Testing heart stress imaging to diagnose exercise-related shortness of breath

This research study investigates whether performing heart imaging tests while you exercise — combined with a special heart catheterization procedure — can more accurately diagnose the cause of your shortness of breath during physical activity. Researchers want to understand how your heart responds to stress and whether this combined approach can identify conditions like heart failure or blood clots in the lungs that are difficult to spot when you're at rest.

Many people experience shortness of breath only when they exercise, but standard heart tests performed while resting don't show any problems. This trial aims to fill that gap by testing whether combining exercise stress imaging with invasive heart monitoring can catch heart and lung conditions earlier and help doctors choose better treatments.