The Imaging Features of 64-MDCT Angiography in Diagnosis of the Intimal Flap Entry of Aortic Dissection

Objective: To analysis the correlation with the position of the intimal flap entry and the involved aortic branch of aortic dissection(AD). Methods: Seventy-one patients with AD underwent 64-MDCTA examination,and the source images transferred to computer workstation subsequently post-processed using MPR,VR,CPR,MIP. Results: The entry of intimal flap could be shown in all of 71 patients. There were 270 entries of the intimal flap. And there are 208 branch which were involved,at the level of the involved branch,27.84% have entries in the main branch of the aorta,94.81% have entries in the ramiparietals. Conclusion: The position of the entry and the involved aortic branch have high correlation.