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This includes a coronary artery calcium score (a low-dose CAT scan of the heart that looks for calcium deposits in the arteries, which is a sign of plaque buildup), a coronary CTA (an imaging test ...
A vulnerable plaque is a kind of atheromatous plaque – a collection of white blood cells (primarily macrophages) and lipids (including cholesterol) in the wall of an artery – that is particularly unstable and prone to produce sudden major problems such as a heart attack or stroke. [1]
Testing for plaque includes a carotid intima-media thickness test, (CIMT), which measures blood flow through the arteries and the thickness of the arteries. [ 2 ] [ 3 ] Physician Dr. Jeff Emery wrote that the test "allows us to identify if you are at future risk for a heart attack or stroke."
Heart failure is caused by chronic oxygen deprivation due to reduced blood flow, which weakens the heart over time. Arrhythmias are caused by inadequate blood supply to the heart that interferes with the heart's electric impulse. The coronary arteries can constrict as a response to various stimuli, mostly chemical. This is known as a coronary ...
"There are many risk factors for plaque buildup, including high cholesterol levels, high blood pressure, diabetes, smoking and family history of heart disease," says Dr. Kevin Rabii, MD, a ...
Cardiologists share the truth about when blood vessel plaque buildup becomes dangerous.
Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.
The animation shows plaque buildup or a coronary artery spasm can lead to a heart attack and how blocked blood flow in a coronary artery can lead to a heart attack. The most common cause of a myocardial infarction is the rupture of an atherosclerotic plaque on an artery supplying heart muscle.