Electrical impedance tomography reconstruction for three-dimensional imaging of the prostate.

Physiological Measurement
Andrea BorsicKeith D Paulsen

Abstract

Transrectal electrical impedance tomography (TREIT) has been proposed as an adjunct modality for enhancing standard clinical ultrasound (US) imaging of the prostate. The proposed TREIT probe has an array of electrodes adhered to the surface of a cylindrical US probe that is introduced inside of the imaging volume. Reconstructing TREIT images in the open-domain geometry established with this technique poses additional challenges to those encountered with closed-domain geometries, present in more conventional EIT systems, because of the rapidly decaying current densities at increasing distances from the probe surface. We developed a finite element method (FEM)-based dual-mesh reconstruction algorithm which employs an interpolation scheme for linking a fine forward mesh with a coarse grid of pixels, used for conductivity estimation. Simulation studies using the developed algorithm demonstrate the feasibility of imaging moderately contrasting inclusions at distances of three times the probe radius from the probe surface and at multiple angles about the probe's axis. The large, dense FEM meshes used here require significant computational effort. We have optimized our reconstruction algorithm with multi-core processing hardware and e...Continue Reading

References

Jan 1, 1971·IEEE Transactions on Bio-medical Engineering·D B Geselowitz
Aug 8, 2002·Physics in Medicine and Biology·Jacques JossinetAdrien Matias
Aug 9, 2002·IEEE Transactions on Medical Imaging·Jacques JossinetAmalric Montalibet
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May 14, 2005·IEEE Transactions on Medical Imaging·Manuchehr SoleimaniNick Polydorides
Dec 7, 2005·European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology·I M Gould
Jun 6, 2009·Physiological Measurement·A BorsicK D Paulsen
Aug 18, 2009·The Journal of Urology·Ryan J HalterKeith D Paulsen
Aug 18, 2009·The Journal of Urology·Ryan J HalterKeith D Paulsen

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Citations

Aug 30, 2012·The Analyst·Richard Bayford, Andrew Tizzard
Sep 9, 2015·NeuroImage·Kirill Y AristovichDavid S Holder
Jul 30, 2014·IEEE Transactions on Bio-medical Engineering·Markus JehlDavid Holder
Jan 24, 2017·IEEE Transactions on Medical Imaging·Ethan K MurphyRyan J Halter
May 23, 2017·Physiological Measurement·Ethan K MurphyRyan J Halter
Apr 19, 2018·Physiological Measurement·Ethan K MurphyRyan J Halter
Jun 13, 2019·Physiological Measurement·Bartłomiej GrychtolAndy Adler
May 21, 2016·Physiological Measurement·Bartłomiej GrychtolAndy Adler
Feb 1, 2017·Science Robotics·Raffaele Di GiacomoChiara Daraio
Sep 30, 2021·Physics in Medicine and Biology·M Lehti-PolojärviJ Hyttinen

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