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World J Cardiol. Dec 26, 2013; 5(12): 465-472
Published online Dec 26, 2013. doi: 10.4330/wjc.v5.i12.465
Coronary CT angiography: Dose reduction strategies
Akmal Sabarudin, Zhonghua Sun
Akmal Sabarudin, Diagnostic Imaging and Radiotherapy Program, School of Diagnostic and Applied Health Sciences, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur 50300, Malaysia
Zhonghua Sun, Discipline of Medical Imaging, Department of Imaging and Applied Physics, Curtin University, Perth 6845, Western Australia, Australia
Author contributions: Both authors wrote the paper.
Correspondence to: Zhonghua Sun, PhD, Associate Professor, Discipline of Medical Imaging, Department of Imaging and Applied Physics, Curtin University, GPO Box U1987, Perth 6845, Western Australia, Australia. z.sun@curtin.edu.au
Telephone: +61-8-9266 7509 Fax: +61-8-9266 2377
Received: July 3, 2013
Revised: July 24, 2013
Accepted: August 20, 2013
Published online: December 26, 2013
Processing time: 177 Days and 17.8 Hours
Abstract

With the introduction of 64- and post-64 slice computed tomography (CT) technology, coronary CT angiography has been increasingly used as a less invasive modality for the diagnosis of coronary artery disease. Despite its high diagnostic value and promising results compared to invasive coronary angiography, coronary CT angiography is associated with high radiation dose, leading to potential risk of radiation-induced cancer. A variety of dose-reduction strategies have been reported recently to reduce radiation dose with effective outcomes having been achieved. This article presents an overview of the various methods currently used for radiation dose reduction.

Keywords: Coronary artery disease; Coronary computed tomography angiography; Multislice computed tomography; Radiation dose; Dose reduction

Core tip: Various dose-reduction strategies of coronary computed tomography angiography have been discussed in this article with the aim of providing readers with a comprehensive summary of the effectiveness of these radiation reduction approaches.