Triphasic Contrast Bolus for Whole-Chest ECG-Gated 64-MDCT of Patients With Nonspecific Chest Pain: Evaluation of Arterial Enhancement and Streak Artifact

Abstract

In this series, a triphasic contrast bolus for ECG-gated whole-chest CT consistently achieved arterial attenuation above a diagnostic threshold in the pulmonary arteries, coronary arteries, and aorta. Right-heart attenuation was simultaneously reduced, which is important for decreasing the prevalence and severity of streak artifacts.