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目的探讨多层螺旋CT诊断肺撕裂伤的价值。资料与方法对67例外伤患者均使用螺旋CT进行胸部平扫,螺距0.9,扫描模式6×0.75 mm,重组层厚、层距0.75 mm。结果CT特征表现为肺气囊肿、气液囊肿、血肿。其中气囊肿58个,多为薄壁。气液囊肿23个,壁厚薄不均,囊内积液少量。56个气囊肿、气液囊肿边界模糊,边界清楚25个。肺血肿球形血肿14例,直径20～50 mm,边界清楚。气囊肿、气液囊肿或血肿周围常有不同程度肺挫伤,表现为云絮状、斑片状模糊影。41例有肋骨骨折,38例液气胸,12例气胸,6例少量胸腔积液,5例纵隔气肿,49例胸壁皮下气肿,21例胸椎骨折,15例椎旁血肿;49例同时有颅内血肿、腹部脏器损伤。结论多层螺旋CT能准确、迅速诊断肺撕裂伤的部位、范围、类型,以及合并征象,对临床治疗具有重要指导作用。
Objective To investigate the value of multi-slice spiral CT in the diagnosis of lung laceration. Materials and Methods All 67 cases of traumatic injury were scanned by spiral CT with a pitch of 0.9, a scan mode of 6 × 0.75 mm, a reconstructed layer thickness of 0.75 mm. Results CT features of lung cysts, gas cysts, hematoma. There are 58 cysts, mostly thin walls. 23 gas-liquid cysts, uneven wall thickness, a small amount of fluid within the capsule. 56 cysts were swollen, the boundaries of the cysts of the gas-liquid cyst were blurred, and 25 were clearly defined. 14 cases of pulmonary hematoma spherical hematoma, diameter 20 ~ 50 mm, clear boundary. Cystic, cystic fluid or hematoma often have varying degrees of pulmonary contusion, manifested as cloud-like, patchy fuzzy shadow. 41 cases of rib fractures, 38 cases of pneumothorax, 12 cases of pneumothorax, 6 cases of small pleural effusion, 5 cases of mediastinal emphysema, 49 cases of subcutaneous emphysema, 21 cases of thoracic fractures, 15 cases of paravertebral hematoma; Intracranial hematoma, abdominal organ injury. Conclusion Multislice spiral CT can accurately and rapidly diagnose the location, range, type of lung laceration and the signs of the merger, which play an important guiding role in clinical treatment.