Experienced medical imaging professional speaking at the SIIM Annual Meeting, showcasing innovations in AI and imaging technology for radiology and healthcare.

Event Speaker

William Boonn, MD

Chief Medical Office

HOPPR

William Boonn, MD, serves as Chief Medical Officer at HOPPR and practices cardiovascular radiology at the University of Pennsylvania, where he completed his residency and fellowship. He completed his fellowship in Imaging Informatics from the University of Maryland. A SIIM member since 2003, Dr. Boonn received an early SIIM grant in 2005 and served on the SIIM Board of Directors from 2010 to 2015. He previously served as CMO of Rad AI and was co-founder and CEO of Equium Intelligence (acquired by Rad AI) and Montage Healthcare Solutions (acquired by Nuance in 2016, where he became Chief Medical Informatics Officer).

Sessions

You Can’t Handle the Truth! Ground Truth, Labeling, and the Battle of the Benchmarks

Presented by Lindsey Johnstone, MD, MS, Julie Bauml, MD, William Boonn, MD in Radiology Jun 11, 2026 | 10:00 AM.

Artificial intelligence in radiology depends on the idea of “ground truth,” yet in medical imaging, truth is rarely absolute. Radiology reports, pathology results, patient outcomes, and hybrid approaches each reflect different—and often imperfect—perspectives. Attendees will gain a clearer understanding of why these inconsistencies matter and how unclear or misaligned definitions of truth can undermine the clinical relevance, validation, and…