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Perfusion scanning and reconstruction method and device

A perfusion scanning and reconstruction time technology, applied in the medical field, can solve the problem of multiple injections of contrast agents, and achieve the effect of reducing the scanning radiation time, improving the reconstruction time resolution, and reducing the number of times.

Pending Publication Date: 2022-07-01
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Claims
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Problems solved by technology

[0004] The embodiment of the present application provides a method and device for perfusion scanning and reconstruction to at least solve the problem in the related art that perfusion scanning requires multiple injections of contrast agents

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  • Perfusion scanning and reconstruction method and device
  • Perfusion scanning and reconstruction method and device
  • Perfusion scanning and reconstruction method and device

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Embodiment Construction

[0039] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application. In addition, it will also be appreciated that while such development efforts may be complex and lengthy, for those of ordinary skill in the art to which the present disclosure pertains, the techniques disclosed in this application Some changes in design, manufacture or production based on the content are only conventional technical means, and it should not be understood that ...

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Abstract

The invention relates to a perfusion scanning and reconstruction method and device, and the method comprises the steps: selecting a plurality of reconstruction angle ranges from a scanning angle range according to a preset threshold value of reconstruction time resolution; and scanning a scanning object according to the scanning angle range, and performing real-time reconstruction on the projection data obtained by scanning at the starting angles of the plurality of reconstruction angle ranges until the reconstruction of the projection data in the whole reconstruction angle range is completed. By means of the technical scheme, the utilization limit of the scanning angle range can be improved, and the high requirement for the reconstruction time resolution in perfusion scanning can be met.

Description

technical field [0001] The present application relates to the field of medical technology, and in particular, to a method and device for perfusion scanning and reconstruction. Background technique [0002] Perfusion imaging can reflect the blood flow microcirculation law of contrast agents in tissues or lesions, which is of great help in identifying benign and malignant tumors and understanding the blood supply of cerebral ischemia lesions. Therefore, perfusion imaging is widely used in various disease diagnosis. Perfusion imaging mainly includes two stages: perfusion scanning and perfusion reconstruction. Perfusion scanning refers to the process of continuously and rapidly scanning the region of interest and obtaining a series of images after injecting a contrast agent in the body, while perfusion reconstruction refers to the process of using software, etc. The tool determines the time-density change curve of each pixel in the image, so as to calculate the peak time, avera...

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Application Information

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IPC IPC(8): A61B6/03
CPCA61B6/032A61B6/44A61B6/481A61B6/507A61B6/4085A61B6/4441A61B6/5211
Inventor 闫晶冯娟
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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