Yes / 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 ¼ 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. / This research was funded by Philips Healthcare (the Netherlands)
| Identifer | oai:union.ndltd.org:BRADFORD/oai:bradscholars.brad.ac.uk:10454/16957 |
| Date | 02 May 2017 |
| Creators | Gislason-Lee, Amber J., Keeble, C., Egleston, D., Bexon, J., Kenyelics, S.M., Davies, A.G. |
| Source Sets | Bradford Scholars |
| Language | English |
| Detected Language | English |
| Type | Article, Published version |
| Rights | Copyright 2017 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited. |
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