Computed Tomography Angiography in Type I Acute Aortic Dissection Complicated with Visceral Malperfusion

Abstract

INTRODUCTION: М alperfusion is one of the most common life-threatening complications of acute aortic dissection. If arterial obstruction persists, it can progress to malperfusion syndrome - end-organ malfunction with infarction. This significantly increases the risk of mortality. Depending on the morphological characteristics of dissection, the pattern of obstruction can be classified as dynamic, static or combined. The choice of imaging modality can be quite challenging. CT-angiography is the modality of choice in an emergency setting as it provides the desired anatomical details as well as great spatial and temporal resolution. CASE PRESENTATION: The aim of this report is to review the important CT signs of malperfusion and illustrate the different mechanisms by presenting different cases of type I acute aortic dissection, complicated with malperfusion. CONCLUSION: Early diagnosis and intervention for visceral ischemia is crucial. Different treatment strategies have been developed, depending of the characterization of the extent of malperfusion. Thus, it is important that radiologists are familiar with this complication of aortic dissection and are able to convey essential information to the clinician.