LOW-DOSE COMPUTED TOMOGRAPHY OF THE PARANASAL SINUSES: PERFORMANCE OF TWO DIFFERENT ITERATIVE RECONSTRUCTION ALGORITHMS

Radiation Protection Dosimetry
Lars-Arne SchaafsStefan Markus Niehues

Abstract

To evaluate the performance of two iterative reconstruction algorithms in low-dose paranasal sinus computed tomography (CT). Sinus CT scans were reconstructed using Adaptive Iterative Dose Reduction 3D (AIDR 3D, n = 36 patients) or Sinogram Affirmed Iterative Reconstruction (SAFIRE, n = 32 patients). Reconstructed images were evaluated regarding subjective image quality, depiction of anatomic landmarks and noise (HU). Dose-length product (DLP), calculated effective dose (ED) and CT dose index (CTDIvol) were documented for each scan. Images were not significantly different in subjective image quality (p = 0.09) and conspicuity of anatomic landmarks (p = 0.28). Noise was significantly lower in images reconstructed with AIDR 3D (p = 0.012). DLP, ED and CTDIvol were significantly lower in the SAFIRE datasets (each p < 0.001). The results indicate that iterative reconstruction, independent of the manufacturer, enables for imaging the paranasal sinuses with an ED below 0.1 mSv while ensuring diagnostic image quality.

References

Dec 24, 1997·The British Journal of Radiology·S E KearneyC J Garvey
Aug 10, 2000·Der Radiologe·T J VoglJ Balzer
Oct 3, 2000·RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin·F DammannC D Claussen
Sep 23, 2003·AJR. American Journal of Roentgenology·Denis TackPierre Alain Gevenois
Sep 20, 2005·European Journal of Radiology·A HojrehF Kainberger
Dec 6, 2005·Otolaryngologic Clinics of North America·Barton F Branstetter, Jane L Weissman
May 23, 2007·Radiology·Matthias H BremU Joseph Schoepf
Oct 28, 2008·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Girish M FatterpekarPeter M Som
Dec 24, 2009·AJR. American Journal of Roentgenology·Alvin C SilvaWilliam Pavlicek
Dec 12, 2012·AJNR. American Journal of Neuroradiology·B SchulzJ M Kerl
Jul 10, 2013·Journal of Applied Clinical Medical Physics·Caterina GhettiLivia Ruffini
Jul 24, 2015·Radiology·Lucas L GeyerCarlo N De Cecco
Jun 29, 2016·Dento Maxillo Facial Radiology·Lars-Arne SchaafsStefan Markus Niehues

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Citations

Jan 15, 2021·Biomedical Physics & Engineering Express·Mohammad Davoudi, Shaghayegh Lotfian Ahangarkolaei

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