Abstract
We propose digital tomosynthesis with a new reconstruction method, a combination of iterative reconstruction (IR) with metal extraction, in order to reduce metal artifacts with compatibility of high spatial resolution for post-TKA follow-up examination. For comparison of metal artifact reduction efficiency, three images were respectively reconstructed by conventional filtered back projection (FBP), FBP with modified kernel and proposed method. Proposed method provides higher resolution images with remarkably less metal artifacts than others, where we can observe the structure of trabecular bone in the region very close to a metal prosthesis. We demonstrate some clinical applications.
