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SIR and SIR Foundation

Awarded during the Opening Plenary Session
Sunday, March 30, 10:30 a.m.–noon

SIR Annual Dr. Charles T. Dotter Lecture

The Dr. Charles T. Dotter Lecture honors one of the founding fathers of interventional radiology and selection by the SIR president is based on extraordinary contributions to the field, dedicated service to the society and distinguished career achievements in interventional radiology. The Dotter lecture is made possible with funding from SIR Foundation.


Lindsay Machan, MD, FSIR

The Gold Medal, the Society of Interventional Radiology's highest honor, is awarded not only for extraordinary service to SIR but to those who have dedicated their past and present talents to advancing the quality of medicine and patient care through the practice of interventional radiology.



Yasuaki Arai, MD, FSIR, FCIRSE received his medical degree at Jikei University School of Medicine. After 5 years of training at the Tokyo Medical Center, he worked in the department of diagnostic and interventional radiology at the Aichi Cancer Center. After 7 years at Aichi Cancer Center, he became chief of the department of diagnostic radiology at the National Cancer Center. He also served as the director of the hospital between 2012–2016, and as the president of Japanese Society of Interventional Radiology in 2014–2017.
He has developed new devices, such as an implantable port system, angio-CT system and a tip-deflecting microcatheter, and new techniques, such as the percutaneous catheter placement for hepatic arterial infusion chemotherapy, the transjugular transhepatic peritoneovenous shunt for intractable ascites, and the creation of extraanatomical bypass for occluded canal organ. He also organized the Japan Interventional Radiology in Oncology Study Group in 2003, which conducts over 30 clinical studies in the field of IR to pursue evidence.

He has published more than 200 scientific papers in major journals and is an associate editor of several leading journals, including the Journal of Vascular and Interventional Radiology. He has also served as a consultant of medical devices for Japanese government agencies.

He has given spirited lectures related to IR that have greatly influenced young interventional radiologists. He has received many awards and honors from international IR organizations, including the European Conference on Interventional Oncology’s Honorary Lecture in 2015, the Cardiovascular and Interventional Radiological Society of Europe’s (CIRSE’s) Distinguished Fellow in 2017, the Asia Pacific Society of Cardiovascular and Interventional Radiology’s Gold Medal in 2021, and CIRSE’s Josef Roesch Lecture in 2023. After retiring from the National Cancer Center in 2018, he has been actively working as a guest researcher at the National Cancer Center, a guest professor at Tokyo Jikei University School of Medicine and Saitama Medical University, a clinical professor of St. Marianna University of Medicine, and a chief doctor of Uonuma City Koide Hospital.



Michael Brunner, MD, FACR, FSIR has held leadership roles in medical practice, professional societies and biotechnology. He is a former: President of the Society of Interventional Radiology, Board Chair of the Society of Interventional Oncology (then World Congress of Interventional Oncology), and Chair of the AMA HOD Radiology Section Council. In addition to consulting for global startups in HealthTech, MedTech and Biotech, recently Dr. Brunner joined Delcath Systems as their Senior VP of Interventional Oncology.

Dr. Brunner’s clinical career has spanned private practice and academics within community, state and federal institutions. Academics included teaching at Rush Presbyterian St. Luke’s and at the University of Wisconsin Madison where he became a clinical professor in Interventional Radiology. Heading Radiology at Wm S. Middleton Memorial VA Hospital, he led a 60-person department and $5 million budget while overseeing a portfolio of federal and industry-funded research grants. He also held regional and national leadership roles within the VA. 

Subsequently, Dr. Brunner served as VP of Clinical Practice and Innovative Technologies at ProKidney. There he evaluated and trained study proceduralists, established innovative trial partnerships, and supported pharmacovigilance and early commercialization strategies.

Dr. Brunner received his medical degree from Stanford University. In addition to training in diagnostic and interventional radiology (Emory), he also trained in general surgery (Northwestern) and vascular surgery (Stanford).




