Two ways to decide which heart blockages need treatment

When you have blockages in your heart arteries, doctors need to decide which ones to treat with stents. This trial compares two different ways of making that decision: one method looks at the anatomy (shape and size) of the blockages, while the other uses a special wire to measure blood flow. Both groups receive drug-eluting stents, which are coated stents that help prevent the artery from closing again.

Doctors don't always agree on which heart blockages need treatment. Some blockages look significant but don't actually restrict blood flow enough to cause problems, while others might look less severe but do affect blood flow. This trial is trying to figure out which decision method leads to better outcomes for patients.