Weak correlations were observed between the PCr/ATP ratio and the metabolic parameters assessed by hyperpolarized MRS (ie, positive correlations between PCr/ATP and the bicarbonate/pyruvate, alanine/pyruvate and bicarbonate/lactate ratios and a negative correlation between PCr/ATP and the lactate/pyruvate ratio, but these failed to reach statistical significance, Online Figure I).
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Noninvasive In Vivo Assessment of Cardiac Metabolism in the Healthy and Diabetic Human Heart Using Hyperpolarized <sup>13</sup>C MRI.
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