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PET detector signal sampling method and device, electronic device and storage medium

A signal sampling and detector technology, applied in the field of medical imaging, can solve the problem of low energy resolution and achieve high energy resolution and low cost

Pending Publication Date: 2021-07-02
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In this embodiment, a PET detector signal sampling method, device, electronic device and storage medium are provided to solve the problem of low energy resolution caused by low-frequency acquisition of the electrical signal of the PET detector in the related art

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  • PET detector signal sampling method and device, electronic device and storage medium
  • PET detector signal sampling method and device, electronic device and storage medium
  • PET detector signal sampling method and device, electronic device and storage medium

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Embodiment Construction

[0039] In order to understand the purpose, technical solution and advantages of the present application more clearly, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments.

[0040] Unless otherwise defined, the technical terms or scientific terms involved in the application shall have the general meanings understood by those skilled in the technical field to which the application belongs. In this application, words like "a", "an", "an", "the", "these" and the like do not denote quantitative limitations, and they may be singular or plural. The terms "comprising", "comprising", "having" and any variants thereof referred to in this application are intended to cover non-exclusive inclusion; for example, processes, methods and The system, product or device is not limited to the steps or modules (units) listed, but may include steps or modules (units) not listed, or may include other steps or modules inherent to the...

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Abstract

The invention relates to a PET detector signal sampling method and device, an electronic device and a storage medium, and the PET detector signal sampling method comprises the steps: obtaining a target electric signal of a PET detector; sampling the target electric signal based on a first time period to obtain a first waveform signal; inputting the first waveform signal into a trained deep learning model to obtain a second waveform signal; and obtaining photon information corresponding to the target electric signal based on the second waveform signal. According to the PET detector signal sampling method and device, the electronic device and the storage medium, the low-frequency waveform signal is converted into the high-frequency waveform signal through the deep learning model, the energy resolution is high when photon information is obtained, and the cost is low.

Description

technical field [0001] The present application relates to the technical field of medical imaging, in particular to a PET detector signal sampling method, device, electronic device and storage medium. Background technique [0002] In the PET system, the PET detector receives the gamma ray, the gamma ray excites the optical signal in the detector crystal, the photoelectric conversion device (SIPM) in the detector converts the optical signal into an electrical signal, and samples the electrical signal. The photon deposition energy is calculated according to the sampled waveform signal. [0003] Traditional PET detectors mostly adopt relatively low-frequency sampling frequency when sampling the electrical signal converted from the optical signal excited by the gamma-ray excitation generated by the electron-positron annihilation event, and complete the calculation of photon information by integrating the low-frequency waveform signal. The use of low-frequency sampling is more fo...

Claims

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Application Information

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IPC IPC(8): A61B6/03
CPCA61B6/037A61B6/4241A61B6/5205G06T11/006G06T2211/441G01T1/20184G06N3/0464G06T2211/444G06T2210/41
Inventor 吕新宇王旭明
Owner SHANGHAI UNITED IMAGING HEALTHCARE
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