| 摘要 |
A method for reconstructing a planar image slice in a CT scanner having a predetermined reconstruction angle and including a detector array having n rows, n being an integer greater than 1, said method comprising: acquiring X-ray attenuation data from the detector array along a predetermined portion of a helical scan path in the vicinity of an axial position corresponding to the planar image slice, wherein the predetermined portion has an angular extent that is generally equal to the reconstruction angle; and processing the data to reconstruct an image of the slice, using data acquired substantially only along the predetermined portion of the scan path.
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