Have a personal or library account? Click to login

Design of a drop-in EBI sensor probe for abnormal tissue detection in minimally invasive surgery

Journal of Electrical Bioimpedance
Volume 11 (2020): Issue 1 (January 2020)
By:
Open Access
|Dec 2020

Figures & Tables

Fig.1

The proposed sensor probe aims to assist in the MIS for tissue detection. The probe connects to an EBI meter for measurement and the sensing data is streaming to a laptop for processing and display.
The proposed sensor probe aims to assist in the MIS for tissue detection. The probe connects to an EBI meter for measurement and the sensing data is streaming to a laptop for processing and display.

Fig.2

(A) The model of the electrical bioimpedance measured by the proposed sensor probe; (B) Modelling the low frequency and high frequency current passing through biological tissue.
(A) The model of the electrical bioimpedance measured by the proposed sensor probe; (B) Modelling the low frequency and high frequency current passing through biological tissue.

Fig.3

(A) The electrode pattern; (B) Modelling the EBI sensing of soft tissue with the designed electrode; (C) the current density simulation of the section indicated in (A).
(A) The electrode pattern; (B) Modelling the EBI sensing of soft tissue with the designed electrode; (C) the current density simulation of the section indicated in (A).

Fig.4

The prototype of the sensor probe, which can be grasped by a surgical forceps for measuring the area of interest.
The prototype of the sensor probe, which can be grasped by a surgical forceps for measuring the area of interest.

Fig.5

The experimental setup including an LCR meter, tissue samples and the designed sensor probe which is grasped by a surgical forceps.
The experimental setup including an LCR meter, tissue samples and the designed sensor probe which is grasped by a surgical forceps.

Fig.6

Experimental results of 5 saline solutions in different excitation frequencies with the sensor probe.
Experimental results of 5 saline solutions in different excitation frequencies with the sensor probe.

Fig.7

Experimental results of ex vivo porcine liver tissues including the capacitance and resistance: the blue line indicates the results of normal tissue and the red line indicates the results of the abnormal tissue.
Experimental results of ex vivo porcine liver tissues including the capacitance and resistance: the blue line indicates the results of normal tissue and the red line indicates the results of the abnormal tissue.

Confusion Matrix showing the classification results using the QDA classifier_

AbnormalNormal
Abnormal128
Normal020
DOI: https://doi.org/10.2478/joeb-2020-0013 | Journal eISSN: 1891-5469
Journal RSS Feed
Language: English
Page range: 87 - 95
Submitted on: Sep 22, 2020
Published on: Dec 31, 2020
Published by: University of Oslo
In partnership with: Paradigm Publishing Services
Publication frequency: 1 times per year
Keywords:
Laparoscopic surgery,
drop-in sensor probe,
electrical bioimpedance spectroscopy,
discriminant analysis
Related subjects:
Engineering,
Bioengineering and biomedical engineering,
Biomedical electronics,
Life sciences,
Biophysics,
Medicine,
Biomedical engineering,
Physics,
Spectroscopy and metrology

© 2020 Guanming Zhu, Liang Zhou, Shilong Wang, Pengjie Lin, Jing Guo, Shuting Cai, Xiaoming Xiong, Xiaobing Jiang, Zhuoqi Cheng, published by University of Oslo
This work is licensed under the Creative Commons Attribution 4.0 License.

Previous articleVolume 11 (2020): Issue 1 (January 2020)Next article