肺动脉栓塞的螺旋CT诊断

Helical CT diagnosis of pulmonary embolism

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。

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 thrombolytie 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 ventrieular enlargement, and pericardial effusion. Conclusion Helical CT scanning has important value for diagnosing PE.