《Table 1 Characteristics of the 86 participants》

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《Accuracy of multi-echo Dixon sequence in quantification of hepatic steatosis in Chinese children and adolescents》

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BMI:Body mass index；SD:Standard deviation.

Participants were children and adolescents（mean age 13.6±1.9 years，range 9-17years）with a mean BMI of 26.3±5.3 kg/m2（range 16.6-38.0 kg/m2）.The characteristics of the participants are shown in Table 1.The MRI-PDFF in the MRS ROI and the entire liver was 9.9%±10.3%with a range of 0.3%-39.9%，and 10.6%±9.4%with a range of 1.9%-38.9%，respectively.The MRS-PDFF was 9.1%±10.0%，with a range of0.5%-37.8%.The MRS-PDFF and MRI-PDFF measured with ROI corresponding to the MRS voxel were not significantly different（P=0.384）.However，the MRS-PDFF was significantly lower than the MRI-PDFF measured with the entire liver（P=0.038）.Four groups of typical MRI-PDFF maps and matching MRS with varying percentages of PDFF values are presented in Figure 1.