Geometric instability of ultrafast computed tomographic coronary calcium scores due to gray-scale nonuniformities

Herrick Wun; Robert Detrano; Xingping Kang; Paiboon Mahaisavariya; Sharon Nickerson; Sabee Y. Molloi

doi:10.1117/12.174423

1 May 1994 Geometric instability of ultrafast computed tomographic coronary calcium scores due to gray-scale nonuniformities

Herrick Wun, Robert Detrano, Xingping Kang, Paiboon Mahaisavariya, Sharon Nickerson, Sabee Y. Molloi

Author Affiliations +

Proceedings Volume 2168, Medical Imaging 1994: Physiology and Function from Multidimensional Images; (1994) https://doi.org/10.1117/12.174423
Event: Medical Imaging 1994, 1994, Newport Beach, CA, United States

Abstract

Using ultrafast computed tomography (CT) for calcium quantification offers a potentially non- invasive way to evaluate the presence and severity of coronary artery disease. The currently applied index of ultrafast CT coronary calcium amount is the coronary calcium score of Agatston et al., but this score has not been thoroughly evaluated as to its accuracy and stability. In the present research we estimate the grey scale non-uniformity within the vascular blood pools in the anterior-posterior axis, and in the cephalad-caudad axis. We then estimate the effects of these non-uniformities on coronary calcium scores.

Citation Download Citation

Herrick Wun, Robert Detrano, Xingping Kang, Paiboon Mahaisavariya, Sharon Nickerson, and Sabee Y. Molloi "Geometric instability of ultrafast computed tomographic coronary calcium scores due to gray-scale nonuniformities", Proc. SPIE 2168, Medical Imaging 1994: Physiology and Function from Multidimensional Images, (1 May 1994); https://doi.org/10.1117/12.174423

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