Effect of radiation dose and iterative reconstruction on lung lesion conspicuity at MDCT: Does one size fit all?  Marcos Paulo Ferreira Botelho, Rishi Agrawal, Fernanda Dias Gonzalez-Guindalini, Eric M. Hart, Suresh K. Patel, Hüseyin Gürkan Töre, Vahid Yaghmai  European Journal of Radiology  Volume 82, Issue 11, Pages e726-e733 (November 2013) DOI: 10.1016/j.ejrad.2013.07.011 Copyright © 2013 Elsevier Ireland Ltd Terms and Conditions

Fig. 1 Dots and lines graph showing the variation of noise across the different acquisition settings and reconstruction algorithms. European Journal of Radiology 2013 82, e726-e733DOI: (10.1016/j.ejrad.2013.07.011) Copyright © 2013 Elsevier Ireland Ltd Terms and Conditions

Figs. 2–7 Basic models of lung disease: 12-mm ground glass opacity (Fig. 2a and b), 5-mm bronchial polyp (Fig. 3a and b), 5-mm solid nodule (Fig. 4a and b), 5-mm ground glass nodule (Fig. 5a and b), emphysema (Fig. 6a and b), and tree-in-bud opacity (Fig. 7a and b). Each figure represents a lesion acquired with the minimum radiation parameters to satisfy a score of 3 (subtle lesion and not artifact) for conspicuity using FBP (a) and IR (b). European Journal of Radiology 2013 82, e726-e733DOI: (10.1016/j.ejrad.2013.07.011) Copyright © 2013 Elsevier Ireland Ltd Terms and Conditions

Figs. 2–7 Basic models of lung disease: 12-mm ground glass opacity (Fig. 2a and b), 5-mm bronchial polyp (Fig. 3a and b), 5-mm solid nodule (Fig. 4a and b), 5-mm ground glass nodule (Fig. 5a and b), emphysema (Fig. 6a and b), and tree-in-bud opacity (Fig. 7a and b). Each figure represents a lesion acquired with the minimum radiation parameters to satisfy a score of 3 (subtle lesion and not artifact) for conspicuity using FBP (a) and IR (b). European Journal of Radiology 2013 82, e726-e733DOI: (10.1016/j.ejrad.2013.07.011) Copyright © 2013 Elsevier Ireland Ltd Terms and Conditions

Fig. 8 Frequency histograms of conspicuity scores for each model of lesion. European Journal of Radiology 2013 82, e726-e733DOI: (10.1016/j.ejrad.2013.07.011) Copyright © 2013 Elsevier Ireland Ltd Terms and Conditions