TRAC Program
To be efficient, immunotherapy and other tumor-directed interventions require consistent tracking of tumor measurements across time. Radiologists need repeatable baseline and follow-up measurements for the same target lesions, documentation of non-target disease, and a standardized way to compare change across multiple examinations. Without a consistent longitudinal measurement workflow, response assessment becomes more variable and time-consuming.
Stanford radiologists identified that these measurements were not being tracked or managed in a standardized way across timepoints and requested a formal program to address the gap. They approached the Stanford 3DQ Lab because the lab was already providing standardized measurements and consistent imaging outputs in other clinical workflows, and they asked the lab to evaluate software options that could support longitudinal tracking and reporting.
Figure A. TRAC report lesion snapshot gallery showing baseline and follow-up images for target and non-target lesions with outlined segmentations and recorded measurements.
Figure B. TRAC report table summarizing baseline and follow-up measurements for target lesions, non-target findings, and overall response assessment using the selected response criteria.
Figure C. TRAC lesion overview chart displaying longitudinal change in lesion size across multiple follow-up examinations, with stacked contributions from individual lesions over time.