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Segmentation and Spectrum Based Metal Artifact Reduction Method and System
Segmentation and Spectrum Based Metal Artifact Reduction Method and System
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机译:基于分割和频谱的金属伪影减少方法及系统
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摘要
A segmentation-and-spectrum-based metal artifact reduction (MAR) system and method is applied in polychromatic X-ray CT system that uses a priori knowledge of high-Z metals in samples which contribute the primary artifacts at a known x-ray energy spectrum. Using a basis materials decomposition, the method solves the problem of reducing or eliminating metal artifacts associated with beam hardening using only a single scan of the sample performed at selected x-ray energy.
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