CONCLUSION: If the middle AA is dilated, it is considered unsuitable to perform TEVAR using conventional endografts without additional proximal fixation in the aortic segment at the STJ due to its pronounced reversed-funnel segmental morphology. By contrast, the aortic segment at the brachiocephalic trunk seems to be promising for performing TEVAR using an endograft of the appropriate size and conformability. Moreover, endograft sizing using the average aortic diameter instead of the maximal …