![](/images/graphics-bg.png)
Modelling of an Oesophageal Electrode for Cardiac Function Tomography
Joint Authors
Tehrani, J. Nasehi
Jin, C.
McEwan, Alistair L.
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-15
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
There is a need in critical care units for continuous cardiopulmonary monitoring techniques.
ECG gated electrical impedance tomography is able to localize the impedance variations occurring during the cardiac cycle.
This method is a safe, inexpensive and potentially fast technique for cardiac output imaging but the spatial resolution is presently low, particularly for central locations such as the heart.
Many parameters including noise deteriorate the reconstruction result.
One of the main obstacles in cardiac imaging at the heart location is the high impedance of lungs and muscles on the dorsal and posterior side of body.
In this study we are investigating improvements of the measurement and initial conductivity estimation of the internal electrode by modelling an internal electrode inside the esophagus.
We consider 16 electrodes connected around a cylindrical mesh.
With the random noise level set near 0.05% of the signal we evaluated the Graz consensus reconstruction algorithm for electrical impedance tomography.
The modelling and simulation results showed that the quality of the target in reconstructed images was improved by up to 5 times for amplitude response, position error, resolution, shape deformation and ringing effects with perturbations located in cardiac related positions when using an internal electrode.
American Psychological Association (APA)
Tehrani, J. Nasehi& Jin, C.& McEwan, Alistair L.. 2012. Modelling of an Oesophageal Electrode for Cardiac Function Tomography. Computational and Mathematical Methods in Medicine،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-482880
Modern Language Association (MLA)
Tehrani, J. Nasehi…[et al.]. Modelling of an Oesophageal Electrode for Cardiac Function Tomography. Computational and Mathematical Methods in Medicine No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-482880
American Medical Association (AMA)
Tehrani, J. Nasehi& Jin, C.& McEwan, Alistair L.. Modelling of an Oesophageal Electrode for Cardiac Function Tomography. Computational and Mathematical Methods in Medicine. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-482880
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-482880