Fig. 4

Differences in image quality between stents. Example illustrating the different image quality of two stents implanted in the same patient and, therefore, imaged with the same CT technical parameters (a). The more cranial stent (b1–b4) was an AndraStent that showed excellent quality of the lumen (b1) and of the aortic wall at stent level at the proximal (b2), mid (b3) and distal (b4) thirds of the stent. The more caudal stent was a Cheatham Platinum stent that showed lower image quality for both the lumen (c1) and the aortic wall at the three examined levels (c2, c3, c4)