INTRODUCTION
Acute type A aortic dissection (ATAAD) is a common and life-threatening aortic disease with significant morbidity and mortality [1]. The hospitalization rate of aortic dissection was 2.0/100’000 per year [2]. It was expected that emergency surgery was safe to rescue patients suffering from catastrophic conditions [3].
Most studies report the aortic diameter [4-5], several groups [6-7] recommend volumetric measurement and morphological changes as the accurate method to assess descending aortic remodeling. However, there was no volume classification assessment standard for ATAAD patients, and the remodeling result of different lengths after frozen elephant trunk(FET) implantation is still controversial.
Our purpose is to measure volumetric changes of ATAAD patients with different lengths of FET on computed tomography angiography (CTA) and use three-dimensional reconstruction technology to reconstruct models and evaluate the results of descending aorta remodeling.