Coronary artery calcification quantification (scoring) has been done with e
lectron beam CT (EBCT), but is now being done with spiral or helical CT. Ma
ny radiologists and cardiologists who do not have EBCT but do have access t
o spiral CT will now be able to do coronary artery calcification scoring, a
nd will now need to know the spiral CT appearance of the coronary artery an
atomy. This pictorial review will demonstrate the anatomy needed for corona
ry artery calcium scoring.