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Fig. 5 | EJNMMI Physics

Fig. 5

From: Reconstructed spatial resolution and contrast recovery with Bayesian penalized likelihood reconstruction (Q.Clear) for FDG-PET compared to time-of-flight (TOF) with point spread function (PSF)

Fig. 5

Contrasting CRpeak differences to SNR differences. Tradeoff between intermethod differences in peak contrast recovery (CRpeak) and signal-to-noise ratio (SNR) is displayed for different pairs of reconstruction algorithms as a combined analysis of all SBR. Colors of the triangles represent either higher (green), equal (grey) or lower (red) CRpeak or SNR for the algorithm in the left column, respectively. For example, if in a certain pair of algorithms, one provides higher CRpeak for the small spheres at similar SNR (i.e., green and grey triangle) or vice versa, this algorithm may be attested superior overall image quality. For CRpeak, higher or lower values are defined as > 10% difference for at least one of the smaller spheres (10, 13, and 17 mm). For SNR, statistically significant differences (Wilcoxon test) are determining

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