Method and system for measuring in-vivo temperature by using non-invasive technology

Abstract

The invention discloses a method for measuring in-vivo temperature by using a non-invasive technology. The method comprises the following steps: S1, obtaining accurate temperature of a plurality of key points of a human body thermal therapy area as a temperature calibration point and a reference benchmark by using an optical fiber temperature measuring device and using the non-invasive technology;S2, performing scanning by utilizing a nuclear magnetic resonance instrument to obtain a temperature field distribution diagram of the human body thermal therapy area; and S3, finding the temperaturecalibration point selected in the step S1 in the temperature field distribution diagram obtained through scanning in the step S2, and calculating the temperature relationship between hot spots in thetemperature field distribution diagram and the thermal imaging data of the temperature calibration point through comparison, and calculating the accurate temperature values of the hot spots in the thermal therapy area by taking the accurate temperature value corresponding to the temperature calibration point as a reference. The invention also discloses a system for measuring the in-vivo temperature by using the non-invasive technology. By combining the nuclear magnetic resonance thermal imaging technology and the optical fiber temperature measurement technology, noninvasive accurate measurement of the wide-area temperature in the body is achieved, and the pain of a patient is greatly relieved.

Description

technical field [0001] The invention relates to the medical field, in particular to a method and a system for measuring body temperature using a non-invasive technique. Background technique [0002] 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 nuclear magnetic resonance method, which 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, due to the lack of an accurate temperature reference system in the body, according to the body surface temperature and scanning thermal imaging data The accuracy of the calculated body ...

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Problems solved by technology

[0002] 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 nuclear magnetic resonance method, which 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, due to the lack of an accurate temperature reference system in the body, according to the body surface temperature and scanning thermal imaging data The accuracy of the calculated body temperature is poor; another optical fiber method can accurately measure the temperature of certain positions in the body through invasive insertion. Although it is not subject to electromagnetic interference and can perform multi-point temperature measurement in the body, due to invasive Not only does it increase the patient's pain and infection risk, but it is also restricted by many factors and cannot reach any part of the human body (such as inside the liver, lungs, kidneys, etc.), so it is impossible to obtain temperature information of all positions inside the human body

[0003] In the field of tumor hyperthermia technology, it is particularly important to accurately measure the temperature in the patient's body. At present, all existing in vivo hyperthermia instruments cannot accurately measure the body temperature. The temperature error seriously affects the precise treatment effect of the hyperthermia equipment. Therefore, it is urgent It is necessary to provide a method for accurate and non-destructive temperature measurement in the body to solve the above problems

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