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Method and device for analyzing heat source intensity and temperature distribution in organism based on point heat source model

A technology of temperature distribution and heat source intensity, which is applied in the field of biomedical analysis and can solve problems such as the inability to obtain the analytical solution of heat distribution, the inability to obtain 3D imaging of the 3D temperature distribution, and the inability to measure the intensity value of the heat source.

Active Publication Date: 2018-03-16
WUBO SCI TECH WUHAN
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Problems solved by technology

[0014] However, the Pennes biological heat conduction equation is a second-order time-dependent partial differential equation, coupled with the complex boundary conditions of the body surface, it is almost impossible to obtain an analytical solution for the heat distribution of this equation
The current existing temperature measurement technology can only measure the temperature distribution on the surface of the organism through the infrared thermal imager, that is, the two-dimensional imaging of the body surface, but cannot achieve three-dimensional imaging to obtain the three-dimensional temperature distribution in the body, let alone measure the temperature distribution related to cell metabolism. Directly related heat source intensity values

Method used

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  • Method and device for analyzing heat source intensity and temperature distribution in organism based on point heat source model
  • Method and device for analyzing heat source intensity and temperature distribution in organism based on point heat source model
  • Method and device for analyzing heat source intensity and temperature distribution in organism based on point heat source model

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Embodiment 1

[0087] Such as Figure 5-6 Described, a kind of device of above-mentioned dual mode thermal tomography, described device is by infrared CCD detector 1, data acquisition unit 2 and computer 3, and infrared CCD detector 1 is connected with data acquisition unit 2 and computer 3 successively, The infrared CCD detector 1 obtains the temperature distribution information on the surface of the living body, and the data acquisition unit 2 collects the temperature data obtained by the infrared CCD detector 1 to the computer 3, and the computer 3 is respectively provided with a heat source analysis unit 3.1 and a user for analyzing the intensity of the heat source. The temperature analysis unit 3.2 is used to analyze the temperature distribution data of the body surface and body of the organism.

Embodiment 2

[0089] Utilize the device of embodiment 1 to carry out the analytical method of heat source intensity and temperature distribution inside the organism,

[0090] Include the following steps:

[0091] 1) Utilize the infrared CCD detector 1 to obtain the temperature distribution data on the surface of the organism, and input the data into the computer 3 through the data acquisition unit 2;

[0092] 2) Utilize the heat source analysis unit 3.1 and the temperature analysis unit 3.2 of the computer 3 to calculate the heat source intensity value q i (x i ,y i ,h i ) and body surface and body temperature distribution, as follows:

[0093] Bring the temperature distribution data on the surface of the organism obtained in step 1) into the expression of the two-dimensional temperature distribution on the body surface, and perform Lorentz (Lorentz) linear fitting of the temperature data to obtain the heat source intensity value q of each point inside the organism i (x i ,y i ,h i ...

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Abstract

The invention discloses a method and a device for analyzing heat source intensity and temperature distribution in an organism based on a point heat source model. The device is composed of an infraredCCD detector, a data acquisition unit and a computer. According to the method and the device provided by the invention, on the basis of a Pennes bioheat conduction equation, an analytic solution of the Pennes equation is obtained through the point heat source model. An organism heat source can be composed of point heat sources which are uniformly distributed; the various point heat sources are subjected to independent heat conduction, so that temperature fields are defined; and a real temperature field is formed by superposing the temperature fields which are formed by the various point heat sources. Surface temperature distribution data of the organism is obtained by virtue of the infrared CCD detector, and based on the surface temperature distribution data, heat source intensity distribution information in the organism is obtained by virtue of a temperature fitting method, so that temperature distribution information in the organism is obtained. According to the heat source intensityand temperature distribution in the organism, functional information which is directly related to metabolism of the organism can be reflected; therefore, objective functional evidences are provided for bio-medical analysis.

Description

technical field [0001] The invention belongs to a method and device for measuring temperature of a living body and analyzing heat produced by cell metabolism, and also belongs to the technical field of biomedical analysis, and specifically refers to a method and a device for analyzing heat source intensity and temperature distribution inside a living body based on a point heat source model. Background technique [0002] The heat transfer and mass transfer related to metabolism in biological tissues and the exchange of matter and energy between organisms and the environment are one of the most basic processes in living systems. People's research on the biological heat transfer phenomenon and the temperature distribution law in the living body involves the heat transfer mechanism and heat transfer characteristics of the living body, and has gradually formed a new interdisciplinary subject - biological heat transfer. Its content involves the heat and mass transfer process from ...

Claims

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Application Information

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IPC IPC(8): A61B5/01
CPCA61B5/015
Inventor 李凯扬
Owner WUBO SCI TECH WUHAN
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