Format

Send to

Choose Destination
IEEE Trans Biomed Eng. 2012 May;59(5):1229-39. doi: 10.1109/TBME.2011.2175731. Epub 2011 Nov 11.

EIT forward problem parallel simulation environment with anisotropic tissue and realistic electrode models.

Author information

1
ARCES, University of Bologna, Bologna, Italy. tdemarco@arces.unibo.it

Abstract

Electrical impedance tomography (EIT) is an imaging technology based on impedance measurements. To retrieve meaningful insights from these measurements, EIT relies on detailed knowledge of the underlying electrical properties of the body. This is obtained from numerical models of current flows therein. The nonhomogeneous and anisotropic electric properties of human tissues make accurate modeling and simulation very challenging, leading to a tradeoff between physical accuracy and technical feasibility, which at present severely limits the capabilities of EIT. This work presents a complete algorithmic flow for an accurate EIT modeling environment featuring high anatomical fidelity with a spatial resolution equal to that provided by an MRI and a novel realistic complete electrode model implementation. At the same time, we demonstrate that current graphics processing unit (GPU)-based platforms provide enough computational power that a domain discretized with five million voxels can be numerically modeled in about 30 s.

PMID:
22086487
DOI:
10.1109/TBME.2011.2175731
[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for IEEE Engineering in Medicine and Biology Society
Loading ...
Support Center