A raw event detection module of an all-digital processing device

Abstract

The invention discloses a primitive event detection module for an all-digital processing unit, relating to the technical field of medical imaging, in particular to the field of positron emission tomography. The primitive event detection module disclosed by the invention is provided with a device, which can judge whether the position and time signal of a gamma photo-event captured by detectors belongs to a valid event by using arrival time triggering and energy discrimination, and if so, latches the position and time signal of the gamma photo-event according to the format of the primitive gamma photo-event characters and outputs the position and time signal. The invention can satisfy the demands for the all-digital processing unit in an all-digital processing positron emission tomography electronic system.

Description

technical field [0001] The invention relates to the technical field of medical imaging, in particular to the field of positron emission tomography. Background technique [0002] Positron Emission Tomography (PET) is a nuclear medicine imaging technique. It can perform real-time, non-invasive and dynamic in vivo imaging of functional information of human tissues at the molecular level, such as physiological and pathological changes, and can be used in early detection, diagnosis, grading, treatment plan formulation, curative effect evaluation and tracking of cancer, etc. , recurrence detection and other aspects have an irreplaceable role. [0003] The basic principle of PET imaging is: injecting radioactive isotopes (such as F 18 etc.) labeled drugs that reach the internal organs and tissues of the human body. Radioactive isotopes release beta particles as they decay. After the beta particle is annihilated in the human body, a pair of gamma photons with opposite directions...

AI Technical Summary

Problems solved by technology

The traditional method is to use multiple separate components to realize these functions, which is bulky, the connection between components is complicated, the detection and debugging are cumbersome, not only the cost is high, but the overall reliability of the system is poor

Due to the single and fixed functions of these separated components, the adjustment and upgradeability of the system functions are poor, and it is difficult to meet the update and development of modern technology and clinical applications.

[0005] These factors have caused the traditional PET imaging equipment to have a complex structure, high design and production costs, and a long production cycle.

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