Table 2. Diagnostic Performances of Different Parameters of SWV with and without QM.
| Parameters | Cut-Off Value | Sensitivity | Specificity | AUC |
|---|---|---|---|---|
| SD − QM | > 1.11 | 186/209 (89.0) | 143/159 (89.9) | 0.924 |
| SD + QM | > 0.83 | 185/209 (88.5) | 143/159 (89.9) | 0.912 |
| p value | 1 | 1 | 0.010* | |
| SWVmean − QM | > 3.04 m/s | 176/209 (84.2) | 144/159 (90.6) | 0.912 |
| SWVmean + QM | > 3.12 m/s | 186/209 (89.0) | 141/159 (88.7) | 0.932 |
| p value | 0.012* | 0.625 | < 0.001* | |
| SWVmax − QM | > 4.73 m/s | 186/209 (89.0) | 141/159 (88.7) | 0.923 |
| SWVmax + QM | > 4.73 m/s | 186/209 (89.0) | 142/159 (89.3) | 0.922 |
| p value | 1 | 1 | 0.550 |
Data are number of findings. Numbers in parentheses are percentages. *Indicates significant difference. AUC = areas under receiver operating characteristic curve, QM = quality map, SD = standard deviation, SWV = shear-wave velocity, SD − QM = SD without guidance of QM, SD + QM = SD with guidance of QM, SWVmean − QM = mean value of SWV without guidance of QM, SWVmean + QM = mean value of SWV with guidance of QM, SWVmax − QM = max value of SWV without guidance of QM, SWVmax + QM = max value of SWV with guidance of QM