Table 2. QUS measurements with MRI PDFF.
MRI-PDFF hepatosteatosis grade |
TAI (dB/cm/MHz) Median (IQR) |
TSI median (IQR) |
EzHRI median (IQR) |
n (%) |
S0 (<%5) |
0.64 (0.61-0.66) |
83.87 (71.14-87.44) |
2.29 (1.85-2.55) |
5 (10) |
S1 (≥5%-<16.3%) |
0.70 (0.67-0.77) |
89.24 (88.41-96.00) |
2.63 (2.64-3.03) |
19 (37) |
S2 (≥16.3%-<21.7) |
0.82 |
98.97 (97.02-100.01) |
3.47 (3.34-3.55) |
5 (10) |
S3 (≥21.7%) |
0.84 |
101.94 (100.85-102.65) |
3.68 (3.57-3.85) |
22 (43) |
TAI: Tissue attenuation imaging, QUS: Quantitative Ultrasound, MRI: Magnetic resonance imaging, PDFF: Proton density fat fraction, IQR: Interquartile range, TSI: Tissue scatter distribution imaging