The advantages of 16-slice spiral CT angiography in the diagnosis of aortic dissection

Objective To discuss the image technology and diagnosis advantages of 16- slice spiral CT angiography for aortic dissection.Methods The retrospective analysis of multi-slice spiral CT angiography(MSCTA) for 25 patients with aortic dissection verified by confirmed by operations.The imaging parameters were set as following: standard reconstruction section thickness 1.25mm,space 1.2mm.The volume data of all patients were reconstructed using 3D techniques including multi-planar reconstruction (MPR),maximum intensity projection(MIP) and volume rendering(VR).Results these cases could be displayed clearly by MSCTA with the range of the aortic dissection, intimal flap,the location of the rupture,true and false lumen,mural thrombus around the tumor and the relationship with peripheral big vessels.Conclusion Aortic MSCTA is a very ripe imaging reprocessing technique.It can be convenient,quick,accurate and multilevel in respect of displaying Aortic dissection.It plays an important advantage on the diagnosis of aortic dissection and should be the first choice for diagnosis of aortic dissection.