An investigation of flat panel equipment variables on image quality with a dedicated cardiac phantom

Physics in Medicine and Biology
O DragusinW Desmet

Abstract

Image quality (IQ) evaluation plays a key role in the process of optimization of new x-ray systems. Ideally, this process should be supported by real clinical images, but ethical issues and differences in anatomy and pathology of patients make it impossible. Phantom studies might overcome these issues. This paper presents the IQ evaluation of 30 cineangiographic films acquired with a cardiac flat panel system. The phantom used simulates the anatomy of the heart and allows the circulation of contrast agent boluses through coronary arteries. Variables investigated with influence on IQ and radiation dose are: tube potential, detector dose, added Copper filters, dynamic density optimization (DDO) and viewing angle. The IQ evaluation consisted of scoring 4 simulated calcified lesions located on different coronary artery segments in terms of degree of visualization. Eight cardiologists rated the lesions using a five-point scale ((1) lesion not visible to (5) very good visibility). Radiation doses associated to the angiograms are expressed in terms of incident air kerma (IAK) and effective dose that has been calculated with PCXMX software (STUK, Finland) from the exposure settings assuming a standard sized patient of 70 Kg. Mean IQ sc...Continue Reading

References

Jul 1, 1995·Medical Physics·C E MetzK J Myers
Jan 9, 2001·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·S BalterM H Wondrow
Aug 8, 2001·Radiation Protection Dosimetry·E GuibeladeD J Rawlings
May 21, 2004·The British Journal of Radiology·D G W OnnaschH-H Kramer
Oct 7, 2004·Journal of the American College of Cardiology·Eberhard KuonMichael Wucherer
Apr 29, 2005·Radiology·Martin UffmannCornelia Schaefer-Prokop
Feb 8, 2006·Radiation Protection Dosimetry·G BernardiE Vano
Feb 8, 2006·Radiation Protection Dosimetry·C WalshJ Malone
Feb 9, 2006·Radiation Protection Dosimetry·A Schreiner-Karoussou
Jul 25, 2006·Pediatric Radiology·Philipp BernhardtFrank Deinzer
Jul 25, 2006·Pediatric Radiology·J Anthony Seibert

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Citations

Feb 9, 2010·Radiation Protection Dosimetry·O DragusinJ Beissel
Nov 26, 2010·Medical Physics·Amber J GislasonArnold R Cowen
Mar 22, 2012·EuroIntervention : Journal of EuroPCR in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology·Chrysafios GirasisPatrick W Serruys
Mar 11, 2015·Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions·Liesbeth ElootKlaus Bacher
May 21, 2020·Japanese Journal of Radiology·Hidekatsu TateishiKenichi Yokoyama

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