Simulated measurement of heat field distribution in microwave solidification treatment of liver tumor
A measurement method and technology for liver tumors, applied in the field of microwave radiation thermal field measurement, can solve the problem that the temperature of microwave three-dimensional thermal field cannot be measured and known.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0020] The design idea of the present invention is to use the finite element analysis method to solve the microwave radiation energy (SAR-Specific Absorption Rate) absorbed by the unit (liver tumor) tissue per unit time, and simulate the dynamics of implantable microwave coagulation treatment of liver and liver tumors by computer. 3D thermal field.
[0021] To solve SAR, according to the simplified Pennes equation:
[0022] ρcdT / dt=Qr+KΔT-M b C b (T-T b )=SAR+KΔT-M b C b (T-T b )
[0023] Where: ρ is tissue density (kg m -3 ), c is the specific heat, T is the temperature, t is the time, K is the thermal conductivity of the tissue (W m -1 ·℃ -1 ), M b 、C b Respectively, blood perfusion rate (kg m -3 ·s -1 ) and specific heat (J·kg -1 ·℃ -1 ), T b is the arterial blood temperature (°C) in the area, and it can be seen that the SAR value at a point can be obtained by measuring the temperature change rate at a point.
[0024] Therefore, based on experience, first...
PUM
Property | Measurement | Unit |
---|---|---|
diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com