摘要
目的:探讨16层螺旋CTA(CT angiography,CTA)后处理技术对主动脉夹层的诊断及临床中的应用价值。材料与方法:回顾性分析2010年2月-2011年4月35例行CTA检查的主动脉夹层患者,所有患者原始数据在图像后处理工作站采用多平面重建、容积再重建、最大密度投影等后处理技术进行主动脉成像。由2名有经验的放射科副主任医师进行诊断。结果:35例均可明确显示主动脉夹层的真假腔、内膜片及破裂口部位。Ⅰ型12例,Ⅱ型3例,Ⅲ型20例;累及左锁骨下动脉5例,左颈总动脉2例,无名动脉2例,腹腔干3例,肠系膜上动脉4例,左肾动脉3例,右肾动脉2例,右髂总动脉受累6例,左髂总动脉受累8例,其中双侧髂总动脉均受累4例;合并动脉瘤3例;壁内血肿4例;所有患者均显示了单一或多发破口。结论:CTA后处理技术能快速、准确地诊断主动脉夹层,为临床治疗方案选择提供重要的影像学依据。
Purpose：To evaluate the application of 16-slice spiral CT angiography（CTA）post-processing techniques in diagnosis and evaluation of clinical application in aortic dissection.Materials and Methods：35 patients with aortic dissection performed multi-slice spiral CT angiography were reviewed retrospectively.The volume data were transferred to the workstation for image post processing and performed multiplanar reconstruction（MPR）,volume rendering（VR） and maximun intensity projection（MIP）.All images were diagnosed by two experienced associate chief physician of radiologists in consensus.Results：The true lumens,false lumens,the dissection membranes and tear crevices were showed definitely in all 35 cases.12 cases were type Ⅰ,3 cases were type Ⅱ,20 cases were type Ⅲ,in which the lesion involved left subclavian artery in 5 cases,left common carotid artery and innominate artery in 2 cases,celiac trunk in 3 cases,superior mesenteric artery in 4 cases,left renal artery in 3 cases,right renal artery in 2 cases,right common iliac artery in 6 cases,left common iliac artery in 8 cases,bilateral common iliac artery in 4 cases,combined with aneurysm in 3 cases;intramural hematoma in 4 cases.Single or multiple crevasses were showed in all cases.Conclusion：CT angiography post-processing techniques can diagnose aortic dissection quickly,can provid significant information for clinical therapeutic schedule.
出处
《现代医用影像学》
2012年第5期263-266,共4页
Modern Medical Imageology
