TY - JOUR
T1 - An Instrumental Electrode Configuration for 3-D Ultrasound Modulated Electrical Impedance Tomography
AU - Song, Xizi
AU - Xu, Yanbin
AU - Dong, Feng
AU - Witte, Russell S.
N1 - Funding Information:
Manuscript received March 19, 2017; accepted May 9, 2017. Date of publication May 23, 2017; date of current version November 22, 2017. This work was supported in part by the National Natural Science Foundation of China under Grant 61571321 and Grant 61671322, in part by the Natural Science Foundation of Tianjin under Grant 16JCYBJC18600, and in part by the National Institutes of Health R24MH109060. The associate editor coordinating the review of this paper and approving it for publication was Prof. Manuchehr Soleimani. (Corresponding author: Yanbin Xu.) X. Song, Y. Xu, and F. Dong are with the Tianjin Key Laboratory of Process Measurement and Control, School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China (e-mail: songxizi@tju.edu.cn; xuyanbin@tju.edu.cn; fdong@tju.edu.cn).
Publisher Copyright:
© 2001-2012 IEEE.
PY - 2017/12/15
Y1 - 2017/12/15
N2 - Ultrasound modulated electrical impedance tomography (UMEIT) is a novel hybrid imaging technique, which utilizes coupling between electric and acoustic modalities. Based on the forward solver along different current directions, an instrumental electrode configuration is proposed for 3-D UMEIT. The proposed electrode configuration can produce a similar longitudinal current, making the power density distribution on the $xy$ plane approximately consistent with the corresponding conductivity distribution. Then, this satisfying power density is adopted to reconstruct a higher-resolution conductivity distribution. Therefore, the proposed electrode configuration contributes to improving the image reconstruction quality of UMEIT. Also, to clearly demonstrate its meaning in theory, the forward solver results are analyzed from an electrical point of view. In addition, the nonlinear partial differential equation relating the power density to the measured data is derived again with a more reasonable expression. Finally, simulation with the realistic geometry model of human breast is done and feasibility verifying experiment is made. Both simulation and experimental results validate the feasibility of the proposed electrode configuration.
AB - Ultrasound modulated electrical impedance tomography (UMEIT) is a novel hybrid imaging technique, which utilizes coupling between electric and acoustic modalities. Based on the forward solver along different current directions, an instrumental electrode configuration is proposed for 3-D UMEIT. The proposed electrode configuration can produce a similar longitudinal current, making the power density distribution on the $xy$ plane approximately consistent with the corresponding conductivity distribution. Then, this satisfying power density is adopted to reconstruct a higher-resolution conductivity distribution. Therefore, the proposed electrode configuration contributes to improving the image reconstruction quality of UMEIT. Also, to clearly demonstrate its meaning in theory, the forward solver results are analyzed from an electrical point of view. In addition, the nonlinear partial differential equation relating the power density to the measured data is derived again with a more reasonable expression. Finally, simulation with the realistic geometry model of human breast is done and feasibility verifying experiment is made. Both simulation and experimental results validate the feasibility of the proposed electrode configuration.
KW - Electrode configuration
KW - electrical impedance tomography
KW - image reconstruction
KW - inverse probelm
KW - ultrasound modulated electrical impedance tomography
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U2 - 10.1109/JSEN.2017.2706758
DO - 10.1109/JSEN.2017.2706758
M3 - Article
AN - SCOPUS:85040583935
SN - 1530-437X
VL - 17
SP - 8206
EP - 8214
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 24
M1 - 7932411
ER -