Researchers say they have developed technology that could predict heart attacks years before they happen. The researchers report using mathematical algorithms to examine computed tomography, or CT, images of a patient’s heart. A CT scan uses X-rays and a computer to make detailed pictures of bones, organs and other tissue inside the body. The new method was developed by researchers at the University of Oxford in England. A report on their study was published in the medical journal The Lancet. Also taking part in the study were teams from Friedrich-Alexander-University in Erlangen, Germany, and the Cleveland Clinic in the United States. Most heart attacks result from a build-up of fatty tissue inside arteries that carry blood from the heart to other areas of the body. Too much buildup can block this flow of blood and cause a heart attack.