Table 2. CT imaging features of papillary thyroid carcinoma patients with BRAFV600E mutation.
| CT image features | BRAFV600E mutation | χ 2 /Z | P | |
|---|---|---|---|---|
| Positive (n = 314) | Negative (n = 67) | |||
| Longest diameter (mm) | 2.029 | 0.154 | ||
| 10 | 166 (52.87) | 29 (43.28) | ||
| 10 | 148 (47.13) | 38 (56.72) | ||
| Shape | 9.293 | 0.002 | ||
| Regular | 156 (49.68) | 47 (70.15) | ||
| Irregular | 158 (50.32) | 20 (29.85) | ||
| Calcification | 128 (40.76) | 35 (52.23) | 2.970 | 0.085 |
| Aarea of marginal contact | 5.194 | 0.256 | ||
| 1/4 | 93 (29.62) | 13 (19.40) | ||
| 1/4~1/2 | 93 (29.62) | 17 (25.37) | ||
| 1/2 | 69 (21.97) | 21 (31.34) | ||
| Margin | 5.790 | 0.016 | ||
| Well-defined | 146 (46.50) | 42 (62.69) | ||
| Ill-defined | 168 (53.50) | 25 (37.31) | ||
| Difference in density between arterial and plain scan (HU) | 52.40 (32.13–73.43) | 65.60 (40.30–83.70) | −2.761 | 0.008 |
| Difference in density between venous and plain scan (HU) | 47.90 (33.10–62.03) | 53.10 (43.30–67.70) | −2.410 | 0.016 |