Fig. 4From: Evaluation of an optimized metal artifact reduction algorithm for flat-detector angiography compared to DSA imaging in follow-up after neurovascular proceduresIn image a a statement concerning residual perfusion of the aneurysm was not possible due to streak artifacts and image hardening caused by the coil material. After application of MARA the residual perfusion could be detected as seen in image b, congruent to the result of the digital subtraction angiography as seen in image cBack to article page