Fig. 3From: Enhancing magnetic resonance imaging-driven Alzheimer’s disease classification performance using generative adversarial learningImage quality analysis. Metrics such as SNR as well as no-reference algorithms including BRISQUE and NIQE were used to evaluate the quality of the generated images (3 T*) and compare them with the quality of the original scans (1.5 T and 3 T). The metrics were computed independently on the MRI scans from each study cohort (ADNI-test (a–c), NACC (d–f), AIBL (g–i)). Lower value of the metrics indicates improved quality. The symbol “*” indicates p < 0.001 and “**” indicates p < 0.0001Back to article page