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European Radiology Experimental
Fig. 2 | European Radiology Experimental

Fig. 2

From: Emphysema quantification using chest CT: influence of radiation dose reduction and reconstruction technique

Fig. 2

Scatterplots of the effect of radiation dose and reconstruction on the percentage emphysema. The y-axis displays the percentage emphysema with FBP at routine dose (reference), while the x-axis displays the percentage emphysema at reduced dose with FPB (a) and with HIR (b) and MIR (c). Values below the diagonal represent an overestimation of the percentage of emphysema as compared to FBP and routine dose, while values above the diagonal represent an underestimation. FBP filtered back projection, HIR hybrid iterative reconstruction, MIR model-based iterative reconstruction

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