Table II.
Comparison of the imaging features of MDCT of the patients in groups A and B (mean ± SD).
| Categories | Group A (n=98) | Group B (n=70) | t/χ2 | P-value |
|---|---|---|---|---|
| Type of nidus | 0.049 | 0.826 | ||
| Single | 77 (78.57) | 54 (77.14) | ||
| Multiple | 21 (21.43) | 16 (22.86) | ||
| Site of nidus | 0.334 | 0.563 | ||
| Right | 53 (54.08) | 41 (58.57) | ||
| Left | 45 (45.92) | 29 (41.43) | ||
| Size of nidus (mm) | 12.3±2.4 | 8.6±3.9 | 7.596 | <0.001 |
| Size of solid component (mm) | 1.6±0.8 | 0.6±0.4 | 9.628 | <0.001 |
| Nature of nidus | 19.040 | <0.001 | ||
| pGGN | 38 (38.78) | 51 (72.86) | ||
| mGGN | 60 (61.22) | 19 (27.14) | ||
| Pleural indentation | 3.323 | 0.068 | ||
| Yes | 10 (10.20) | 2 (2.86) | ||
| No | 88 (89.80) | 68 (97.14) | ||
| Burr | 21.661 | <0.001 | ||
| Yes | 36 (36.73) | 4 (5.71) | ||
| No | 62 (63.27) | 66 (94.29) | ||
| Lobes | 23.851 | <0.001 | ||
| Yes | 72 (73.47) | 25 (35.71) | ||
| No | 26 (26.53) | 45 (64.29) | ||
| Clear periphery | 2.661 | 0.103 | ||
| Yes | 81 (82.65) | 64 (91.43) | ||
| No | 17 (17.35) | 6 (8.57) | ||
| Vacuole | 3.680 | 0.055 | ||
| Yes | 36 (36.73) | 16 (22.86) | ||
| No | 62 (63.27) | 54 (77.14) | ||
| Similar round | 1.721 | 0.190 | ||
| Yes | 65 (66.33) | 53 (75.71) | ||
| No | 33 (33.67) | 17 (24.29) |
MDCT, multi-detector CT; SD, standart deviation; mGGN, mixed ground glass nodules; pGGN, pure ground glass nodules.