摘要
目的探讨16层CT肺动脉造影对肺动脉栓塞(PE)的诊断价值。方法对24例PE患者行16层CT血管造影检查,采用多平面重建(MPR)、最大密度投影(MIP)、容积再现(VR)多种图像后处理技术,并结合轴位图像进行综合分析。结果 24例均能显示肺动脉栓塞的部位、范围、局部管腔狭窄程度,19例急性肺动脉栓塞的直接征象为"截断征""、双轨征";5例慢性肺动脉栓塞主要表现为肺动脉管腔内偏心性、附壁性的充盈缺损。结论 16层CT血管造影是诊断肺动脉栓塞及其溶栓疗效评价和随访最有效的无创性检查方法之一。
Objective To evaluate the clinical applications of 16-slice spiral CT pulmonary angiography in the diagnosis of pulmonary embolism. Methods Twenty four patients with pulmonary embolism underwent 16-shce spiral CT pulmonary angiography. The post-processing methods included mutiplanar reformation, maximum intensity projection, volume rendering. Results The position and extent of pulmonary embolism and the extent of pulmonary artery stenosis were showed in all the 24 cases.The direct presence of 19 cases with acute pulmonary embolism was visualized as a＂total occlusion＂or＂double canal＂signs.However,5 cases with chronic pulmonary embolism demonstrated partial or mural filling defect. Conclusion 16-slice sp!ral CT pulmonary angiography can be used as a noninvasive and effective method in diagnosing pulmonary embolism,evaluating the effect of thrombolysis and follow-up.
出处
《实用医学影像杂志》
2012年第3期180-182,共3页
Journal of Practical Medical Imaging
