多排螺旋CT肺动脉血管成像技术在肺血管疾病中的应用

目的探讨多排螺旋CT肺动脉血管成像(MSCTPA)诊断肺血管病变的临床价值.方法回顾性分析经手术病理或DSA证实的48例肺血管病变的MSCTPA影像表现,图像后处理包括容积再现(VR)、薄层最大密度投影(thin MIP)、多平面重组(MPR)、最大密度投影(MIP)、曲面重建(CPR)及仿真内窥镜(CTVE)等.结果全部病例依据直观的二维、三维重组图像得以明确诊断,其中,肺动脉栓塞43例,肺动静脉瘘4例,肺隔离症1例.结论MSCTPA结合二维、三维图像重组技术能全面、直观地显示病变全貌,对肺血管病变的临床诊断和治疗有一定价值,可取代有创的DSA检查.

Application of Multi-slice Spiral CT Pulmonary Angiography in the Diagnosis of Pulmonary Vascular Diseases

Objective To investigate the clinical value of multi-slice spiral CT pulmonary angiography ( MSCTPA) in the diagnosis of pulmonary vascular diseases. Method The imaging manifestations of MSCTPA in 48 cases with pulmonary vascular diseases proved by pathology or DSA were analyzed retrospectively. The image post-processing included VR,thin-MIP,MPR,MIP,CPR and CTVE. Results All patients were accurately diagnosed based on the images of two and three-dimensional (2D and 3D) reconstruction. There were 43 cases with pulmonary artery embolism,4 cases with pulmonary arteriovenous fistula (PAVM),and 1 case with pulm-onary sequestration. Conclusion The combined application of MSCTPA with 2D and 3D reconstruction can dis-play the lesions comprehensively and directly,showing a great significance for the clinical diagnosis and treatment of pulmonary vascular diseases. It can replace the invasive DSA.