肺动脉栓塞的螺旋CT诊断

目的 探讨螺旋CT检查对肺动脉栓塞的诊断价值。方法 对23例临床疑为肺动脉栓塞的患者行CT平扫及增强扫描，其中，5例于溶栓治疗6～14d后进行了复查。结果 23例患者累及62处肺动脉。25处表现为中心性充盈缺损，29处表现为附壁性充盈缺损，8处为完全性栓塞。其他间接征象有渗出性改变，胸腔积液，胸膜局限性肥厚，肺动脉高压，右心室增大以及心包积液。结论 螺旋CT检查对肺动脉栓塞的诊断具有重要价值。

Helical CT diagnosis of pulmonary embolism

Objective To determine the value of helical CT scanning for diagnosing the pulmonary embolism(PE).Methods Twenty -three patients with clinically suspected PE underwent helical CT scanning without and with contrast enhancement,of whom,5 patients underwent additional CT examinations at 6-14 days after the thrombolytic therapy.Results CT directly demonstrated 63 sites of PE in all patients,which comprised 25 sites of central filling defect,29 sites of adhered-mural filling defect,and 8 sites of complete-pattern occlusion.The indirect signs of PE comprised exudative changes,hydrothorax,pleural localized thickening,pulmonary hypertension,right ventricular enlargement,and pericardial effusion.Conclusion Helical CT scanning has important value for diagnosing PE.