Algorithm for radiation dose reduction with helical dual source coronary computed tomography angiography in clinical practice

Background Strategies to reduce the radiation dose of coronary computed tomography angiography (CCTA), while maintaining diagnostic image quality, are imperative for cardiac CT. Objective We aimed to reduce radiation dose during helical dual-source CCTA by combining lower tube voltage, shortest poss...

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Bibliographic Details
Published in:Journal of cardiovascular computed tomography 2008-09, Vol.2 (5), p.311-322
Main Authors: Gutstein, Ariel, MD, Dey, Damini, PhD, Cheng, Victor, MD, Wolak, Arik, MD, Gransar, Heidi, MS, Suzuki, Yasuyuki, MD, Friedman, John, MD, Thomson, Louise E.J., MBChB, Hayes, Sean, MD, Pimentel, Raymond, BSc, Paz, William, BSc, Slomka, Piotr, PhD, Le Meunier, Ludovic, PhD, Germano, Guido, PhD, Berman, Daniel S., MD
Format: Article
Language:English
Subjects:
Aged
Algorithm for radiation dose reduction
Algorithms
Body Burden
Cardiovascular
Coronary Angiography - methods
Coronary Artery Disease - diagnostic imaging
Coronary computed tomography angiography
Dual-source computed tomography
Female
Humans
Low-kilovoltage
Male
Middle Aged
Radiation Dosage
Radiation dose
Radiation Protection - methods
Relative Biological Effectiveness
Tomography, Spiral Computed - methods
Tube current modulation
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Summary:Background Strategies to reduce the radiation dose of coronary computed tomography angiography (CCTA), while maintaining diagnostic image quality, are imperative for cardiac CT. Objective We aimed to reduce radiation dose during helical dual-source CCTA by combining lower tube voltage, shortest possible full tube current (FTC) window, and minimal tube current outside the FTC window, and to develop a patient-based algorithm for applying these dose-reduction components. Methods We compared FTC at 70% of the cardiac cycle (FTC70) to a 45% to 75% window (FTC45-75) using both 100 and 120 kVp (N=118). FTC70 was used in patients with heart rates
ISSN:1934-5925
1876-861X
DOI:10.1016/j.jcct.2008.07.003