Compton scattering case recovery method, PET system and computer readable storage medium
A technology of Compton scattering and recovery method, which is applied in the field of imaging equipment and can solve the problems of low recovery accuracy of Compton scattering cases and the like
Active Publication Date: 2020-08-07
SHANGHAI UNITED IMAGING HEALTHCARE
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[0006] Embodiments of the present application provide a method for recovering Compton scattering events, a PET system, and a computer-readable storage medium to at least solve the problem of low recovery accuracy of Compton scattering events in the related art
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[0039]In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0040] Obviously, the accompanying drawings in the following description are only some examples or embodiments of the present application, and those skilled in the art can also apply the present application to other similar scenarios. In addition, it can also be understood that although such development efforts may be complex and lengthy, for those of o...
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The invention relates to a Compton scattering case recovery method, a PET system and a computer readable storage medium. The method comprises the following steps: acquiring an energy value detected bya first photoelectric sensor array and a photoelectric sensor array-scintillation crystal response matrix; according to the photoelectric sensor array-crystal response matrix, determining the position of a first scintillation crystal which corresponds to the energy value detected by the first photoelectric sensor array and detects the photoelectric effect event; and determining a first action point of the Compton scattering case according to the position of the first scintillation crystal and the energy value detected by the first photoelectric sensor array. According to the invention, the problem of low recovery precision of the Compton scattering case in related technologies is solved, and the recovery precision of the Compton scattering case is improved.
Description
technical field [0001] The application relates to the field of imaging equipment, in particular to a method for recovering Compton scattering events, a PET system and a computer-readable storage medium. Background technique [0002] PET is the fastest growing imaging technology in the field of nuclear medicine today, and is widely used in clinical testing. [0003] In the PET system, the back-to-back 511keV monoenergetic photons generated by the annihilation of positron and electrons interact with the detectors at both ends to be detected. Detectors generally use scintillation crystals as light conversion materials, and two kinds of response events occur between the 511keV gamma photon and the crystal: one is the photoelectric effect event, and the energy of the gamma photon is completely deposited through a collision, releasing a large amount of fluorescence The other is the Compton scattering effect event, where gamma photons collide with the outer electrons of crystal at...
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IPC IPC(8): G01T1/29G01T1/202G01T1/208
CPCG01T1/2985G01T1/202G01T1/208
Inventor 吕新宇
Owner SHANGHAI UNITED IMAGING HEALTHCARE