Dr Shailesh Singh on Instagram: "Your doctor mentioned a heart test—but there's more than one option When chest pain brings you to the doctor, you might hear about catheter angiography. Most people don't realize there's another choice. Traditional angiography threads a catheter through your artery, injects dye into your heart vessels, and captures X-ray images. It's necessary for heart attacks in progress or severe symptoms. CT coronary angiography uses a regular CT scanner with IV contrast—no c