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- W4220732435 abstract "Abstract The metabolic pathway of [6,6’- 2 H 2 ]-labeled glucose was investigated with two different techniques. The first technique used direct detection of deuterium applying Deuterium Metabolic Imaging (DMI). The second technique used the indirect detection of deuterium with proton MR spectroscopy (MRS) called Quantitative Exchanged-label Turnover (QELT) MRS. For the first time, time-resolved data was acquired for both techniques in the same healthy human subjects and directly compared. The time-curves were used in a kinetic model to estimate rates of the metabolic pathway of glucose. Two different kinetic models were compared. One included only DMI data, the second one combined DMI and QELT. For the first model, a tricarboxylic acid (TCA) cycle rate of 0.69 ± 0.10 μmol·min -1 ·g -1 was determined. For the second model, the estimated TCA cycle rate was 0.68 ± 0.12 μmol·min -1 ·g -1 . In addition, the rate of glutamine synthesis from glutamate could be estimated with model 2 (0.51 ± 0.15 μmol·min -1 ·g -1 ). The sensitivity of both methods was evaluated and compared to alternative techniques." @default.
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- W4220732435 date "2022-01-27" @default.
- W4220732435 modified "2023-10-15" @default.
- W4220732435 title "Dynamic observation of <sup>2</sup>H labeled compounds in the human brain with <sup>1</sup>H versus <sup>2</sup>H magnetic resonance spectroscopy at 9.4T" @default.
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- W4220732435 doi "https://doi.org/10.1101/2022.01.24.477582" @default.
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