2.
术前恶性不除外、手术病理确诊肺部良性病灶的CT影像学特征
Chest CT features of surgical pathology confirmed benign pulmonary lesions in which malignancy could not be excluded in preoperative assessment
| Variable | Data |
| CT: computed tomography. | |
| Total number of evaluable nodules | 323 |
| Location | |
| Right upper lobe | 91 (28.2%) |
| Right middle lobe | 39 (12.1%) |
| Right lower lobe | 67 (20.7%) |
| Left upper lobe | 70 (21.7%) |
| Left lower lobe | 56 (17.3%) |
| Peripheral type | 241 (74.6%) |
| Central type | 17 (5.3%) |
| Unknown | 65 (20.1%) |
| Diameter of pulmonary lesions (cm) | |
| < 8 | 29 (9.0%) |
| 8-20 | 205 (63.5%) |
| 21-30 | 57 (17.6%) |
| > 30 | 32 (9.9%) |
| Attenuation | |
| Solid nodule | 212 (65.6%) |
| Pure ground-glass nodule | 46 (14.2%) |
| Part-solid nodule | 33 (10.2%) |
| Unknown | 32 (9.9%) |
| Spicule sign | |
| No | 117 (36.2%) |
| Yes | 71 (22.0%) |
| Unknown | 135 (41.8%) |
| Lobulation | |
| No | 109 (33.7%) |
| Yes | 94 (29.1%) |
| Unknown | 120 (35.2%) |
| Pleural indentation | |
| No | 147 (45.5%) |
| Yes | 81 (25.1%) |
| Unknown | 95 (29.4%) |
| Vascular convergence sign | |
| No | 94 (29.1%) |
| Yes | 130 (40.2%) |
| Unknown | 99 (30.7%) |
| Vacuole sign | |
| No | 180 (55.7%) |
| Yes | 23 (7.1%) |
| Unknown | 120 (37.2%) |
| Satellite lesions | |
| No | 177 (54.8%) |
| Yes | 25 (7.7%) |
| Unknown | 121 (37.5%) |
| Peri-lesion effusion | |
| No | 246 (76.2%) |
| Yes | 2 (0.6%) |
| Unknown | 75 (23.2%) |