Comprehensive assessment of patient image quality and radiation dose in latest generation cardiac x-ray equipment for percutaneous coronary interventions

Amber J. Gislason-Lee; Claire Keeble; Daniel Egleston; Josephine Bexon; Stephen M. Kengyelics; Andrew G. Davies

doi:10.1117/1.JMI.4.2.025501

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2 May 2017 Comprehensive assessment of patient image quality and radiation dose in latest generation cardiac x-ray equipment for percutaneous coronary interventions

Amber J. Gislason-Lee, Claire Keeble, Daniel Egleston, Josephine Bexon, Stephen M. Kengyelics, Andrew G. Davies

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J. of Medical Imaging, 4(2), 025501 (2017). https://doi.org/10.1117/1.JMI.4.2.025501

Abstract

This study aimed to determine whether a reduction in radiation dose was found for percutaneous coronary interventional (PCI) patients using a cardiac interventional x-ray system with state-of-the-art image enhancement and x-ray optimization, compared to the current generation x-ray system, and to determine the corresponding impact on clinical image quality. Patient procedure dose area product (DAP) and fluoroscopy duration of 131 PCI patient cases from each x-ray system were compared using a Wilcoxon test on median values. Significant reductions in patient dose (p≪0.001) were found for the new system with no significant change in fluoroscopy duration (p=0.2); procedure DAP reduced by 64%, fluoroscopy DAP by 51%, and “cine” acquisition DAP by 76%. The image quality of 15 patient angiograms from each x-ray system (30 total) was scored by 75 clinical professionals on a continuous scale for the ability to determine the presence and severity of stenotic lesions; image quality scores were analyzed using a two-sample t-test. Image quality was reduced by 9% (p≪0.01) for the new x-ray system. This demonstrates a substantial reduction in patient dose, from acquisition more than fluoroscopy imaging, with slightly reduced image quality, for the new x-ray system compared to the current generation system.

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Amber J. Gislason-Lee, Claire Keeble, Daniel Egleston, Josephine Bexon, Stephen M. Kengyelics, and Andrew G. Davies "Comprehensive assessment of patient image quality and radiation dose in latest generation cardiac x-ray equipment for percutaneous coronary interventions," Journal of Medical Imaging 4(2), 025501 (2 May 2017). https://doi.org/10.1117/1.JMI.4.2.025501

Received: 2 August 2016; Accepted: 14 April 2017; Published: 2 May 2017

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