showed a trendp > 0.05
While there was no clear dependence between the measured relaxation time constants and the blood pH, measurements with 25 mM hyperpolarized [1- 13 C]pyruvate containing 26.6 μM OX063 radical showed a trend towards a correlation between blood pH ( r = −0.62, p > 0.05) and the T 2 relaxation time constant.