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A phantom based system to evaluate EIT performance Yasheng Maimaitijiang1, Stephan Bohm2, Obaydah Jaber1, Andy Adler1

Summary: A phantom based system to evaluate EIT performance
Yasheng Maimaitijiang1, Stephan B¨ohm2, Obaydah Jaber1, Andy Adler1
1Systems and Computer Engineering, Carleton University, Ottawa, Canada
2CSEM, Research Centre for Nanomedicine, Landquart, Switzerland
Abstract: This work is motivated by the requirement to generate stable and ac-
curate phantoms on which EIT systems can be calibrated and tested. Such testing
is required in order to quantitatively and reproducibly validate EIT system perfor-
mance. We proposed a phantom system design based on reproducible procedures
with completely characterized and traceable test objects. A robotic system was
used to reproduce predefined positions of targets in a saline filled tank, and a data
analysis system was implemented to evaluate the image reconstruction accuracy and
performance. Using this methodology, three EIT hardware systems were tested and
Keywords: Electrical Impedance Tomography, Calibration, Physical Phantom
1 Introduction
Electrical Impedance Tomography (EIT) shows promise for clinical monitoring during me-
chanical ventilation to provide information on the distribution of ventilation in order to
identify regions of lung collapse, normal ventilation and overdistribution. This work is moti-
vated by the requirement to practically evaluate the accuracy of EIT measurements of such
regional measures. In this work, we focus on EIT accuracy measures of image quality and


Source: Adler, Andy - Department of Systems and Computer Engineering, Carleton University


Collections: Computer Technologies and Information Sciences