School of Medicine
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Kristina Elizabeth Hawk
Clinical Assistant Professor, Radiology - Rad/Nuclear Medicine
BioKristina Elizabeth Hawk, MS MD PhD is a Nuclear Medicine Physician and Neuroradiologist. As a physician scientist, integrated MD/PhD training helped build a foundation to explore translational research efforts, using a full and intricate understanding of the research process, and the developed ability to understand, discuss and teach new emerging concepts. Dr. Hawk’s dissertation in Neuroscience focused on the regulation of Nitric Oxide Synthase in the dorsal and ventral striatum, exploring the neurochemical role of nitric oxide producing interneurons, and their ability to coordinate dopaminergic and glutamatergic signaling in areas of the brain relevant to cognition and motivated behavior.
Eager to expand her passion into the field of Medical Radiation Physics, she also completed a separate Masters degree in Medical Radiation Physics. This provided her with in depth training of how therapeutic and diagnostic instruments use both ionizing and non-ionizing radiation in the clinical setting. She then completed her Medical Doctorate and Diagnostic Radiology Residency at the University of Southern California (USC), learning the art of medicine while serving the diverse population at Los Angeles County Hospital.
Dr. Hawk completed clinical fellowship requirements in Nuclear Medicine at USC, and is now Board Certified by the American Board of Nuclear Medicine. She also completed a Neuroradiology fellowship at USC, and is Board Certified the American Board of Radiology. She served as both the Chief Resident and Chief Neuroradiology Fellow.
Dr. Hawk has held multiple local and national leadership positions, including positions in the American College of Radiology (ACR), the American College of Nuclear Medicine (ACNM) and the Society of Nuclear and Molecular Medicine (SNMMI). Dr. Hawk is an editorial board member of the Journal of the American College of Radiology (JACR). She has served as the Vice-Chair for Education for the Nuclear Medicine Resident Organization of the ACNM, and the Educational Liaison for the Resident and Fellow Section of the ACR. Currently, she serves on the national ACR Commission for Women and General Diversity as well as the ACR Commission on Nuclear Medicine. Dr. Hawk also sits on the ACR Council Steering Committee.
Dr. Hawk is committed to continually exploring the beautiful applications of ionizing and non-ionizing radiation to image and treat the human body.
Jeremy J. Heit, MD, PhD
Assistant Professor of Radiology (Neuroimaging and Neurointervention) and, by courtesy, of Neurosurgery
Current Research and Scholarly InterestsOur research seeks to advance our understanding of cerebrovascular disease and to develop new minimally invasive treatments for these diseases. We study ischemic and hemorrhagic stroke, cerebral aneurysms, delayed cerebral ischemia, cerebral arteriovenous malformations (AVMs), dural arteriovenous fistulae, and other vascular diseases of the brain. We use state-of-the-art neuroimaging techniques to non-invasively study these diseases, and we are developing future endovascular technologies to advance neurointerventional surgery.
Professor of Radiology (Cardiovascular Imaging), Emeritus
Current Research and Scholarly InterestsImaging of cardiovascular diseases with CT, magnetic resonance imaging and spectroscopy
Affiliate, Rad/Pediatric Radiology
BioDr. Herickhoff has broad experience in ultrasound research & development, spanning 14 years in both academia and industry (GE Global Research and Philips Medical Systems). He currently serves as Deputy Director of the Radiological Sciences Laboratory, and his current research interests include novel medical ultrasound transducer designs and methods for elasticity, contrast, and flow imaging, and specialized ultrasound imaging systems for pediatrics and interventional procedure guidance.
Sanna Elizabeth Herwald
Affiliate, Dean's Office Operations - Dean Other
Resident in Radiology
BioSanna Herwald received her M.D. and Ph.D. degrees from Tufts University. Her Ph.D. research in the field of Microbiology focused on the opportunistic fungal pathogen Candida albicans. During her time in the M.D.-Ph.D. program she discovered her interest in Radiology, and the possibilities for visualizing the interaction between microorganisms and the human body.