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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: J Magn Reson Imaging. 2015 Mar 11;42(4):908–919. doi: 10.1002/jmri.24883

TABLE 5.

Human Subject Results

Mean ADC MR1
(×10−6 mm2/s) paired
t-test by site
Estimated Dmean
with GNC
Lower 95% CI Upper 95% CI P-value
  Site 1A −135.6 −155.6 −115.5 4.7*10−14
  Site 3 −2.3 −3.6 −0.9 0.0096
  Site 4 −130.5 −179.6 −81.4 0.0001
  Site 5 −91.4 −126.1 −56.6 0.0003
% change ADC with
GNC inter-site comparison
2 sample t-test
Difference in estimated
means (%)
Lower 95% CI Upper 95% CI P-value
  Site 1A to Site 3 11.08 −12.46 −9.71 5.1*10−16
  Site 1A to Site 4 −0.14 −3.84 4.12 0.9407
  Site 1A to Site 5 −4.04 1.24 6.84 0.0079
  Site 3 to Site 4 10.94 −14.78 −7.11 8.2*10−5
  Site 3 to Site 5 7.04 −9.63 −4.45 0.0002
  Site 4 to Site 5 −3.90 −0.44 8.25 0.0751
ΔADCET (% change)
paired t-test by site
Estimated Δmean
with GNC
Lower 95% CI Upper 95% CI P-value
  All patients −0.01 −0.58 0.56 0.94
  Site 1A 0.14 −0.78 1.07 0.75
  Site 3 −0.04 −0.16 0.07 0.35
  Site 4 −0.86 −2.03 0.30 0.13
  Site 5 0.54 −0.77 1.85 0.37