assessing risk for both coronary heart disease (CHD) and ischemic stroke associated with atherosclerosis.

I know this points to a commercial site but ask your doctor if this could be useful.
http://www.plactest.com/
Learn more about your risk for stroke and cardiovascular disease prevention. Now there is a simple blood test that can help uncover hidden risk for heart attack and stroke. Discover how the PLAC Test can help your physician assess your risk for and prevent these events.