Abstract
Electrical Impedance Tomography (EIT) is a new imaging technique that has the ability to image human body without prolonged exposure to radiations. Developing countries like Sudan suffers from the availability of imaging devices due to its high cost and its danger to health due to the use of ionizing radiation. This problem can be solved by designing a simple and low cost radiation free medical imaging system. We have designed an Arduino-based EIT system for radiation free medical imaging. This system consists of AC voltage generator, Voltage Controlled Current Source, 16 electrodes and an automatic electrode switching module. Control of the system is achieved by Arduino microcontroller which decreases the overall cost of the system while adding simplicity to the design. The system results in 208 voltage measurements which are processed in MATLAB interfaced with EIDORS (Electrical Impedance and Diffuse Optical Tomography Reconstruction Software) software to reconstruct the image. Our EIT system cost and performance are clearly discussed with tables and figures, it costs only about 63.61 $, have percent error of 13.15% and reconstructs images with high resolution making it possible to have an alternative cheap, accurate and simple EIT system for radiation free medical imaging.
Published Version
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