Table 3.
Observer agreement (κ statistics) over the evaluation of features of thyroid nodules in multiplanar reformation mode (MPR) and by thin-slice rendering with surface algorithm (Surf).
κ | p | ||
---|---|---|---|
Echogenicity | MPR | 0.70 | < 0.0001 |
Echogenicity | Surf | 0.71 | < 0.0001 |
Borders | MPR | 0.82 | < 0.0001 |
Borders | Surf | 0.60 | < 0.0001 |
CAL | MPR | 0.57 | < 0.0001 |
CAL | Surf | 0.44 | = 0.0002 |
Shape in c-plane | Surf | 0.57 | < 0.0001 |
calcification/microcalcification-like echogenic foci (CAL); c-plane - plane parallel to ultrasound probe