A Sensor for Detection of Breast Tumor with Three-dimensional Electrical Impedance Tomography
10.19756/j.issn.0253-3820.231064
- VernacularTitle:基于三维电阻抗层析成像的乳腺癌传感器的设计
- Author:
Kai LIU
1
;
An-Qi LI
;
Fang LI
;
Cheng-Jun ZHU
;
Hang TIAN
;
Jia-Feng YAO
Author Information
1. 南京航空航天大学机电学院,南京 210016
- Keywords:
Electrical impedance tomography;
Sensor;
Breast tumor;
Numerical simulation
- From:
Chinese Journal of Analytical Chemistry
2024;52(2):248-255,中插16-中插18
- CountryChina
- Language:Chinese
-
Abstract:
An intensive breast array sensor was designed based on three-dimensional electrical impedance tomography in this work.Firstly,an electrical impedance sensor for detection of breast cancer was developed.The sensor adopted the integrated design of excitation electrode array and ground electrode to achieve structural simplification.It realized electric field densification through conical matrix and double-layer circumferentially arranged electrode array and improved the detection accuracy of target object through taper optimization.Secondly,the imaging system was designed,and the sensor was optimized by numerical simulation.The simulation results showed that halving the number of electrodes did not affect imaging accuracy of the sensor,but could improve the imaging speed.Finally,the performance of the sensor was verified by experiment.The signal-to-noise ratio and channel consistency of the system were at a good level.The sensor was used to reconstruct three-dimensional image of the experimental model with relative volume of the detection field of 0.4%.The image correlation coefficient of the single target imaging was above 0.6 and the position of the double target object could be clearly identified,and thus the visual detection of breast cancer was realized.
