MSCT胸腹联合造影对急性大血管病变的诊断价值探讨

The application of multi-slice spiral CT angiography in the diagnosis of acute macrovascular disease of chest and abdomen

目的:探讨多层螺旋CT血管成像(MSCTA)对胸腹部急性大血管病变的临床应用价值。方法:对46例临床可疑急性大血管病变患者行MSCT胸腹联合增强扫描,造影剂使用浓度为300mg/100ml的碘海醇,速率3ml/s;图像后处理技术采用SVR、MIP、MPR及CPR。结果:46例中,主动脉夹层动脉瘤12例,肺动脉栓塞4例,动脉瘤3例,肠系膜上动脉栓塞2例,主动脉缩窄1例,MSCTA均能准确、清晰显示。结论:MSCTA诊断急性大血管病变准确、简便、快捷,三维重组图像更加清晰、直观显示病变的部位及形态特征,立体感强,体现出MSCTA对急性大血管病变诊断中的优势。

Objective： To evaluate the diagnostic value of multi-slice spiral CT angiography （MSCTA） in macrovascular disease of chest and abdomen.Methods：46 cases with shadiness macrovascular disease were performed contrast scan by MSCT, the contrast medium （Iohexol 300mg/100ml）, the rate was 3ml/s, the images were transferred to the workstation and performed shaded volume rendering （SVR）, maximun intensity projection（MIP）, multiplanar reconstruction （MPR）and curved planar reconstruction（CPR） .Results： 12 cases dissecting aneurysm of aorta, the pulmonary artery embolism 4 cases, aneurysm 3 cases, 2 cases superior mesenteric artery embolism, 1 case aortic coarctation, MSCTA were showed it clearly and truly. Conclusion： The diagnostics of MSCTA in acute macrovascular disease are accurate, convenient and quick, 3D images had dear, and can dearly demonstrate the lesions. It has obvious advantage in the diagnosis of acute macrovascular diseases.