For Physicians: Subspecialties - ENT
Otolaryngological Radiology
Imaging of the head and neck, face, orbits, and temporal bones at TRG is performed by our section of specially trained neuroradiologists, who are highly qualified to provide accurate and timely diagnoses. All of our neuroradiologists have Certificates of Additional Qualification (CAQ) in neuroradiology and head and neck imaging. This is a special qualification that requires American Board of Radiology review and examination. In addition, our imaging protocols have been fine-tuned to provide quality imaging and to optimize diagnosis. We work closely with our referring physicians as well as frequently work together to ensure that we provide the best care for our patients. We strive to provide the highest standards to meet your imaging needs. We provide specially tailored protocols as needed including vocalization maneuvers as well as other special sequences. In addition, if you or your patients have questions or concerns, please feel free to call us and we are more than happy to provide assistance.
Otolaryngological and Head and Neck Procedures:
- MRI and CT of the neck and head
- MRI and CT of the orbits
- MRI of the temporal bones (to include the internal auditory canals, inner ear structures, and brainstem)
- CT of the temporal bones
- CT and MRI of the paranasal sinuses
- Dental CT scans
- MRI of the trigeminal nerves
Otolaryngological radiologists:

Alan Morimoto, MD
Specialty:
Neuroradiology/Head and Neck
Fellowship:
University of Utah
Residency:
Vanderbilt University
Medical Education:
University of New Mexico

Diego Covarrubias, MD
Specialty:
Neuroradiology/Head and Neck
Fellowship:
Harvard Medical School, Massachusetts
Residency:
Mayo Clinic, Rochester, Minnesota
Medical Education:
University of California at Irvine

Ben Jacobson, MD
Specialty:
Neuroradiology / Head and Neck
Fellowship:
University of California, Los Angeles
Residency:
University of Arizona, Diagnostic Radiology
Medical Education:
Oregon Health and Sciences University

John Roll, MD
Specialty:
Neuroradiology/Neurointerventional Radiology
Fellowship:
Vanderbilt University Medical Center
Residency:
University of Minnesota
Medical Education:
Indiana University School of Medicine



