Extended Data Fig. 5: The results of all other participants reliability test.
From: Assessing cerebral microvascular volumetric with high-resolution 4D cerebral blood volume MRI at 7 T
a, Reliability test results of all other young participants, including 3 ones with retest session (green frame). The red line and red shading represent the mean laminar profile of ∆VASO and its 95% confidence interval, respectively, calculated from random data. The black line shows the laminar profile of the ∆VASO calculated for each participants. b, Reliability test results of all elder participants. As we can see, S15 is an outlier that cannot be distinguished from variations caused by random noise. As a result, the VASO-related group analysis in this study excluded S15 from the final results. And compared with young participants, the ∆VASO of elder were generally significantly higher than chance-level, shown in the higher reliability index. c, Laminar tSNR profile. The distribution of tSNR and chance-level are exactly inversely proportional, which illustrates the accuracy of our chance-level calculation. n = 23 (included 11 young and 12 older participants) independent biological replicates, representing individual human participants, each measured once. Error bars indicate SEM across participants.
