A Segmentation-Based Method for Metal Artifact Reduction
نویسندگان
چکیده
منابع مشابه
A segmentation-based method for metal artifact reduction.
RATIONALE AND OBJECTIVES We propose a novel segmentation-based interpolation method to reduce the metal artifacts caused by surgical aneurysm clips. MATERIALS AND METHODS Our method consists of five steps: coarse image reconstruction, metallic object segmentation, forward-projection, projection interpolation, and final image reconstruction. The major innovations are 2-fold. First, a state-of-...
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Introduction In CT imaging, metallic implants inside the tissues cause metal artifact that reduce the quality of image for diagnosis. In order to reduce the effect of this artifact, a new method with more appropriate results has been presented in this research work. Materials and Methods The presented method comprised of following steps: a) image enhancement and metal areas extraction, b) sinog...
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1 Laboratory of Image Science and Technology, Southeast University, Nanjing 210096, China 2 Centre de Recherche en Information Biomedicale Sino-Francais (LIA CRIBs), 35042 Rennes, France 3 Laboratoire Traitement du Signal et de l’Image (LTSI) INSERM U642, Université de Rennes I, 35042 Rennes Cedex, France 4 Department of Radiology, General Hospital of Tianjin Medical University, Tianjing 300052...
متن کاملSegmentation of artifacts and anatomy in CT metal artifact reduction.
PURPOSE Metal objects present in x-ray computed tomography (CT) scans are accompanied by physical phenomena that render CT projections inconsistent with the linear assumption made for analytical reconstruction. The inconsistencies create artifacts in reconstructed images. Metal artifact reduction algorithms replace the inconsistent projection data passing through metals with estimates of the tr...
متن کاملa new method for metal artifact reduction in ct scan images
introduction in ct imaging, metallic implants inside the tissues cause metal artifact that reduce the quality of image for diagnosis. in order to reduce the effect of this artifact, a new method with more appropriate results has been presented in this research work. materials and methods the presented method comprised of following steps: a) image enhancement and metal areas extraction, b) sinog...
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ژورنال
عنوان ژورنال: Academic Radiology
سال: 2007
ISSN: 1076-6332
DOI: 10.1016/j.acra.2006.12.015