a picture of the plaque, whereas optical computed tomography uses light to define its structure. Thermography relies on differences in temperature to identify inflamed, vulnerable plaque, while spectroscopy defines its chemical composition, and palpography measures stress on the plaque's thin, fragile cap.

Studies are under way to determine which, if any, of these techniques can best detect and characterize vulnerable plaque. If the studies are positive, plaque imaging could help tens of millions of people with undiagnosed coronary artery disease.

"These techniques could have major societal implications," Dr. Stone said. "Everyone who is prone to cardiovascular disease--virtually all middle-aged and elderly men and postmenopausal women--could benefit from early detection and treatment."

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Contact: Kathy Boyd David
jdavid62@juno.com
717-422-1181
Society for Cardiovascular Angiography and Interventions
12-May-2006

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