Table 1.
Results of Examined Lymph Nodes According to the Criteria.
| Criteria | Benign Lymph Nodes (n = 45) | Metastatic Lymph Nodes (n = 52) | P value |
|---|---|---|---|
| Gray-scale ultrasound | |||
| Short-axis diameter | = 0.014 | ||
| <7 mm | 21 (47) | 14 (27) | |
| ≥7 mm | 24 (53) | 38 (73) | |
| L/Sa | = 0.066 | ||
| >2 | 23 (51) | 17 (33) | |
| ≤2 | 22 (49) | 35 (67) | |
| H/Lb | <0.01 | ||
| >0.5 | 32 (78) | 16 (31) | |
| ≤0.5 | 13 (22) | 36 (69) | |
| Cortex thickness | <0.01 | ||
| <3 mm | 37 (82) | 23 (44) | |
| ≥3 mm | 8 (18) | 29 (56) | |
| Border | = 0.014 | ||
| Regular | 25 (56) | 16 (31) | |
| Irregular | 20 (44) | 36 (69) | |
| Elastography score | |||
| 1 | 16 (35) | 0 | |
| 2 | 26 (58) | 11 (21) | |
| 3 | 3 (7) | 14 (27) | |
| 4 | 0 | 20 (38) | |
| 5 | 0 | 7 (14) | |
| Strain ratio | 2.35 ± 1.80 (0.51–6.31) | 12.64 ± 5.30 (7.6–39.9) | <0.01 |
| <2.62 | 33 (73) | 9 (17) | |
| ≥2.62 | 12 (27) | 43 (83) | |
Note-Numbers in parentheses are percentages. aL/S indicates long-axis diameter to short-axis diameter ratio. bH/L indicates hilum diameter to long-axis diameter of lymph node.