1Agatston AS, Janowitz WR, Hildner FJ,et al.Quantification of coronary artery calcium using ultrafast computed tomography[J].J Am Coll Cardiol,1990,15(g):827-832.
2Callister TQ, Cooil B, Raya SP, et al. Coronary artery disease:Improved reproducibility of calcium scoring with an electron-beam CT volumetric method[J]. Radiology,1998,208(3):807-814.
3Hong C, Becker C, Schoepf U J, et al. Absolute quantification of coronary artery calcium in non-enhanced and contrast-enhanced multidetector-row CT studies[J]. Radiology,2002,223(2):474-480.
