Magnetic resonance imaging scans of the carotid arteries that deliver blood to the brain may provide a more reliable assessment of the risk of strokes or other cardiovascular events than ultrasound scans, a study by US researchers said on Tuesday. Multiple earlier studies have suggested that atherosclerosis in the carotid arteries mirrors the process in the coronary arteries and may help predict cardiovascular events. The link between wall thickness and cardiovascular events was stronger for MRI than for ultrasound scans. So a study showing superiority of MRI over ultrasound would be encouraging — although MRI assessment is far more expensive than ultrasound scans.”Three years ago, scientists at the US National Institutes of Health Clinical Centre had shown through a study involving 946 healthy persons that carotid artery MRI can predict cardiovascular events such as strokes or heart attacks. The detection of abnormal carotid artery wall thickness and presence of a lipid core and calcium in the artery in MRI was a significant predictor of cardiovascular events in the future.
Source: The Telegraph October 09, 2018 22:30 UTC