Mount Sinai investigators found that current cardiac risk tools routinely miss people with dangerous but silent plaque buildup, even just days before a heart attack. Credit: Shutterstock A new study led by Mount Sinai researchers reports that commonly used cardiac screening methods fail to identify almost half of the people who are actually at risk of having a heart attack. The findings were released on November 21 in a brief report in the Journal of the American College of Cardiology: Advances