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Updated: Jan 1, 2026
The Frequency Domain Thermoreflectance Technique for Thermal Property Measurements
Published on: December 5, 2025
An improved method for quantitative recovery of conductivity using tomographically measured thermoacoustic data
Zhu Zheng1,2, Yunchao Jiang1,2, Lin Huang1,2
1School of Electronic Science and Engineering (National Exemplary School of Microelectronics), University of Electronic Science and Technology of China, Chengdu, China.
Abstract:
Noninvasive extraction of tissue conductivity distribution is important in brain imaging and cancer detection. Here we present an improved method that can accurately image tissue conductivity using tomographically measured microwave-induced thermoacoustic data. Our reconstruction algorithm is first tested using simulations, and then validated using tissue phantom experiments where saline-containing tubes are used as target(s) with various target sizes, positions and conductivities. The average error of reconstruction for the simulations is reduced from 4.87% to 1.38% compared with the previous algorithm. The experimental results obtained suggest that accurate quantitative thermoacoustic imaging would provide a potential tool for precision medicine.
