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The AOSR Gold Medal is the most prestigious and highest honor to be awarded by the AOSR to a person from Asia Oceania who has rendered outstanding and exceptional service or benefactions to the development, teaching, or practice of radiology. In particular, prolonged and exceptional service to the AOSR in a more or less continuous nature, including holding one or more of the high offices of the AOSR.
The AOSR Honorary Member is the highest accolade of the AOSR to a person outside of Asia Oceania who has rendered outstanding service or benefactions to the development, teaching, and practice of radiology.
Professor Noriyuki Tomiyama has been Chairman (the 7th) and Professor of Diagnostic and Interventional Radiology at Osaka University Graduate School of Medicine since 2010. Osaka University was also where he earned his MD and PhD. In 2022, he became Director of the Institute for Radiation Sciences, which consolidates radiation facilities to advance education, research, and safety in the field.
Prof Tomiyama became President of the Japan Radiological Society (JRS) in April 2024, after serving as a board member since 2014. He served as AOSR President from 2023 to 2025, following roles as Honorary Secretary (2018–2021) and President-Elect (2021–2023), and now sits on its Executive Council as Immediate Past President. In 2021, he presided over both the 80th JRS Annual Meeting and the 18th Asian Oceanian Congress of Radiology in Yokohama. He is also on the board of the Japanese Society of Thoracic Radiology.
He has been recognized with awards as Honorary Member of the Chinese Taipei Society of Radiology and the Korean Society of Radiology. He holds memberships in the Fleischner Society, the International Society for Strategic Studies in Radiology (IS3R), and the Radiological Society of North America. His expertise lies in chest imaging, particularly focusing on mediastinal tumors such as thymic tumors. His current research encompasses lung cancer, interstitial pneumonia, and computer-assisted diagnosis. He has published over 400 articles in peer-reviewed journals.
Emeritus Professor Kwan-Hoong Ng, PhD, is a distinguished Medical Physicist at the Department of Biomedical Imaging, Faculty of Medicine, Universiti Malaya, Malaysia, actively engaged in teaching, research, and mentorship. He has made significant contributions nationally, regionally, and internationally. Professor Ng established the first Master's program in Medical Physics at Universiti Malaya, accredited by the UK's Institute of Physics and Engineering in Medicine (IPEM) since 2002, making it a leading postgraduate center in the region. He has mentored numerous medical physicists and radiologists, served as visiting professor in several AOSR member societies, and advanced medical writing standards by organizing regional workshops.
Professor Ng formally proposed “AsiaSafe” to AOSR in 2017 and was instrumental in its establishment, cultivating a safety culture in radiation and beyond.
He represents AOSR in organizations such as ISRQSA, ICRP, and IAEA, and continues to mentor the AsiaSafe committee. He led the "MRI Safety in Asia Oceania: Call For Action" publication ; managed related outreach materials, and supervised AOSR’s MRI Safety webinars since December 2021. He co-authored the editorial" It is Time to Incorporate Artificial Intelligence in Radiology Residency Programs' and contributed to the AOSR position statement on artificial intelligence in radiology.
Professor Ng pioneered AI applications in medicine, culminating in a 1994 publication on expert systems in foetal distress management. He is extensively published and serves on the editorial boards of over 12 journals. He also contributed to the ICRP TG108 report, Part 2 (ICRP Publication 160, 2026).
He serves as an International Atomic Energy Agency expert and consultant, is the Founding President and current Emeritus President of the South East Asian Federation of Medical Physics and is the founder and current dean of the ASEAN College of Medical Physics. He is also Past President of the Asia-Oceania Federation of Organizations for Medical Physics.
In 2013, Professor Ng was recognized by IOMP as one of 50 medical physicists who made outstanding contributions to the field over the past 50 years. In 2018, he received the IOMP Marie Sklodowska Curie Award for his contributions to breast cancer imaging, radiation medicine, and education. He received the Malaysian Merdeka Award for Outstanding Scholastic Achievement in 2020, recognizing his pioneering work in advancing medical physics and radiation medicine in Malaysia.
Beyond his professional commitments, Professor Ng enjoys classical music, engages in charitable and humanitarian activities, and continues to supervise doctoral fellows and publish scholarly works. He also writes on topics of personal enrichment, including his reflections on Japanese culture. Soon his writing/musings will be available at www.kwanhoong.com.
Dr Rockall, a distinguished Professor of Radiology is currently serving as the Clinical Chair of Radiology at Imperial College London, Honorary Consultant at the Imperial College Healthcare NHS Trust. She has contributed much to medical education, clinical practice and diagnostic research throughout her illustrious career in radiology.
She has a vast bibliography of peer-reviewed publications and has special interest in genitourinary imaging and gynaecologic oncology. She has chaired working groups and co-authored the ESUR guidelines for the MRI staging and follow-up of gynaecological cancers and co-developed the O-RADS MRI score.
Dr Rockall is a champion of environmental sustainability in radiology and was the driver for the European Congress of Radiology 2025, which was themed Planet Radiology – a first in any radiological congress that had so many aspects of green radiology showcased. She is past president of the European Society of Radiology (ESR) having served in the ESR since 2013 in various subcommittees and roles. She was president of the ESR/ECR 2024-2025, and chair of the ESR Board of Directors 2025-2026. In the International Cancer Imaging Society (ICIS), she was president in 2015 and previously acted as Trustee. Previous appointments at the Royal College of Radiologists include Faculty Board member and Chair of the AI Working Group.
She is honorary member of several radiological societies - Société Française de Radiologie, German Radiology Society, Brazilian College of Radiology and the British Institute of Radiology.
She spearheaded the multisociety sustainability position statement in radiology in 2024-2025, ensuring involvement of global radiological societies including the AOSR. She is a familiar figure in multiple events organized by AOSR/AOCR and has also supported various Asian Oceanian societies in their activities such as HKCR, JRS and the RANZCR. The AOSR is proud to confer Honorary Membership to Dr Andrea Grace Rockall for her outstanding international achievements, collaboration, and leadership in radiology.
