摘要
目的评价16层螺旋CTA对肺栓塞(PE)血管造影的价值及肺栓塞形态与分布。资料与方法 37例肺动脉栓塞(简称肺栓塞)患者行血管造影(CTA),CT后处理采用平面重建(MPR)、最密度投影(MIP)及容积再现(VR)。根据血栓在肺动脉内形态分型。同时观察血栓分布情况。结果肺动脉内示低密度充盈缺损,其形态为:中央型25例,附壁型4例,闭塞型8例。分布于肺动脉干4例,左右肺动脉6例,肺叶动脉13例,段动脉10例,亚段动脉6例。三种后处理技术综合运用,可以明确PE诊断,其中MPR价值最高。结论 16层螺旋CTA对肺栓塞的诊断具有明显的技术优势。同时可清楚地显示PE的解剖位置及形态,为临床治疗方案的选择提供依据。
Ohjective To ewduate the value of 16 slice spiral CTA in diagnosis of pulmonary embolism（PE） and distribution and morphology of pulmonary embolism. Methods 37piatients with pulmonary embolism underwent angiography （CTA）, planar reconstruction （MPR）, density of the projection（MIP） and volume rendering （VR）. Patients were classi- fied according to the morphology classification of thrombus in the pulmonary artery. And the distributiort of thrombus was observed. Results Pulmonary arteries showed low den- sity filling defect as central type in 25 case, attached wall type in 4 cases, and occlusion in 8 cases. 4 cases distributed in pulmonary trunks, 6 cases in left or right pulmonary artery, 13 cases in lobar arteries, 10 cases in segmental arteries, and 6 cases in inferior segmental arteries. PE could be confirmed by the application of three kinds of postprocessing techniques, and MPR had the most significant value. Conclusion 16 slice spiral CTA has obvious technical adwmtages in diagnosis of pulmonary embolism. At the same time, it can clearly display the anatomy and morphology of PE, and provide basis for clinical treatment.
出处
《中国CT和MRI杂志》
2013年第2期28-30,共3页
Chinese Journal of CT and MRI
关键词
肺栓塞
多排螺旋CT
血管
造影
Pulmonary embolism
muulti-slice spiral CT angiography
