Application of Multislice spiral CT angiography in the diagnosis of aortic dissection

Objective:To study the application of multislice CT angiography in the diagnosis of aortic dissection.Methods:From September 2010 to January 2012,12 cases of aortic dissection underwent multislice spiral CT,and retrospective analysis using lightspeedTM 16 layer and BrightspeedTM of 8-slice CT scan,and then transfer data into the workstation,using three-dimensional reconstruction on aortic dissection by surface reconstruction,multi-dimensional reconstruction,shaded surface reconstruction in the workstation.Results:In 12 cases,5 cases of DeBakey type Ⅰ,3 cases of DeBakey type Ⅱ,and the remaining 4 cases of DeBakey type Ⅲ.2 cases of patients with Marfan syndromes were characterized in three-dimensional reconstruction image,and aortic branch was involved.All cases can clearly show the entire and branch of the aortic,true and false lumen intimal lesions as well as dissecting the location and extent of wall calcification,and mural thrombus and lesion spatial relationships can also be satisfied with the show.Virtual endoscopy can show the relationship of the intimal flap and vascular dissection intimal tear.Conclusion:The multi-slice spiral CT angiography can accurately rapid diagnosis of dissecting and genotyping to assist the clinical develop appropriate treatment programs,to provide precise anatomical information for the surgery for the evaluation of vascular smooth flow and clear whether the intravascular membrane proliferation and the presence of stent deformation there is a very important clinical significance,clinical widely applications.