Portable ultrasound reveals early signs of heart disease
The innermost layer of an artery's wall (the intima) provides a smooth surface for blood to flow through. The middle layer (the media) contains muscle and elastic fibers that let the vessel expand and contract with each heartbeat. The thicker the intima and the media, the more likely the artery is choked with cholesterol-filled plaque. Using ultrasound, a doctor can easily measure the intima-media thickness in the arteries of the neck and upper leg.
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