Metal About the Hip and Artifact Reduction Techniques: From Basic Concepts to Advanced Imaging
نویسندگان
چکیده
منابع مشابه
syngo WARP – Metal Artifact Reduction Techniques in Magnetic Resonance Imaging
■ Through-plane distortion: The local field offset leads to curved and frayed slices instead of the expected flat image plane (Fig. 1). Since both in-plane and through-plane distortions shift image pixels away from their real positions, image geometry appears to be distorted. In both cases, regions with severe field changes will lead to signal voids visible as black spots and signal pileups vis...
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Metal in CT-imaged objects drastically reduces the quality of these images due to the severe artifacts it can cause. Most metal artifacts reduction (MAR) algorithms consider the metal-affected sinogram portions as the corrupted data and replace them via sophisticated interpolation methods. While these schemes are successful in removing the metal artifacts, they fail to recover some of the edge ...
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ژورنال
عنوان ژورنال: Seminars in Musculoskeletal Radiology
سال: 2019
ISSN: 1089-7860,1098-898X
DOI: 10.1055/s-0039-1687898