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Table 2 Repeatability and Reproducibility of 23Na concentrations

From: Repeatability and reproducibility of cerebral 23Na imaging in healthy subjects

TSC Repeatability Reproducibility
Region V1 V2 p-value V1 V3 p-value
GM 51.0 ± 6.3 51.5 ± 6.7 0.77 51.0 ± 6.3 52.0 ± 7.2 0.72
WM 40.5 ± 4.8 41.2 ± 4.4 0.30 40.5 ± 4.8 41.0 ± 6.3 0.83
HCN 59.9 ± 9.9 61.1 ± 9.7 0.54 59.9 ± 9.9 61.7 ± 10.9 0.41
Cerebellum 40.5 ± 7.7 40.6 ± 5.0 0.44 40.5 ± 7.7 39.2 ± 5.7 0.39
Brainstem 41.1 ± 10.2 39.4 ± 6.8 0.80 41.1 ± 10.2 40.0 ± 7.9 0.93
CSF 102.1 ± 21.6 103.8 ± 20.9 0.93 102.1 ± 21.6 103.6 ± 24.5 0.98
Mean 52.7 ± 20.7 53.2 ± 20.8 0.68 52.7 ± 20.7 53.1 ± 21.6 1.0
  1. Note: TSC = total sodium concentration; V1/V2 = repeated exams on the same day; V1/V3 = exam on different dates