MSCT肺动脉造影在肺动脉栓塞诊断中的优势

目的探讨多层螺旋CT肺动脉造影（MSCTPA）在肺动脉栓塞（PE）诊断中的临床应用及价值。方法回顾性分析17例PE患者的MSCTPA的临床表现。结果17例PE共检出亚段以上肺动脉栓塞85支。直接征象为栓子形成的各种充盈缺损。间接征象包括局限性肺纹理稀疏，肺内实变影，胸膜腔积液，肺动脉扩张，支气管动脉扩张，右心增大。结论MSCTPA能清楚地显示PE的直接及间接征象，是正确诊断PE且具有安全、快捷、无创的首选诊断检查方法。

The Superiority of MSCTPA in the Diagnosis of PE

Objective To explore the application of multi - slice spiral CT pumlmonary angiography （ MSCTPA ） in the diagnosis of pulmonary embolism （ PE ）. Methods The MSCTPA manifestations and clinic features of 17 cases with PE were analysed retrospectively. Results 85 branches of pulmonary artery were involved in 17cases. By means of MSCTPA, the various direct signs of pulmonic filling defect are shown clearly. Some indirect signs can also be detected： the sparsely marked local lung veins, parenchymal opacities, pleural effusion, the dilatation of central pulmonary arteries, the dilatation of bronchial artery, and the enlargement of the right heart. Conclusion From the clearly - shown direct and indirect signs of PE under MSCTPA, a conclusion could be reached that MSCTPA could be regarded as the first choice for the diagnosis of PE in that it is not only non - cut and safe but also efficient and convenient in clinical practice.