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Method and apparatus for 3D metal and high-density artifact correction for cone-beam and fan-beam CT imaging
Method and apparatus for 3D metal and high-density artifact correction for cone-beam and fan-beam CT imaging
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机译:用于锥束和扇形束CT成像的3D金属和高密度伪影校正的方法和设备
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摘要
A 3D metal artifacts correction technique corrects the streaking artifacts generated by titanium implants or other similar objects. A cone-beam computed tomography system is utilized to provide 3D images. A priori information (such as the shape information and the CT value) of high density sub-objects is acquired and used for later artifacts correction. An optimization process with iterations is applied to minimize the error and result in accurate reconstruction images of the object.
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