Electronic system, signal processing method thereof and single photon emission computerized tomography imaging equipment

Abstract

The invention discloses a signal processing method of an electronic system for single photon emission computerized tomography imaging. A multi-channel, independent trigger and fully digital electronic scheme is adopted by the method. The signal processing method comprises a multi-channel independent and parallel analog acqusition scheme and a high-integration digital processing scheme. The method specifically comprises the following steps: amplifying and forming a weak signal; performing multi-channel parallel collection; performing digital preprocessing on an analog signal, performing analog-digital conversion, series-parallel conversion, mutually independent trigger signal generation, baseline and gain adjustment and digital processing and transmission. The system realizes a multi-channel analog signal, high-speed, high-quality parallel acqusition scheme. The signal processing method is characterized in that fully parallel processing is performed, the acqusition accuracy is high, the digital processing method is flexible, the speed is high, the configuration parameter is easy to adjust, the upgrading is easy and the like. The invention also discloses the electronic system for the single photon emission computerized tomography imaging and single photon emission computerized tomography imaging equipment.

Description

technical field [0001] The invention belongs to the field of medical technology, and in particular relates to an electronic system for single-photon emission tomography and a signal processing method thereof, as well as a single-photon emission tomography device with the electronic system. Background technique [0002] The purpose of single photon emission tomography equipment is to detect and reconstruct the distribution map of tracers in human organs. This distribution map can reflect the structure of human tissue and corresponding physiological activities. As time changes, this distribution map can also reflect Metabolism of human tissues and organs. The single photon emission tomography system is used in clinical diagnosis and differentiation of tumors, and is also widely used in the diagnosis of thyroid and cardiovascular activity. [0003] Single photon emission tomography system includes subsystems such as detector array, electronic system, mechanical system, reconst...

AI Technical Summary

Problems solved by technology

However, the electronic subsystem in the traditional single photon emission tomography system needs to use a large number of analog circuits to process the signals of multiple photomultiplier tubes, and the system scale is relatively large.

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