Fig. 3From: An adaptive optimal viewing angle determination algorithm for TEVAR operationAngiographic images obtained from different X-ray directions. The true 3D length of the aorta is 30 cm. In the angiographic image A (i.e. direction A), important overlaps can be observed, associated with a significant foreshortening (the length of the aorta is 26 cm). The angiographic image B (i.e. direction B, perpendicular to the aortic arch plane), there is no overlapping nor foreshortening (the length of the aorta is 30 cm)Back to article page