Title: Parametric electrical impedance tomography for monitoring bone mineral density in the spine using 3D human model

Authors: Neta Naimark; Shimon Abboud; Marina Arad

Addresses: Department of Biomedical Engineering, Tel Aviv University, Tel Aviv, Israel ' Department of Biomedical Engineering, Tel Aviv University, Tel Aviv, Israel ' Department of Geriatric Rehabilitation, Sheba Medical Centre, Ramat Gan, Israel

Abstract: Monitoring methods of bone mineral density (BMD), the standard measure for osteoporosis diagnosis, are both costly and complex. Since changes in bone permittivity and conductivity values occur due to changes in BMD, they can be used as a simple and inexpensive tool for monitoring BMD. In this work the parametric electrical impedance tomography (pEIT) method for monitoring BMD in the spine using 3D human model is theoretically evaluated. Numerical solver on the forward problem in 3D is used for computing electric potential measured on body surface. Varied spinal BMD are simulated by varying bone relative permittivity and conductivity values which represent different disease stages. The inverse problem is solved by creating a lookup-table of different BMD values.

Keywords: spine bone mineral density; electrical impedance tomography; osteoporosis; simulation study.

DOI: 10.1504/IJMEI.2018.093368

International Journal of Medical Engineering and Informatics, 2018 Vol.10 No.3, pp.279 - 296

Received: 14 Nov 2016
Accepted: 10 Apr 2017
Published online: 25 Jul 2018 *

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