Application of a novel metal artifact correction algorithm in flat-panel CT

Ziele: To evaluate the possibilities in applying a novel algorithm to correct for beam hardening artifacts caused by metal implants in computed tomography performed on a flat panel equipped c-arm angiography system (FP-CT). Methode: 35 datasets of cerebral FP-CT acquisitions (XperCT, Allura Xper FD 20/20, Philips) with present implants (32 patients; 27 FP-CT after coil-embolization; 8 after aneurysm clipping, these with intravenous application of contrast media) have been reconstructed applying smooth (soft tissue) and sharp (implant) kernels with and without a novel reconstruction filter for metal artifact corr…