4.Comparison of CT measurements:
Figure 3 shows comparison of CT measurements of the different aortic diameters.
The mean total aortic diameter remained stable at the aortic arch and descending thoracic aorta in all patients. It increased at the isthmus in one patient (by 31%). The false lumen was obliterated at the aortic arch in three patients and decreased in size (by 60%) in the fourth one. At the level of the isthmus it increased in only one patient because of reperfusion. However, at the level of the descending thoracic aorta, the mean false lumen size decreased in all patients (by 43%). Regarding the mean true lumen size, it increased in all patients (by 91%) compared with baseline. However, the stent was compressed in one patient at the level of the isthmus (figure 4). No distal anastomosis re-entry tear was observed. A new entry tear was identified in one patient at the level of abdominal aorta far below the distal AMDS tip.