Computational fluid dynamics model utilizing proper orthogonal decomposition to assess coronary physiology and wall shear stress.

Summary: Doctors typically use angiograms (X-rays with dye) to see narrowed heart arteries, but these images don't always show how the blood is actually flowing or the stress it places on artery walls. This study tested a sophisticated computer math model called "Proper Orthogonal Decomposition" (POD). Think of it as a high-tech weather map for blood flow. By analyzing patients before and after they received a stent, this model successfully identified dangerous turbulence and wall stress that standard scans might miss. The results showed that this math-based approach can provide real-time, personalized insights, helping cardiologists make smarter decisions about stenting to ensure the best possible blood flow for the patient.