Abstract：Objective: To investigate the different imaging features between isolated peripheral arterial dissection and aortic dissection. Materials and Methods: CTA images were retrospectively analyzed for isolated peripheral arterial dissection in 22 cases and aortic dissection in 25 cases, and then imaging features were compared. Results: The true lumen, false lumen and involved length of arterial dissection could be clearly distinguished from CTA images of aortic dissection and isolated peripheral arterial dissection. Most patients of the two groups could be found varying degrees of atherosclerosis. Between the two groups, there were statistically significant difference in the ratio of false-true lumen, the involved length of artery and the incidence of atherosclerosis, P<0.05. Conclusion: Isolated peripheral artery dissection often occurred on the basis of atherosclerosis, and the affected artery was limited, and the true lumen is often greater than the false lumen. Its condition was relatively stable, and its imaging features existed obvious differences from aortic dissection.
2014, Vol. 25 
