Acquiring method of light response lines in emission imaging device

Abstract

The invention belongs to the field of medical imaging and discloses an acquiring method of light response lines in an emission imaging device. The acquiring method comprises the following steps that 1, energy distribution information of a pair of gamma photons is acquired through a positron emission imaging device, wherein the energy distribution information is acquired in pairs, different pairs of gamma photons are differentiated through a time window, a connection line of a pair of photons is a light response line to be solved, and the connection lines of multiple pairs of gamma photons aresubjected to image reconstruction so that a striograph can be obtained; 2, the light response lines are calculated by using the energy distribution information through a centroid method or an intelligent algorithm. The acquiring method of the light response lines in the emission imaging device improves the acquiring precision of the light response lines, an emission source of gamma rays is positioned, and the acquiring method is simple and high in speed.

Description

technical field [0001] The invention belongs to the field of medical imaging, and more particularly, relates to a method for acquiring light response lines in an emission imaging device. Background technique [0002] Medical Positron Emission Tomography (PET) is a representative product of international advanced medical devices. It is widely used in the early diagnosis, treatment plan formulation and prognosis prediction of tumors, cardiovascular and cerebrovascular diseases and neurodegenerative diseases. and drug efficacy ratings. The traditional emission imaging system consists of multiple independent square-shaped ray detector modules assembled and spliced ​​into a ring structure through mechanical structure, and the detectors are composed of scintillation crystal coupled photoelectric sensors (PMT, SiPM, etc.). By calculating the reaction position of γ photons on a single detector, the light response line information corresponding to the γ event is obtained, and the to...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above defects or improvement needs of the prior art, the present invention provides a method for obtaining the optical response line in the emission imaging device, by obtaining the energy distribution information of a pair of photons on the emission imaging device, and calculating the optical response line based on the energy distribution information Response line, thus solving the technical problems of low accuracy and large error of optical response line acquisition

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