The study showed that about half of people who suffer a myocardial infarction were previously classified as low risk using commonly used risk calculators. Also, the newer PREVENT model incorrectly labels many patients as low risk, even though they will have a heart attack early. Most patients have symptoms up to 48 hours after a heart attack, meaning that current screening methods provide little time for effective intervention. The researchers therefore suggest that earlier detection using imaging methods could significantly improve heart attack prevention. This problem highlights the need for better diagnostic tools to identify patients at risk of heart attack who are overlooked by current methods. Thus, the study highlights the limitations of existing cardiovascular risk assessment models and the need for their improvement.