CT imaging apparatus and method, and X-ray transceiving component for CT imaging apparatus

An X-ray transceiving component for a CT imaging apparatus, comprising:

• a plurality of X-ray emitters configured to emit quadrate-tapered or fan-shaped X-ray beams;
• a plurality of detector devices configured to receive the quadrate-tapered or fan-shaped X-ray beams emitted by said plurality of X-ray emitters, the quadrate-tapered or fan-shaped X-ray beams comprising X-rays passing through a scanning field of view, wherein said plurality of detector devices are configured to receive X-rays passing through different areas within the scanning field of view, said plurality of X-ray emitters comprise micro-focus X-ray emitters, and said plurality of detector devices comprise flat panel detectors or photoelectric coupling detectors, wherein said plurality of X-ray emitters correspond to said plurality of detector devices respectively and each detector device of said plurality of detector devices is configured to receive the quadrate-tapered or fan-shaped X-ray beams emitted by a corresponding X-ray emitter of said plurality of X-ray emitters, and wherein said plurality of detector devices comprises a first detector device, a second detector device, and a third detector device and said plurality of X-ray emitters comprises a first X-ray emitter, a second X-ray emitter, and a third X-ray emitter;
• and
• a first supporting member and a second supporting member;
• said first supporting member comprises an upper supporting surface and a lower supporting surface, said first detector device is provided on said lower supporting surface of said first supporting member, said first X-ray emitter and said second X-ray emitter are separately provided at two sides of said upper supporting surface of said first supporting member;
• said second supporting member comprises an upper supporting surface and a lower supporting surface, said third X-ray emitter is provided on said lower supporting surface of said second supporting member, said second detector device and said third detector device are separately provided at two sides of said upper supporting surface of said second supporting member;
• said first detector device provided on said lower supporting surface of said first supporting member is opposite to said third X-ray emitter provided on said lower supporting surface of said second supporting member so as to be capable of receiving the quadrate-tapered or fan-shaped X-ray beams emitted by said third X-ray emitter provided on said lower supporting surface of said second supporting member;
• and
• said second detector device and said third detector device provided on said upper supporting surface of said second supporting member are respectively opposite to said first X-ray emitter and said second X-ray emitter provided on said upper supporting surface of said first supporting member so as to be capable of receiving the quadrate-tapered or fan-shaped X-ray beams emitted by said first X-ray emitter and said second X-ray emitter provided on said upper supporting surface of said first supporting member respectively.

A CT imaging method, comprising the steps of:

• determining a resolution of an image needing to be formed according to a diagnosis type;
• controlling a CT imaging apparatus to perform imaging scan, comprising:
• controlling all or part of a plurality of X-ray emitters of the CT imaging apparatus to emit quadrate-tapered or fan-shaped X-ray beams to a scanned object according to said diagnosis type, said CT imaging apparatus further comprising a plurality of detector devices, said plurality of detector devices corresponding to said plurality of X-ray emitters and being configured to receive the quadrate-tapered or fan-shaped X-ray beams emitted by corresponding X-ray emitters of said plurality of X-ray emitters, each quadrate-shaped or fan-shaped X-ray beam comprising X-rays passing through a scanning field of view, wherein said plurality of detector devices are configured to receive X-rays passing through different areas within the scanning field of view, said plurality of X-ray emitters comprise micro-focus X-ray emitters, and said plurality of detector devices comprise flat panel detectors or photoelectric coupling detectors;
• collecting image data from said plurality of detector devices corresponding to all or part of said plurality of X-ray emitters and storing said image data;
• and
• determining an image reconstruction mode according to the determined resolution and reconstructing an image in the determined image reconstruction mode, said image reconstruction mode comprising a first image reconstruction mode and a second image reconstruction mode;
• said first image reconstruction mode comprising:
• dividing the stored image data into data blocks and reconstructing the image according to said data blocks, each data block comprising data obtained by fusing data of a plurality of pixel points;
• said second image reconstruction mode comprising:
• reconstructing the image according to data of all pixel points in the stored image data.