Fig. 1

Aortic measurements after zone 2 hybrid thoracic endovascular aortic repair for acute type B aortic dissection. The transverse line on the figure points the distal descending thoracic aorta level. The same level of CT axial images is presented together. False lumen regression over the entire thoracoabdominal aorta was observed in five patients (38.5%), false lumen regression at the thoracic aorta was observed in four patients (30.8%), partial false lumen thrombosis of the thoracic aorta was found in one patient (7.7%), and remaining false lumen flow or enlargement of the descending thoracic aorta was noted in three patients (23.0%). The rate of positive aortic remodeling was 76.9%. FL, false lumen; DTA, descending thoracic aorta