초록 ▼

A Computerized Tomographic (CT) helical scanner system including multiple, separate x-ray sources mounted on the same gantry, each irradiating different two-dimensional detectors at any given time to simultaneously acquire data from multiple slices and combining the data obtained from the multiple s

A Computerized Tomographic (CT) helical scanner system including multiple, separate x-ray sources mounted on the same gantry, each irradiating different two-dimensional detectors at any given time to simultaneously acquire data from multiple slices and combining the data obtained from the multiple slices to provide images either of individual slices or combined slices.

대표청구항 ▼

[ What is claimed is:] [1.] A CT scanner system comprising:a gantry,a bed for supporting a scanned subject within an aperture in said gantry,a plurality of x-ray sources mounted on said gantry,a gantry rotation system for revolving said x-ray sources about said subject,an x-ray detector array,said d

[ What is claimed is:] [1.] A CT scanner system comprising:a gantry,a bed for supporting a scanned subject within an aperture in said gantry,a plurality of x-ray sources mounted on said gantry,a gantry rotation system for revolving said x-ray sources about said subject,an x-ray detector array,said detector array comprising an x-ray detector group associated with each of said sources on the side of the subject opposite from said x-ray sources, said detector groups comprising multiple rows of detector elements extending in the axial direction,said detector array detecting x-rays that have originated from the x-ray sources and traversed at least one planar section of said subject to acquire radiation intensity data,a motion system for causing relative motion in an axial direction between said gantry and said subject during the scan so that said data is acquired by said detector array while said x-ray sources revolve about said subject and during the relative motion along said axial direction to provide a helical scan,an image reconstruction system for generating images from said data where said reconstruction system includes a reformatting system for reformatting multiple plane data into single plane data, andsaid reformatting system comprising circuitry for combining data acquired by a given detector element of one row at a given gantry angle with data acquired by another detector element adjacent to the detector element of the said one row at the given gantry angle that is associated with the same x-ray source. [36.] A CT scanner system comprising:a gantry,a bed for supporting a scanned subject within an aperture in said gantry,a plurality of individual x-ray sources non-symmetrically mounted on said gantry spaced apart from each other,a gantry rotation system for revolving said x-ray sources about said subject,an x-ray detector array individual to each of the individual sources comprising a plurality of detector elements for detecting x-rays that have passed through the subject,said detector array detecting x-rays that have originated from the x-ray sources and traversed at least one planar section of said subject to thereby acquire radiation intensity data,a motion system for causing relative motion in an axial direction between said gantry and said subject during the scan so that said data is acquired by said detector array while said x-ray sources revolve about said subject and during the relative motion along said axial direction to provide a helical scan, andan image reconstruction system for generating images from said data where said reconstruction system includes a reformatting system for reformatting a multiple plane data into single plane data.