Arina van Breda, MD, FSIR was born in the Netherlands and immigrated to the United States as a small child. She interned in internal medicine at George Washington University Hospital and then completed her residency in radiology, serving as chief resident in her final year. During her residency she developed an intense interest in the subspecialty that eventually became an interventional radiologist, working closely with Barry T. Katzen, MD, FSIR who was then working at Alexandria Hospital in Northern Virginia. Together, they published several journal articles establishing thrombolytic therapy as a useful tool for vascular procedures. Dr. Van Breda completed a 2-year fellowship in cardiovascular radiology at the Massachusetts General Hospital and then served an additional time as staff there and at Harvard University.

Dr. Katzen then recruited her back to Alexandria Hospital in 1983, and they jointly established the first dedicated full-time private practice of interventional radiology in the United States, as well as a leading fellowship training program for future IRs.

When Dr. Katzen left to move to Florida a few years later, Dr. Van Breda stayed to develop the practice and the fellowship program, accompanied by one of the graduates of that program, Kenneth S. Rholl, MD, FSIR. Subsequently joined by Keith M. Sterling, MD, FSIR, and others, they continued to serve the IR needs of the Northern Virginia area for more than 30 years. Together, they continued to help develop IR procedures, research and techniques, resulting in a nationally recognized IR program.

Dr. Van Breda lectured throughout the world, teaching IR to several subsequent generations of IR doctors. She served in many roles in both local and national interventional radiology organizations including as the first female president of the Society of Interventional Radiology. She has authored over 50 articles and book chapters in her field and co-authored with Eugene Strandness, MD, a vascular text for both IR and vascular surgeons.

She also earned a masters in medieval history at Catholic University while still in practice. She retired from the medicine in 2019 and since that time has devoted herself to volunteer work, registering voters throughout Northern Virginia and advocating for voting rights.

SIR Foundation Leader in Innovation Award

The Leader in Innovation Award recognizes and promotes innovation within interventional radiology, continuing IR’s historical innovative development that has revolutionized medicine over the last 40 years. The award acknowledges individuals who have conceptualized and implemented an idea that has had an advantageous impact on the practice of interventional radiology.

Jeanne M. LaBerge, MD, FSIR, John A. Kaufman, MD, FSIR, M. Victoria Marx, MD, FSIR, and Matthew A. Mauro, MD, FSIR, the 2025 Leaders in Innovation Award honorees' innovative work not only navigated resistance from stakeholders and secured acceptance by peer specialties and the American Board of Medical Specialties but also established IR as a primary specialty providing unique patient care. They played a pivotal role in crafting the IR residency curriculum, ensuring its immediate success as one of the most competitive specialties for medical students. This achievement has profoundly impacted IR’s past, present and future, solidifying its position as a desirable and essential specialty.

 

SIR Foundation Frederick S. Keller, MD, Philanthropy Award

Awarded during the SIR Foundation Award Ceremony
March 31 | 10 - 10:45 a.m.

The Frederick S. Keller, MD, Philanthropy Award honors an individual who, through exceptional generosity and through inspiring others to give, demonstrates outstanding commitment to SIR Foundation.



Michael Darcy, MD FSIR, is Professor of Radiology at the Mallinckrodt Institute at Washington University in St. Louis. He earned his medical degree at Ohio State University. After 3 years of surgery residency, he switched to radiology and IR training, all at the University of Minnesota. His first job was at the Medical University of South Carolina, but he moved to the Mallinckrodt Institute in 1989. He was Chief of Interventional Radiology for 18 years but stepped down in 2019 and retired from clinical practice in 2022. He was very active in the Society of Interventional Radiology, holding multiple positions, including Annual Meeting Chair, Foundation Chair, and President. His main areas of clinical and academic interest are portal hypertension and GI bleeding. He and his wife, Susan, have 3 daughters, 4 grandchildren, and 2 dogs. Woodworking and mountain hiking are his main passions outside of IR.