NDLI: On optimal current patterns for electrical impedance tomography

Content Provider	IEEE Xplore Digital Library
Author	Demidenko, E. Hartov, A. Soni, N. Paulsen, K.D.
Copyright Year	1964
Abstract	We develop a statistical criterion for optimal patterns in planar circular electrical impedance tomography. These patterns minimize the total variance of the estimation for the resistance or conductance matrix. It is shown that trigonometric patterns (Isaacson, 1986), originally derived from the concept of distinguishability, are a special case of our optimal statistical patterns. New optimal random patterns are introduced. Recovering the electrical properties of the measured body is greatly simplified when optimal patterns are used. The Neumann-to-Dirichlet map and the optimal patterns are derived for a homogeneous medium with an arbitrary distribution of the electrodes on the periphery. As a special case, optimal patterns are developed for a practical EIT system with a finite number of electrodes. For a general nonhomogeneous medium, with no a priori restriction, the optimal patterns for the resistance and conductance matrix are the same. However, for a homogeneous medium, the best current pattern is the worst voltage pattern and vice versa. We study the effect of the number and the width of the electrodes on the estimate of resistivity and conductivity in a homogeneous medium. We confirm experimentally that the optimal patterns produce minimum conductivity variance in a homogeneous medium. Our statistical model is able to discriminate between a homogenous agar phantom and one with a 2 mm air hole with error probability (p-value) 1/1000.
Sponsorship	IEEE Engineering in Medicine and Biology Society
Page Count	11
File Size	803957
Starting Page	238
Ending Page	248
File Format	PDF
ISSN	00189294
Volume Number	52
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Impedance Tomography Electrodes Conductivity Immune system Transmission line matrix methods Electric resistance Electrical resistance measurement Electric variables measurement Voltage trigonometric pattern Conductivity equation design of experiments distinguishability eigenfunction EIT least squares Neumann-to-Dirichlet map
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Statistical Estimation of EIT Electrode Contact Impedance Using a Magic Toeplitz Matrix

Incorporating a-priori information in EIT

Statistical estimation of resistance/conductance by electrical impedance tomography measurements

Distinguishability in impedance imaging

Spatial Sensing Using Electrical Impedance Tomography

Optimal experiments in electrical impedance tomography

Modeling and simulation of Electrical Impedance Tomography (EIT) on ventilated patients with ARDS lungs

Measuring lung resistivity using electrical impedance tomography

Effect of Contact Impedance on the Head Electrical Properties Based on EIT Technology

On optimal current patterns for electrical impedance tomography

Similar Documents

Statistical Estimation of EIT Electrode Contact Impedance Using a Magic Toeplitz Matrix

Incorporating a-priori information in EIT

Statistical estimation of resistance/conductance by electrical impedance tomography measurements

Distinguishability in impedance imaging

Spatial Sensing Using Electrical Impedance Tomography

Optimal experiments in electrical impedance tomography

Modeling and simulation of Electrical Impedance Tomography (EIT) on ventilated patients with ARDS lungs

Measuring lung resistivity using electrical impedance tomography

Effect of Contact Impedance on the Head Electrical Properties Based on EIT Technology

On optimal current patterns for electrical impedance tomography