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Coronary calcium scoring with electrocardiographically pulsed multislice spiral computed tomography and reduced radiation exposure
      High reproducibility is a key requirement for coronary calcium scoring. Retrospectively electrocardiographically (ECG) gated, multislice (4-slice) spiral computed tomography (MSCT) promises high interexamination reproducibility for volumetric calcium scoring, with overlapping image increment, short scan times, and lower sensitivity to heart rate changes. However, the low spiral pitch for continuous volume coverage results in highly overlapping scanning with increased radiation exposure. We investigated the interexamination reproducibility of calcium scores with MSCT and possible exposure reduction with ECG-pulsed spiral acquisition.
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