2026 Editorial Fellows Announced

Suyash Mohan, MD, is the 2026 RSNA William R. Eyler Editorial Fellow, and Ashwin Singh Parihar, MD, has been named the 2026 RSNA William W. Olmsted Trainee Editorial Fellow. Hyun Soo Ko, MD, was selected as the recipient of the 2026 RSNA Herbert Y. Kressel International Editorial Fellow.

Dr. Mohan is a professor of radiology and neurosurgery and director of the neuroradiology clinical research division of the Perelman School of Medicine at the University of Pennsylvania in Philadelphia, where he is also associate chair for faculty affairs in the Department of Radiology.

He completed his radiology residency at the Moti Lal Nehru Medical College in Allahabad, India, and served as chief resident during his neuroradiology postdoctoral fellowship at the Sanjay Gandhi Post Graduate Institute of Medical Sciences in Lucknow, India. He also completed a neuroradiology fellowship at the National Neuroscience Institute in Singapore and was a clinical lecturer of neuroradiology at the University of Michigan in Ann Arbor.

“Dr. Mohan brings an impressive combination of clinical expertise, academic scholarship and a track record for advancing the field of radiology,” said Suhny Abbara, MD, Radiology editor. “I am confident that Dr. Mohan's analytical skills and scholarly experience will have a significant impact during his fellowship. This fellowship experience will allow him to further develop his editorial acumen, cultivate valuable connections with leaders in radiologic publishing and contribute meaningfully to the advancement of radiology.”

Dr. Mohan is an associate editor of RadioGraphics and serves as chair of its neuroradiology review panel. He is involved with several professional societies. His clinical and research interests focus on neuro-oncologic imaging, advanced and ultra-high field MRI techniques, MR spectroscopy, AI applications in neuroradiology, glioblastoma treatment response assessment and translational neuroimaging. He has authored over 218 peer-reviewed publications, 29 book chapters and three books.

“It is a tremendous honor to be selected for the Eyler Fellowship. Radiology journalism sits at the intersection of science, education, mentorship and clinical practice, and I have seen firsthand how thoughtful radiology journalism can shape imaging utilization, influence clinical decision-making and ultimately improve patient care,” Dr. Mohan said. “As the practice of radiology continues to evolve rapidly with emerging technologies such as AI and other advanced imaging techniques, strong scientific journalism and editorial leadership will play an increasingly important role in helping guide our specialty forward.”

Dr. Parihar is an assistant professor of radiology in the Division of Nuclear Medicine at the Mallinckrodt Institute of Radiology, Washington University School of Medicine (WashU) in St. Louis, where he is also pursuing a Master of Science in clinical investigation.

He earned his medical degree from Veer Chandra Singh Garhwali Government Medical Sciences and Research Institute in Uttarakhand, India. He then completed a nuclear medicine residency at the Postgraduate Institute of Medical Education and Research in Chandigarh, India, and later served as chief resident at the Barnes-Jewish Hospital at WashU, where he also completed a postdoctoral research fellowship.

Dr. Parihar is actively engaged in radiologic publishing and peer review. He served as an editorial board member for several journals and previously held roles as deputy editor and associate editor on the Radiology Trainee Editorial Board. He currently serves as an associate editor of Radiology and was recognized with the Radiology Editor’s Recognition Award with distinction (2024) and special distinction (2023 and 2025).

“Dr. Parihar has distinguished himself through his accomplishments in research, education, peer review and editorial service, as well as his dedication to advancing nuclear medicine and molecular imaging,” said Christine Cooky Menias, MD, editor of RadioGraphics. “Through the 2026 Olmsted Editorial Fellowship, he will gain firsthand experience with the editorial decision-making process and educational mission of radiology publishing, further strengthening his contributions to radiology education, research and scientific communication.”

Dr. Parihar serves as co-chair of the committee on quality and evidence for the Society of Nuclear Medicine and Molecular Imaging and as an at-large member of the board of directors for the American College of Nuclear Medicine. His research focuses on the use of functional imaging to improve disease characterization and patient outcomes, as well as the identification of novel theranostic targets in radiotheranostics. He has authored 83 manuscripts, eight book chapters and received over 1,200 citations.

The recipient of several honors, Dr. Parihar received the RSNA Honored Educator Award and the RSNA Trainee Research Prize in 2023, followed by the RSNA Roentgen Resident/Fellow Research Award in 2024.

“I deeply value and appreciate the roles of scientific journals that ensure important research gets communicated clearly, rigorously and to the right audiences,” Dr. Parihar said. “This fellowship is my opportunity to get an in-depth and firsthand understanding of the full editorial process. Equally important to me is the opportunity to build relationships with the editors and editorial staff, whose judgment and experience I hope to learn from directly.”

Dr. Ko is a consultant radiologist at the Peter MacCallum Cancer Centre in Melbourne, Australia, and an associate professor at the University of Melbourne. She received her medical degree from the University of Heidelberg in Germany, and completed her radiology residency at the University Hospital Heidelberg and the German Cancer Research Center. She subsequently completed several fellowships, including a pediatric radiology fellowship at the University Hospital Heidelberg, a clinical research fellowship at the Hospital for Sick Children in Toronto, and a breast imaging fellowship at BreastScreen Victoria, St. Vincent’s Hospital in Melbourne.

“Dr. Ko offers a distinct global viewpoint informed by her remarkable academic, scholarly and research experiences,” Dr. Abbara said. “Her participation in the fellowship will not only enrich the editorial process with a broader international perspective but also provide Dr. Ko with unique opportunities to engage in the collaborative environment that propels high-quality medical publishing.”

Dr. Ko is active in radiologic journalism. She is an assistant editor of the American Journal of Roentgenology and incoming section editor for Roentgen Ray Review. She also serves on the scientific editorial board of European Radiology and is currently a co-guest editor of a Journal of the American College of Radiology focus edition on human-centered AI. She was the recipient of the 2024 American Roentgen Ray Society (ARRS) Lee F. Rogers International Fellowship in Radiology Journalism.

In line with her translational interests in advanced oncological imaging and AI, Dr. Ko served as the course co-director for the 2026 ARRS Clinical AI in Radiology course. She is a member of the Royal Australian and New Zealand College of Radiologists AI committee and contributes to multiple working groups of the German Roentgen Society. She has authored more than 50 peer-reviewed articles and four book chapters.

“I’m deeply honored to be selected for the International Kressel Editorial Fellowship,” Dr. Ko said. “It is a privilege to learn from the editorial teams of the RSNA journal suite, which will deepen my understanding of the current editorial practices and evolving needs of our readership. As a clinician-researcher, I value high-quality publications and consider these the backbone to novel discoveries and insights.”

For More Information

Learn more about the RSNA Journals’ Editorial Fellowships.