General Electric Company

Ge Medical Systems Global Technology Company, LLC

Ge Precision Healthcare LLC

Ximiao Cao

Xueli Wang

Jun Li

Bin Wang

Zhenhua Xu

Jiang Hsieh

Shuo Li

Ying Li

Chen Bo Li

Xue Wang

Jiaqin Dong

Bingjie Zhao

Yanling Qu

Weiwei Xing

Li Fang

Exemplary embodiments of the present invention provide a CT imaging method of coronary artery and a computer-readable storage medium, the method comprising: generating and outputting a global optimal phase image of a coronary artery; and generating and outputting a local optimal phase image of a particular trunk of the coronary artery based on a trunk selection command.

CT imaging method of coronary artery and computer readable storage medium

The present application provides an imaging method and system, and a non-transitory computer-readable storage medium. The imaging method comprises preprocessing projection data to obtain a predicted image of a truncated portion; performing forward projection on the predicted image to obtain predicted projection data of the truncated portion; and performing image reconstruction using the projection data obtained by forward projection and projection data of an untruncated portion.

Imaging method and device

The present invention provides an apparatus and a method for enhancing spatial resolution of a CT image and a CT imaging system, the method comprising: acquiring an original CT projection curve; performing deconvolution for projection data on the original CT projection curve in a tube sampling direction or a texture direction of the original CT projection curve; and reconstructing an image according to the projection data after deconvolution.

Apparatus and method for enhancing spatial resolution of CT image and CT imaging system

The present invention provides an apparatus and method for beam hardening artifact correction of CT image, comprising a bone tissue image obtain module, a first correction module, an orthographic projection module, and a correction image obtaining module. The bone tissue image obtain module is used to extract a bone tissue image from a reconstructed original image; the first correction module is used to increase a current CT value of the bone tissue image; the orthographic projection module is used to perform an orthographic projection on the bone tissue image with the CT value being increased to obtain an orthographic projection data of the bone tissue image; the correction image obtaining module is used to perform image reconstruction according to the orthographic projection data of the bone tissue image described above and obtain a correction image.

Apparatus and method for beam hardening artifact correction of CT image

A method for geometric calibration of a CT scanner, including, for each row of at least one row of detector cells, establishing a complete geometric description of the CT scanner, including at least one unknown geometric parameter, establishing a description of a forward projection function using the complete geometric description, acquiring actual projection coordinates of a calibration phantom placed in a scanning field of view (SFOV) on a current row of detector cells and corresponding to a plurality of angles, acquiring calculated projection coordinates of the calibration phantom on the current row of detector cells and corresponding to the plurality of angles using the description of the forward projection function, and acquiring a calibrated value for the at least one unknown geometric parameter by evaluating the at least one unknown geometric parameter based on the acquired actual projection coordinates and calculated projection coordinates via a nonlinear least square fitting algorithm.

Geometry calibration algorithm for large flat module detector CT scanner

A method for automatically determining the best effective reconstruction gap, the method including scanning a phantom to collect image data of the phantom, using a plurality of different gap values to reconstruct image of the phantom respectively, based on the image data, thus obtaining a plurality of images respectively associated with different gap values, selecting the best image from the plurality of images, and automatically determining the gap value associated with the best image, and save it as the best effective reconstruction gap.

CT apparatus and an image processing method used by the same

A computerized tomography (CT) method and CT system. The method comprises projecting a beam from a radiation source within a display field of view (DFOV) toward a subject to be imaged; receiving, at a detector, the projected beam to collect projection data; determining whether in the projection a truncation occurs in which the subject exceeds the DFOV; and recording a truncated location of the projection if truncation occurs.

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Beijing, China

Ximiao Cao