Electron-beam tomography coronary artery calcium scanning: effect of image noise on calibration phantom computed tomography values
      The use of a calibration phantom (CP) is evolving as a valuable tool to adjust for image noise in coronary artery calcium (CAC) scanning. The purpose of this study was to compare phantom computed tomography (CT) values obtained at the base and apex of the heart, and to examine the association between phantom CT values and body mass index (BMI).
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