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European Radiology Experimental
Fig. 3 | European Radiology Experimental

Fig. 3

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

Fig. 3

Scatterplots of the effect of radiation dose and reconstruction on the perc15. The y-axis displays the perc15 with FBP at routine dose (reference), while the x-axis displays the perc15 at reduced dose with FBP (a) and with HIR (b) and MIR (c). Values below the diagonal represent a higher HU value compared to the reference, while values above the diagonal represent a lower HU value compared to the reference. FBP filtered back projection, HIR hybrid iterative reconstruction, MIR model-based iterative reconstruction

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