VUMC Employee headshots on December 15, 2021. Photos by Donn Jones/Vanderbilt University Medical Center

Event Speaker

Lindsey Johnstone, MD, MS

Assistant Professor of Pediatric Radiology, Vice Chair of Informatics for the Department of Radiology

Vanderbilt University Medical Center

Dr. Johnstone serves as the Vice Chair of Informatics for the Department of Radiology at VUMC after completing subspecialty training in Pediatric Radiology and Nuclear Medicine. For the past several years, Dr. Johnstone has had the pleasure of serving as the Chair of the SMIT committee here at SIIM, a role out of which Dr. Johnstone transitions this year. In both positions, Dr. Johnstone focuses on improving experiences for those in Healthcare and Healthcare-adjacent fields, including patients, at the intersection between thoughtfully designed informatics solutions and wellness.

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 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…