Post-processing sets of tilted CT volumes as a method for metal artifact reduction

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Post-processing sets of tilted CT volumes as a method for metal artifact reduction

BACKGROUND Metal implants, surgical clips and other foreign bodies may cause 'streaking' or 'star' artifacts in computed tomography (CT) reconstructions, for example in the vicinity of dental restorations or hip implants. The deteriorated image quality complicates contouring and has an adverse effect on quantitative planning in external beam therapy. METHODS The potential to reduce artifacts ...

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A 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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a 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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Metal Artifact Reduction of Dental Fillings in Head and Neck CT Images

Introduction: The issue of metal artifact and its reduction is as old as the clinical use of computed tomography itself. When metal objects such as dental fillings, hip prostheses or surgical clips are present in the computed tomography (CT) field of view (FOV), make severe artifacts that reduce the image quality and accuracy of CT numbers. They can lead to unreliable ...

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Sinogram constrained TV-minimization for metal artifact reduction in CT

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ژورنال

عنوان ژورنال: Radiation Oncology

سال: 2014

ISSN: 1748-717X

DOI: 10.1186/1748-717x-9-114