Postprandial changes in phase contrast metrics (PV flow, PV velocity), DWI metrics (liver D, D*, PF and ADC) and liver stiffness (LS) measured in 30 subjects (expressed in mean ± SD).

PV: portal vein, PV flow (ml/s), PV velocity (cm/s), D (true diffusion coefficient, ×10−3 mm2/s), D* (pseudodiffusion coefficient, ×10−3 mm2/s), PF (perfusion fraction, %), ADC (apparent diffusion coefficient, ×10−3 mm2/s), liver stiffness (liver stiffness, kPa).**First fasting measurement.***Paired Wilcoxon test.****Calculated as 100*(postprandial-fasting)/fasting.****LS calculated in 27 subjects.

PV相关指标：门静脉（portal vein）、门静脉血流量（PV flow，单位：ml/s）、门静脉血流速度（PV velocity，单位：cm/s）；其余参数如下：D：真实扩散系数（true diffusion coefficient，×10⁻³ mm²/s）；D*：伪扩散系数（pseudodiffusion coefficient，×10⁻³ mm²/s）；PF：灌注分数（perfusion fraction，单位：%）；ADC：表观扩散系数（apparent diffusion coefficient，×10⁻³ mm²/s）；肝脏硬度（liver stiffness，单位：kPa）。
* 首次空腹测量。
** 配对Wilcoxon检验。
*** 计算公式为100*(餐后值-空腹值)/空腹值。
**** 肝脏硬度（LS）仅在27名受试者中完成计算。