Method and device for enlarging CT display view field

A field of view, the same technology, applied in the field of expanding the field of view of CT display, can solve the problems of reducing the use efficiency of X-rays, less information, and artifacts

Pending Publication Date: 2017-06-30
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, a part of the CT projection data (raw data) will be truncated, which will result in less information and artifacts in the displayed field of view (DFOV) of the reconstructed CT image
[0003] In order

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  • Method and device for enlarging CT display view field
  • Method and device for enlarging CT display view field
  • Method and device for enlarging CT display view field

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[0014] Specific implementations of the present invention will be described below. It should be noted that in the process of specific descriptions of these implementations, for the sake of concise description, it is impossible for this specification to describe all the features of the actual implementations in detail. It should be understood that, in the actual implementation process of any embodiment, just like in the process of any engineering project or design project, in order to achieve the developer's specific goals and to meet system-related or business-related constraints, Often a variety of specific decisions are made, and this can vary from one implementation to another. Furthermore, it will be appreciated that, while such development efforts may have been complex and lengthy, for those of ordinary skill in the art to which the present disclosure pertains, the disclosures disclosed in this disclosure Some design, manufacturing or production changes based on the techni...

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Abstract

The invention relates to a method and device for enlarging a CT display view field. The method comprises the steps that an intercepted trajectory is extracted from a confidence region adjacent to an intercepted region; and the intercepted trajectory is externally plugged into a complete trajectory.

Description

technical field [0001] The invention relates to the field of CT technology, in particular to a method and a device for expanding a CT display field of view. Background technique [0002] During computed tomography (CT), when a scanned object is too large or placed off-center, a portion of the scanned object will lie outside the detector's coverage area. In this way, a part of CT projection data (raw data) will be truncated, which will result in less information and artifacts in the displayed field of view (DFOV) of the reconstructed CT image. [0003] In order to solve the above-mentioned technical problems, the existing method can increase the bore of the CT, but this needs to redesign the hardware of the CT machine and will reduce the use efficiency of X-rays. Contents of the invention [0004] An embodiment of the present invention provides a method for enlarging the field of view of a CT display, comprising: extracting a truncated track from a credible area adjacent t...

Claims

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Application Information

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IPC IPC(8): A61B6/03
CPCA61B6/03A61B6/463A61B6/5217A61B6/5258
Inventor 曹蹊渺王学礼
Owner GENERAL ELECTRIC CO
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