Fig 3.

Influence of an implanted stent on the image quality. MIP of the CE-MRA (A, slice thickness: 13.0 mm) and the ungated QISS-MRA (B, slice thickness: 13.0 mm) with angulation to the left internal carotid artery of a 50-year-old patient who was stented 5 years ago due to a carotid artery dissection. The corresponding MIP of a CE-CTA (C, slice thickness: 1.4 mm) was obtained 2 years, and DSA, 1 year after stent placement. In both MRA techniques, there are just slight artifacts at the ends of the stent, and the lumen is well visualized. This patient was not included in this study.