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World J Radiol. Nov 28, 2013; 5(11): 421-429
Published online Nov 28, 2013. doi: 10.4329/wjr.v5.i11.421
Published online Nov 28, 2013. doi: 10.4329/wjr.v5.i11.421
CT dose and image quality in the last three scanner generations
Andreas Christe, Johannes Heverhagen, Lukas Ebner, Department of Radiology, University Hospital of Bern, Inselspital, 3010 Bern, Switzerland
Christoph Ozdoba, Christian Weisstanner, Department of Neuroradiology, University Hospital of Bern, Inselspital, 3010 Bern, Switzerland
Stefan Ulzheimer, Siemens AG Healthcare, An der Lände 1, 91301 Forchheim, Germany
Author contributions: Ebner L, Christe A performed the majority of the experiments; Ozdoba C, Weisstanner C coordinated the experiments with the Somatom Definition Edge Scanner and were also involved in editing the manuscript; Ulzheimer S, Heverhagen J performed the physical, mathematical and technical review and edited the manuscript; Christe A, Ebner L designed the study and wrote the manuscript.
Correspondence to: Andreas Christe, MD, Departement of Radiology, University Hospital of Bern, Inselspital, Freiburgstrasse 10, 3010 Bern, Switzerland. andreas.christe@insel.ch
Telephone: +41-31-6321965 Fax: +41-31-6324874
Received: July 17, 2013
Revised: September 24, 2013
Accepted: November 2, 2013
Published online: November 28, 2013
Processing time: 133 Days and 19.6 Hours
Revised: September 24, 2013
Accepted: November 2, 2013
Published online: November 28, 2013
Processing time: 133 Days and 19.6 Hours
Core Tip
Core tip: A computed tomography dose reduction between 30% and 80% can be expected when using iterative reconstruction instead of filtered back projection. The benefit of dose reduction is larger at lower dose levels. An additional dose reduction between 27% and 70% can be obtained by applying the new Stellar detector.