CT imaging system and imaging method thereof

A technology of CT imaging and imaging methods, applied in medical science, equipment for radiological diagnosis, diagnosis, etc., can solve the problem of not meeting the quality requirements of clear imaging of moving organs or tissues, and cannot fundamentally eliminate motion artifacts, etc. problem, achieve the effect of improving temporal resolution, clear CT image, and reducing scanning time

Pending Publication Date: 2020-09-15
江苏一影医疗设备有限公司
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Problems solved by technology

Although the CT scan speed has improved a lot, it still cannot fundamentally eliminate motion a

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  • CT imaging system and imaging method thereof
  • CT imaging system and imaging method thereof
  • CT imaging system and imaging method thereof

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Here, it should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the solution of the present invention are shown in the drawings, and the steps related to the present invention are omitted. Invent other details that don't really matter.

[0031] Additionally, it should be noted that the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also Other elements not expressly listed, or inherent to the process, method, article, or apparatus are also included.

[00...

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Abstract

The invention provides a CT imaging system and an imaging method thereof. The CT imaging system is used for CT scanning imaging of a to-be-scanned body. The CT imaging system comprises a plurality ofimage chains annularly arranged on the peripheral side of the to-be-scanned body, wherein the to-be-scanned body and the plurality of image chains can rotate relatively; the image chains comprise raysource-detector groups and collimators arranged in one-to-one correspondence with the ray source-detector groups, and the collimators are arranged between a ray source and detectors so as to remove scattered rays between every two ray source-detector groups and scattered rays in the ray source-detector groups. According to the CT imaging system, the plurality of image chains are arranged, data acquisition can be performed on the to-be-scanned object at the same time, and then a complete scanning image and a partial scanning image of the to-be-scanned object are acquired separately, so that thescanning time of the CT imaging system is shortened, the time resolution of the CT imaging system is effectively improved, and then the CT imaging system is suitable for scanning imaging of moving organs or tissues.

Description

technical field [0001] The invention relates to a CT imaging system and an imaging method thereof, belonging to the technical field of computerized tomography images. Background technique [0002] The traditional CT imaging method is to use the method of rotating the scanned object or the rotation of the ray source and the detector to obtain the projection data of the scanned object at various angles, and then calculate the CT image through the reconstruction algorithm. Traditional CT can be considered as a slow CT, so the object cannot move during the rotation, otherwise it will cause serious motion artifacts in the reconstructed image. [0003] For the imaging of moving organs or tissues, such as heart imaging, the use of slow CT imaging methods will inevitably produce more motion artifacts. In order to achieve clear imaging of moving organs or tissues, it is usually achieved by increasing the scanning speed and improving the time resolution of the CT imaging system in th...

Claims

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Application Information

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IPC IPC(8): A61B6/03
CPCA61B6/032A61B6/44A61B6/4429A61B6/503A61B6/5205
Inventor 奚岩
Owner 江苏一影医疗设备有限公司
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