多层螺旋CT血管成像对内脏动脉瘤的诊断价值

目的 探讨多层螺旋CT血管成像技术(MSCTA)在内脏动脉瘤(VAA)诊断中的应用价值。方法 回顾性分析2008年5月至2010年10月在北京协和医院PACS工作站上,经腹部普通增强CT及MSCTA诊断的123例VAA患者的影像资料,以综合诊断为参照标准,以血管为分析单位,评价后处理图像检出VAA的诊断敏感性。结果 综合诊断出123例共172枚VAA,脾动脉瘤91例,肾动脉瘤16例,多支内脏动脉瘤8例,胃周动脉瘤、肠系膜上动脉瘤各2例,腹腔干、胃十二指肠、胰十二指肠动脉瘤及肝右动脉瘤各1例,VAA行MSCTA诊断的敏感性和特异性为100%。结论 MSCTA不同重建方法可准确、清晰地显示瘤体位置、形态、范围、瘤壁、载瘤动脉和与周围血管的关系。

Role of Multi-slice Computed Tomography Angiography in the Diagnosis of Visceral Artery Aneurysms

Objective To evaluate the value of multi-slice computed tomography angiography(MSCTA)in the diagnosis of visceral artery aneurysms(VAA). Methods The imaging data of 123 VAA patients who received abdominal contrasted CT and MSCTA on the PACS workstation in our department from May 2008 to October 2010 were retrospectively analyzed. Based on the findings of comprehensive evaluation and using vessels as the analytic unit,we evaluated the sensitivity and specificity of enhanced axial images and post-processing images in detect the VAA. Results Totally 172 VAAs were found in these 123 patients by the comprehensive evaluation,among which 107 were diagnosed by MSCTA.The results included 91 splenic artery aneurysms,16 renal artery aneurysms,8 multi-visceral artery aneurysms,2 gastric artery aneurysms,2 superior mesenteric artery aneurysms,1 celiac trunk aneurysm,1 gastroduodenal artery aneurysm,1 pancreaticoduodenal artery aneurysm,and 1 hepatic artery aneurysm. The sensitivity and specificity of MSCTA in diagnosing TAA was 100％ and 100％,respectively. Conclusion With different reconstruction methods,MSCTA can accurately and clearly display the location,shape,extent,aneurysmal wall,parent artery,and relationship with the adjacent vessels of VAAs.