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- W2066070293 abstract "The dynamic T1-weighted signal in first-pass myocardial perfusion MRI can vary as a function of k-space trajectory. The purpose of this study, therefore, was to compare the relative T1-weighted signal produced by the linear, centric, and reverse centric k-space trajectories at 3T. The centric k-space trajectory yielded higher arterial input function (AIF) than the linear and reverse centric k-space trajectories (6.21 ± 0.84 vs. 4.75 ± 0.75 vs. 4.39 ± 0.85 mM, respectively; N = 9; P < 0.01), and the reverse centric k-space trajectory yielded higher myocardial signal contrast (as a fraction of equilibrium magnetization) than the linear and centric k-space trajectories (0.17 ± 0.02 vs. 0.12 ± 0.02 vs. 0.05 ± 0.01, respectively; N = 9; P < 0.001). Compared to the linear k-space trajectory, the centric k-space trajectory is relatively optimal for the quantification of AIF, whereas the reverse centric k-space trajectory is relatively optimal for high contrast of myocardial wall enhancement. Magn Reson Med, 2007. © 2007 Wiley-Liss, Inc." @default.
- W2066070293 created "2016-06-24" @default.
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- W2066070293 date "2007-01-01" @default.
- W2066070293 modified "2023-09-25" @default.
- W2066070293 title "Influence of thek-space trajectory on the dynamicT1-weighted signal in quantitative first-pass cardiac perfusion MRI at 3T" @default.
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- W2066070293 doi "https://doi.org/10.1002/mrm.21344" @default.
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