16排螺旋CT血管造影在肺动脉栓塞诊断中的应用

目的探讨16排螺旋CT血管造影（MSCTA）在肺动脉栓塞（PE）诊断中的临床应用价值。方法8例临床疑诊PE患者行MSCTA检查，并将薄层数据行多平面重组（MPR）与容积重建（VR）。结果CT诊断PE8例，共35处肺动脉栓子，其中，段及段以上栓子26处，亚段及以下栓子9处。栓子显示为部分性充盈缺损，附壁性充盈缺损，中心性充盈缺损以及完全性充盈缺损。结论MSCTA能直观地显示肺动脉各级栓子的部位和形态，对临床治疗方案的选择及疗效评价有较高的应用价值。

Application of 16-slice spiral CT pulmonary angiography for diagnosing pulmonary embolism

Objective To evaluate the clinical utility of 16-slice spiral CT pulmonary angiography （CTPA）for diagnosing pulmonary embolism （PE）.Methods Eight patients with clinically suspected PE underwent CTPA.All the thin slice CT data were postprocessed by using muhiplanar reconstruction （MPR） and volume rendering technique （VRT）.Results CTPA definitely showed 35 lesions of PE in all the 8 cases, of them,26 lesions were occurred in middle segment or above level and 9 lesions in sub-segment or below level.The lesions of PE appeared as partial filling-defect,adhesive-mural filfing-defect,eentric filling-defect and complete filling-defect.Conclusion CTPA can directly reveal the location and shape of PE lesions within varied grades of pulmonary arteries so that it has important utility to select the therapeutic protocol and to evaluate the therapeutic effect.