In-vivo noninvasive temperature measurement method and system capable of correcting errors in real time

Abstract

The invention discloses an in-vivo non-invasive temperature measurement method capable of correcting errors in real time, and the method comprises the following steps: S1, scanning all hot spots of alibrary-selected temperature interval through a nuclear magnetic resonance spectrometer, and building a temperature field distribution map library of all hot spots of a library-selected temperature interval; S2, performing scanning through a nuclear magnetic resonance instrument to obtain a temperature field distribution diagram of a human body thermal therapy area; S3, obtaining accurate temperatures of a plurality of key points of the thermal therapy area as temperature calibration points by using an optical fiber temperature measuring device and adopting a non-invasive technology; and S4, in contrast to the temperature field distribution map library established in the S1; and S3, performing thermal imaging figure number conversion processing on a temperature field distribution figure measured in the S2 to obtain scanning temperature data of each point of the human body thermal therapy area, and performing homodromous error correction on the scanning temperature data by taking a temperature calibration point as a reference standard to obtain accurate temperature data of each point of the human body thermal therapy area. The invention further discloses an in-vivo noninvasive temperature measurement system capable of correcting errors in real time. According to the invention, noninvasive accurate measurement of in-vivo wide-area temperature can be realized.

Description

technical field [0001] The invention relates to the medical field, in particular to a method and system for non-invasive temperature measurement in the body that can correct errors in real time. Background technique [0002] In the field of tumor hyperthermia technology, accurate measurement of the patient's internal temperature is particularly important. At present, existing in vivo hyperthermia instruments cannot accurately measure the internal temperature, and temperature errors seriously affect the precise treatment effect of hyperthermia equipment. Therefore, it is urgent to provide a method for accurate and non-destructive temperature measurement in vivo to solve practical problems. [0003] The current temperature measurement methods are: thermocouple method, optical fiber method, infrared method, thermal paper method, liquid crystal foil method, model substance method, microwave radiation method, and nuclear magnetic resonance method. Among them, only two methods are...

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Problems solved by technology

[0003] The current temperature measurement methods are: thermocouple method, optical fiber method, infrared method, thermal paper method, liquid crystal foil method, model substance method, microwave radiation method, and nuclear magnetic resonance method. Among them, only two methods are suitable for internal anti-electromagnetic interference temperature measurement One is the optical fiber method, which can accurately measure the temperature of certain positions in the body through invasive insertion. Although it is not subject to electromagnetic interference, it can perform multi-point temperature measurement in the body, but due to invasive insertion, it not only increases the patient's Pain and infection risk, and will be restricted by many factors, can not reach any place in the human body (such as liver, lung, kidney and other organs), so it is impossible to obtain temperature information of all positions inside the human body

Another nuclear magnetic resonance method uses magnetic resonance heat source imaging technology combined with big data to calculate through software. Although it can non-invasively obtain temperature information in the human body, this method has large temperature measurement errors and is not conducive to precise temperature control.

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