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. Author manuscript; available in PMC: 2010 Aug 1.
Published in final edited form as: Clin Cancer Res. 2009 Jul 21;15(15):4993–5001. doi: 10.1158/1078-0432.CCR-08-2222

Table 4.

Summary analysis showing the relationship between the MRI parameters measured to pH parameters. pHi = interstitial pH and pHe = extracellular pH. Only the difference between pHe pre and post therapy was found correlate with post washout values. Bold and shaded cells were significant and bolded image parameters were the ones significant in predicting outcome as shown in Table 1

pHi-Pre pHi@24hr - pHi-Pre pHe-Pre pHe@24hr - pHe-Pre

Spearman p -value Spearman p -value Spearman p -value Spearman p -value


Pre AUC60 0.034 0.868 0.169 0.563 0.023 0.912 0.02 0.93

AUC90 0.046 0.818 0.143 0.626 0.034 0.871 0.01 0.966

AUC t-max −0.163 0.417 0.037 0.899 0.099 0.63 0.098 0.665

Washin 0.006 0.976 0.174 0.553 0.032 0.877 0.132 0.56

Washout 0.027 0.894 −0.486 0.078 0.149 0.467 −0.014 0.95


Post AUC 60 −0.118 0.676 −0.036 0.916 0.256 0.358 0.086 0.761

AUC 90 −0.125 0.657 0.036 0.916 0.256 0.358 0.125 0.657

AUC t-max −0.236 0.398 0.036 0.916 0.225 0.42 0.254 0.362

Washin −0.236 0.398 0.173 0.612 0.32 0.245 0.293 0.29

Washout 0.643 0.01 0.182 0.593 −0.288 0.298 0.736 0.002



HT(min) HT(min) 0.066 0.744 0.077 0.794 −0.204 0.317 −0.213 0.342

AUC 60 = area under the curve integrated up to 60 sec

AUC 90 = area under the curve integrated up to 90 sec

AUC t-max = area under the curve integrated up to time to muscle peak