Our Team



 Mike Silosky, M.S.


Mike SiloskyMike Silosky, M.S. is the nuclear medicine physicist supporting the CU-RIC as well as Anschutz Medical Campus, UCHealth, and Children’s Hospital Colorado.  He received his M.S. in medical physics from the University of Texas Graduate School of Biomedical Sciences, M.D. Anderson Cancer Center.  While he has performed a variety of roles since joining the CU faculty in 2013, his research interest currently focus on small lesion detectability using novel radiotracers for PET imaging.Jessica Ruvalcaba



Bennett Chin, MD




Bennett Chin photo Bennett Chin, MD , is the Chief of Nuclear Medicine and Molecular Imaging at the University of Colorado  Department of Radiology. Dr. Chin received his MD degree from the University of Texas, and he completed his Nuclear Medicine fellowship at Johns Hopkins University. Dr. Chin’s research interests have broadly included studies of cellular metabolism, and his practice interests have focu sed in targeted molecular imaging and therapy of tumors ( theranostics). He has served as PI in multiple Phase I-III clinical trials of novel radiopharmaceuticals. Dr. Chin joined the faculty at the University of Colorado School of Medicine in 2017.


Daniel Litwiller, Ph.D., MBA 

Daniel Litwillerdaniel.litwiller@cuanschutz.edu

Dan Litwiller. Ph.D., MBA, is a site scientist with GE Healthcare supporting the new PET/MR installation at the CU-RIC. He received his Ph.D. in Biomedical Engineering from Mayo Clinic Rochester, where he also began his career with GE as a site scientist. He spent 5 years at GE’s Applied Science Laboratory in New York City, before moving to Denver in 2019. His research interests include MR application development, deep-learning based image reconstruction, and automation.

Ramesh Karki, MS, CNMT, RT (CT) (MR) 


Ramesh KarkiRamesh Karki, MS, is the Operations Manager and the Chief Technologist (certified in Nuclear Medicine, CT, and MRI) of the Colorado University – Research Imaging Center.  Ramesh has been with the University research since 2013.

Mehul Lakhani, MBA  


Mehul LakhaniMehul Lakhani is the Director of Finance and Administration for the Department of Radiology as well as the CU Research Imaging Center. He holds a MBA in Health Administration and has been with the University of Colorado for 17+ years in multiple capacities. He brings extensive knowledge and experience in successfully managing finance and operations of an academic department that is involved in Clinical, Research and Teaching missions.

Houchun Hu, Ph.D.


Houchun HuHarry has been active in the area of adult and pediatric MRI over the past 15 years and has worked at Children’s Hospital Los Angeles, Phoenix Children’s Hospital, and Nationwide Children’s Hospital, prior to joining the University of Colorado in 2022.  He obtained his undergraduate degree in biochemical engineering at the University of Southern California in 2001, and his PhD in Medical Imaging from the Mayo Clinic in 2006.  He has served in an editorial capacity for Magnetic Resonance in Medicine, Radiology, Journal of Magnetic Resonance Imaging, and Magnetic Resonance Materials in Physics, Biology and Medicine.  Harry’s main interests are in translational and clinical research of MRI techniques.  He has published over 120+ first-author and co-authored manuscripts and book chapters, and holds several US patents in MRI technology.



Dan Lopez-Paniagua, Ph.D.


Dan Lopez-PaniaguaDan Lopez-Paniagua, Ph.D., is a research faculty member of Colorado's Research Imaging Center. Dr. Lopez Paniagua received his M.S. and Ph.D. degrees in Cognitive Neuroscience from Colorado State University and post-doctoral training at Georgetown University. Dr. Lopez Paniagua's research is devoted to the development and analysis of imaging-based biomarkers for translational research projects ranging from pre-clinical studies to large, international drug trials in both academic and industry settings. 


Diana Osborne


Diana OsborneScheduler/Receptionist for CU. Research Imaging Center. Over 9 years Radiology imaging specializing in all modalities with emphasis on Breast imaging. Born in NY but raised in Colorado.



Victoria Bress, BS


Victoria Bress (2)

Victoria Bress is the Research Services Program Director for the Department of Radiology. She's been with the University of Colorado Anschutz Medical Campus for 18+ years and brings her comprehensive experience and knowledge in research finance and administration. 


Jennifer Desiato, B.S., CNMT, NMTCB(CT)


Jennifer DesiatoJen Desiato, BS, CNMT, NMTCB(CT), is a Diagnostic Procedure Technologist at the Colorado University Research Imaging Center who specializes in Nuclear Medicine and CT. She attended college at the University at Buffalo before moving to Denver in 2019.

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