Review of modern computed tomography metal artifact reduction techniques

Abstract

Metal objects can cause severe artifacts on CT scans, and this complicates scan interpretation or may even hide or simulate pathology on the image. This article aims to present modern metal artifact reduction (MAR) methods that can be used in clinical practice. Described methods include scanning preferences adjustment and four popular commercially available MAR algorithms: O-MAR, SmartMAR, iMAR, and SEMAR.