--involves three dimensional CT imaging of the coronary arteries for calcium deposits in order to image early disease; it was developed as a less invasive way of detecting this than the usual stress testing or treadmill testing (as I've had the latter done--with good results--I would be interested in something that isn't as tiring, injecting, and time intensive).

See:

http://www.medicinenet.com/script/ma...ticlekey=10296

http://www.medscape.com/viewarticle/460080_3

Not sure what the numbers, mean, though--there are no units given (or indications of a percentage)?