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Updated: Mar 14, 2026

Author Spotlight: Advancing Cardiovascular Imaging - Introducing the Spatially Weighted Calcium Score for Early Disease Detection
Published on: September 22, 2023
Computation of Calcium Score With Dual-Energy Computed Tomography: A Phantom Study
Vidhya Kumar1, James K Min, Xin He
1From the Ohio State University Davis Heart and Lung Research Institute, Columbus, OH; †Department of Radiology, Weill Cornell Medical College, Dalio Institute of Cardiovascular Imaging, New York, NY; ‡Department of Epidemiology and Biostatistics, University of Maryland School of Public Health, College Park, MD; and §The Ohio State University Davis Heart and Lung Research Institute, Columbus, OH.
Abstract:
Dual-energy computed tomography (DECT) improves material and tissue characterization compared with single-energy CT; we sought to validate coronary calcium quantification in advancing cardiovascular DECT. In an anthropomorphic phantom, agreement between measurements was excellent, and Bland-Altman analysis demonstrated minimal bias. Compared with the known calcium mass for each phantom, calcium mass by DECT was highly accurate. Noncontrast DECT yields accurate calcium measures and warrants consideration in cardiac protocols for additional tissue characterizations.
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