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Journal of Computer Assisted Tomography:
doi: 10.1097/RCT.0b013e3182355960
Case Report

Advanced Adaptive Axial-Sequential Prospectively Electrocardiogram-Triggered Dual-Source Coronary Computed Tomographic Angiography in a Patient With Atrial Fibrillation

Sidhu, Manavjot S. MD; Venkatesh, Vikram MD; Hoffmann, Udo MD, MPH; Ghoshhajra, Brian B. MD, MBA

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Abstract

Abstract: Atrial fibrillation is considered a relative contraindication to coronary computed tomographic angiography (CCTA) because image quality and radiation dose-saving measures largely depend on low and stable heart rates. Most published experiences with CCTA during atrial fibrillation have relied on retrospective gating to mitigate artifacts via electrocardiogram editing. However, a large number of patients arrive at the CT suite with irregular heart rates. We present a case in which we used a prospectively electrocardiogram-triggered axial-sequential scan mode with a novel arrhythmia protection algorithm to obtain motion-free, high-quality CCTA images at a low radiation dose.

© 2011 Lippincott Williams & Wilkins, Inc.

  

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