Atherosclerosis: Clinical Perspectives Through Imaging Carotid Intima-Media Thickness
Published 2013 · Medicine
Carotid intima media thickness (CIMT) testing uses ultrasound imaging to define the arterial wall thickness of the carotid artery. The study is performed within one of several carotid artery segments (common, bulb or internal carotid artery) and is highly accurate and reproducible. Technical standards for the performance of CIMT have been published and include the use of high frequency ultrasound probes (preferably operating at 10 mHz or higher). Semi-automated quantification methods include using border detection software. The finding of increased CIMT has been shown among middle-aged and elderly individuals to be associated with CHD outcomes over and above standard cardiovascular risk factors. Focal arterial plaque is a particularly high risk finding. CIMT imaging is considered appropriate in a number of clinical scenarios, including individuals at intermediate risk for CHD in their initial risk assessment.