Electron beam tomography imaging of coronary calcium: the effect of body mass index on radiologic noise.

Purpose: To measure selected parameters of radiologic noise in electron beam tomographic (EBT) images obtained for coronary artery calcium (CAC) screening, and to determine an association between the level of radiologic noise and patient body mass index (BMI).

Methods: Electron beam tomographic CAC studies were performed on 311 persons. The study sample was stratified into three groups according to subjects' BMI.