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Image reconstruction for a CT system implementing a dual fan beam helical scan
Image reconstruction for a CT system implementing a dual fan beam helical scan
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机译:用于实现双扇束螺旋扫描的CT系统的图像重建
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摘要
The present invention, in one form, is an apparatus for performing image reconstruction using data obtained by a dual beam helical scan. In reconstructing an image in accordance with the present invention, projection data from each fan beam measurement is weighted by weighting factors to obtain a reconstructed slice. The data arrays selected and weighting factors applied vary depending on the table speed and the detector spacing measured at the axis of gantry rotation, i.e., the detector z spacing.
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