ANGIOGRAPHY WITH 16-SLICE SPIRAL CT IN THE DIAGNOSIS AND EVALUATION OF AORTIC DISSECTION

Objective To explore the diagnostic value of angiography with 16-slice spiral CT in aorta dissection.Methods The findings of CT angiography of 32 cases of aortic dissection were analyzed retrospectively.Post-processing techniques included multi-planar reconstruction,maximum intensity projection,curved planar reconstruction,volume reconstruction and virtual endoscopy.Results In the diagnosis of aortic dissection,axial images was the most important,which was the basis of all image post-processing and had the most reliable image information displayed.MPR,MIP,VR,CTVE were the main image processing methods.The original axial along with other enhanced images based on the comprehensive use of various reconstruction methods could clearly display the type of aortic dissection,disease extent,true and false lumen,break,and other anatomical details of the intimal flap and the relationship between the anatomical details and the main branch vessels.Conclusion Angiography with 16-slice spiral CT in the diagnosis and evaluation of aortic dissection is a more effective non-invasive screening method with some essential value for the clinical therapies.