MRI can discern features
of vulnerable plaque, such as a lipid core with a thin fibrous cap.
The impact of the fatty meal on red blood cells and MPO were new findings, and the authors indicated that «meals enriched in fat may promote destabilization
of vulnerable plaques leading to acute myocardial infarction,» the medical term for a heart attack.
Not exact matches
Yet these materials, like tooth enamel, can be
vulnerable to the growth
of plaque, the sticky biofilm that leads to tooth decay.
«We studied asymptomatic individuals with a low risk
of cardiovascular events at baseline and used noninvasive imaging to predict the risk
of an event downstream,» said David A. Bluemke, M.D, Ph.D., from the National Institutes
of Health Clinical Center in Bethesda, Md. «This is the first population - based prospective study to determine if
vulnerable plaque features by MRI add to the risk
of a cardiovascular event beyond the traditional risk factors.»
Even if infections are a primary cause
of the
plaques, it appears that only some
of those who are infected with herpes, chlamydia, spirochetes or yeast may be
vulnerable.
This is most commonly due to occlusion (blockage)
of a coronary artery following the rupture
of a
vulnerable atherosclerotic
plaque, which is an unstable collection
of lipids (cholesterol and fatty acids) and white blood cells (especially macrophages) in the wall
of an artery.
Some types
of plaque are deemed «
vulnerable,» meaning that they are more likely to detach from the artery wall and cause heart attack or stroke.
There are two ultrasound techniques that can help identify
vulnerable plaques, but both depend on the use
of contrast agents called «microbubbles.»
«Existing state -
of - the - art technologies are capable
of determining if
plaque is present in the arteries, but can't tell whether it's
vulnerable.
See, the nerve roots, which are most commonly associated with sciatic pain, are supplied by some
of the arteries most
vulnerable to atherosclerotic
plaque formation.