Multi-source multi-detector combined CT system and method

Abstract

The invention provides a multi-source multi-detector combined CT system. The system includes a plurality of sets of radiation imaging devices, a data processing unit, a control unit, a rotating machine rack, and a scanning bed; and wherein, each set of the radiation imaging devices includes a detector and a corresponding X-ray source, and at least two of the plurality of sets of radiation imagingdevices are different types of detectors. Based on the multiple radiation imaging devices of the different detectors, the multi-source multi-detector combined CT system is combined, more accurate imaging can be achieved, the comprehensive performance of CT imaging is improved, and mutual calibration, scatter correction, artifact removal, and system image optimization design can be achieved; and atthe same time, by controlling configuration and a scanning mode of different radiation imaging devices, the CT system can be used for the CT Imaging with different, and through combination of a radiation imaging technology of the different types of detectors, and large volume, multi-energy and multi-source precision ultra-fast CT imaging is achieved.

Description

technical field [0001] The present disclosure relates to the field of computed tomography, and in particular to a multi-source and multi-detector combined CT system and method. Background technique [0002] Computed tomography (CT) technology is a technology that uses the attenuation characteristics of X-rays to penetrate objects for scanning imaging. Advanced CT technology, especially large-volume (wide-body), multi-energy, multi-source ultrafast CT imaging, etc., is developing rapidly in the fields of medicine and security inspection, and has broad application prospects. With the continuous development of CT technology, X-ray machines, detectors and other technologies, people's requirements for image accuracy and quality of CT imaging are constantly improving, and CT technology is also constantly improving. [0003] CT based on a single type of detector has its inherent shortcomings, and even if multi-source CT is used, it can only improve the performance of scanning spee...

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Problems solved by technology

[0003] CT based on a single type of detector has its inherent shortcomings, and even if multi-source CT is used, it can only improve the performance of scanning speed and imaging time resolution, but it has no effect on hardening artifacts, discrimination, resolution, etc. Improvement, CT comprehensive performance improvement is limited

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