Walden, M.D. was named a “Top Doc” in the Connecticut Magazine 2010, 2011 and 2012 listings of top physicians in the state. He is the medical director of the Middlesex Hospital Breast Imaging Center and the section chief of CT (Computed Tomography). Dr. Walden is the previous chairman of the Middlesex Hospital Radiology Department.
He received his Bachelor of Arts degree in Chemistry and Psychiatry at the University of Minnesota, and his medical degree from the University of Minnesota School of Medicine. He then completed an internship and two years of residency in Internal Medicine at Strong Hospital in Rochester, New York. Dr. Walden completed his residency training in Diagnostic Radiology at the Northwestern University Hospital in Illinois, where he served as chief resident.
Dr. Walden is certified with the American Board of Internal Medicine and the American Board of Radiology. He is also an active member of the American College of Radiology (ACR), the Radiological Society of North America (RSNA) and the American Roentgen Ray Society (ARRS).
Robert Wolek, M.D.
Robert Wolek, M.D., received his Bachelor’s degree in Biology at Brown University, and continued at Brown University's School of Medicine and completed an eight-year program in Liberal Medical Education where he earned his MD degree. Dr. Wolek completed a Diagnostic Radiology Residency program at Bridgeport Hospital. He then completed a fellowship program in Nuclear Medicine at Yale University School of Medicine. He is board certified with the American Board of Radiology and the American Board of Nuclear Medicine.
Zaixiang Sherry Zhang, M.D.
Sherry Zhang, M.D., Ph.D., a Neuroradiologist, completed her surgical internship at University of Connecticut and then did her residency in Diagnostic Radiology at Wayne State University and Detroit Medical Center in Michigan. She completed her fellowship training in Neuroradiology at Emory University, Atlanta. She has published many articles in Neuroradiology, and spent several years as a Research Fellow at Harvard Medical School. Dr. Zhang is board certified by the American Board of Radiology and in the ABR subspecialty of Neuroradiology. Dr. Zhang practices general radiology with a focus on neuroradiology studies.