Fig. 1.

Role of metal artifact reduction/subtraction techniques: CT scan (a) of both hip axial images following total hip replacement shows significant signal loss due to proton starvation and beam hardening artifacts (arrow) which is drastically reduced by metal artifact reduction techniques as in (b). MRI scan of both hip axial images(c) following total hip replacement shows significant image distortion and loss of signal around the implant(arrow). Substantial improvement of periprosthetic tissue details following artifact reduction techniques as in (d).