Radiation dose reduction for coronary artery calcium scoring at 320-detector CT with adaptive iterative dose reduction 3D

The International Journal of Cardiovascular Imaging
Fuminari TatsugamiKazuo Awai

Abstract

To assess the possibility of reducing the radiation dose for coronary artery calcium (CAC) scoring by using adaptive iterative dose reduction 3D (AIDR 3D) on a 320-detector CT scanner. Fifty-four patients underwent routine- and low-dose CT for CAC scoring. Low-dose CT was performed at one-third of the tube current used for routine-dose CT. Routine-dose CT was reconstructed with filtered back projection (FBP) and low-dose CT was reconstructed with AIDR 3D. We compared the calculated Agatston-, volume-, and mass scores of these images. The overall percentage difference in the Agatston-, volume-, and mass scores between routine- and low-dose CT studies was 15.9, 11.6, and 12.6%, respectively. There were no significant differences in the routine- and low-dose CT studies irrespective of the scoring algorithms applied. The CAC measurements of both imaging modalities were highly correlated with respect to the Agatston- (r = 0.996), volume- (r = 0.996), and mass score (r = 0.997; p < 0.001, all); the Bland-Altman limits of agreement scores were -37.4 to 51.4, -31.2 to 36.4 and -30.3 to 40.9%, respectively, suggesting that AIDR 3D was a good alternative for FBP. The mean effective radiation dose for routine- and low-dose CT was 2.2 and ...Continue Reading

References

Mar 15, 1990·Journal of the American College of Cardiology·A S AgatstonR Detrano
May 1, 1995·The American Journal of Cardiology·S DevriesS Rich
Jan 12, 2001·The American Journal of Cardiology·S AchenbachW Moshage
Nov 15, 2002·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Michael F McNitt-Gray
Jul 24, 2003·AJR. American Journal of Roentgenology·A H MahnkenR W Günther
Aug 1, 2007·Physics in Medicine and Biology·Y J LiuZ Y Wu
Feb 5, 2009·JAMA : the Journal of the American Medical Association·Jörg HausleiterStephan Achenbach
Jul 2, 2009·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Jun HoriguchiKatsuhide Ito
Aug 22, 2009·AJR. American Journal of Roentgenology·Amy K HaraWilliam Pavlicek
Jun 19, 2010·European Radiology·Tessa S S GendersM G Myriam Hunink
Jan 17, 2013·Journal of Computer Assisted Tomography·Hiroshi JuriYoshifumi Narumi
Feb 14, 2013·The International Journal of Cardiovascular Imaging·Marcus Y ChenFrank J Rybicki
Sep 24, 2013·European Radiology·Akira KurataKoen Nieman

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Citations

Aug 20, 2015·The International Journal of Cardiovascular Imaging·Bálint SzilveszterPál Maurovich-Horvat
Jun 29, 2016·Dento Maxillo Facial Radiology·Lars-Arne SchaafsStefan Markus Niehues
May 8, 2018·Expert Review of Cardiovascular Therapy·Christian TescheChristian Thilo
Mar 8, 2020·Journal of Nuclear Medicine Technology·Paul MadajMatthew J Budoff
Aug 11, 2021·Journal of Applied Clinical Medical Physics·Yukako IzoeKoichi Chida

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