Artery Wall News Today

>> reporter: it is often women? >> typically women. a big problem. >> reporter: as many as 100,000 women have suffered a heart attack that went undiagnosed. the study helps explain why. often when a man has a heart attack it is because of a severely blocked artery, angiogram, the common test can easily spot this blockage. but heart attacks can also occur particularly in women when plaque builds up along the artery wall but the artery itself remains open. that plaque can cause a deadly clot. but ...