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European Radiology Experimental
Fig. 3 | European Radiology Experimental

Fig. 3

From: Image quality and metal artifact reduction in total hip arthroplasty CT: deep learning-based algorithm versus virtual monoenergetic imaging and orthopedic metal artifact reduction

Fig. 3

Conventional (a), 130-keV monoE (b), conventional with O-MAR (c), 130-keV monoE with O-MAR (d), and DL-MAR (e) images of a patient with unilateral total hip arthroplasty at height of the prosthesis’ femoral stem. In this patient, metal artifacts are reduced on the images with O-MAR, but secondary artifacts are introduced resulting in degradation of cortical bone anterior to the femoral stem (yellow arrow). DL-MAR reduces artifacts without introducing these secondary artifacts. Window: width 1,600, level 400 HU. CT Computed tomography, O-MAR Orthopedic metal artifact reduction, DL-MAR Deep learning-based metal artifact reduction

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