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Simultaneous emission of multiple gamma photons for drug time consistent nuclear medicine imaging system and method

A technology of gamma photon and imaging system, which is applied in the field of nuclear medicine imaging to achieve the effect of reducing the requirement of total count, reducing the dose of radionuclides and improving the signal-to-noise ratio

Active Publication Date: 2020-02-07
TSINGHUA UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to solve the above-mentioned PET and SPECT problems in principle. The present invention discloses a multi-gamma photon simultaneous emission of drug time consistent nuclear medicine imaging system and method

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  • Simultaneous emission of multiple gamma photons for drug time consistent nuclear medicine imaging system and method
  • Simultaneous emission of multiple gamma photons for drug time consistent nuclear medicine imaging system and method
  • Simultaneous emission of multiple gamma photons for drug time consistent nuclear medicine imaging system and method

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Embodiment Construction

[0020] A multi-gamma photon simultaneous emission drug time conforming nuclear medicine imaging system and method proposed by the present invention is described in detail in conjunction with the accompanying drawings and embodiments as follows:

[0021] The overall structure of the imaging system of this embodiment is as follows figure 1 As shown, it consists of two detector probes arranged perpendicular to each other on the detection planes, a time coincidence module 3 and a computer platform 4, and each detector probe consists of a parallel hole collimator 1 and a gamma photon detector with time measurement function 2 configuration; wherein each parallel hole collimator 1 is respectively placed on the front end of the corresponding gamma photon detector 2 so that the multi-gamma photons generated by the decay of the radionuclide in the imaging object 5 can only be along the plane perpendicular to the gamma photon detector Directional emission can be detected by the gamma pho...

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Abstract

The invention discloses a multi-gamma photon simultaneously emitting drug time coincidence nuclear medicine imaging system and method, which belongs to the field of nuclear medicine imaging. The system comprises a plurality of detector probes arranged in a non-parallel manner, a time coincidence module and a computer platform. , each detector head is composed of a collimator and a gamma photon detector with time measurement function, detecting multiple gamma photons emitted by radionuclide within a short time constitutes a multi-gamma photon coincidence event; The method calculates the position of the point where the sum of the distances of the projection lines determined by each gamma photon event in the multi-gamma photon coincidence event is the shortest point, which is the position where the radionuclide decays, and accumulates a certain number of multi-gamma photon coincidence events. Events can achieve the acquisition of radionuclide distribution in organisms. The imaging system and method simplifies the reconstruction algorithm, improves the signal-to-noise ratio of the reconstructed image, reduces the demand for total counting of gamma photons, and reduces the radiation risk of patients.

Description

technical field [0001] The invention belongs to the field of nuclear medicine imaging, and in particular relates to a nuclear medicine imaging system and method for simultaneous emission of drugs by multiple gamma photons. Background technique [0002] Nuclear medicine imaging technology is one of the important technical means for disease diagnosis in modern medicine. It uses radionuclide-labeled molecules to participate in the physiological metabolic process of organisms, detects X-rays or gamma photons emitted by radionuclide outside the body and reconstructs the image to obtain the distribution of radionuclide, so that it can be used non-invasively It can be used to observe the organ metabolism of organisms and obtain diagnostic information of diseases. In the field of nuclear medicine imaging, the two most important imaging systems are Positron Emission Tomography (PET) and Single-Photon Emission Computed Tomography (SPECT). Both PET and SPECT have been widely used in ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B6/03
CPCA61B6/037A61B6/4266A61B6/5205A61B6/54A61B6/03A61B6/06A61B6/5282G01T1/161G01T1/17G01T1/29
Inventor 刘亚强马天予范鹏
Owner TSINGHUA UNIV
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