Microwave Imaging of Human Forearms: Pilot Study and Image Enhancement

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dc.contributor.authorGilmore, Colin
dc.contributor.authorZakaria, Amer
dc.contributor.authorPistorius, Stephen
dc.contributor.authorLoVetri, Joe
dc.date.accessioned2014-08-14T08:23:59Z
dc.date.available2014-08-14T08:23:59Z
dc.date.issued2013-8-19
dc.date.updated2014-08-14T08:23:59Z
dc.description.abstractWe present a pilot study using a microwave tomography system in which we image the forearms of 5 adult male and female volunteers between the ages of 30 and 48. Microwave scattering data were collected at 0.8 to 1.2 GHz with 24 transmitting and receiving antennas located in a matching fluid of deionized water and table salt. Inversion of the microwave data was performed with a balanced version of the multiplicative-regularized contrast source inversion algorithm formulated using the finite-element method (FEM-CSI). T1-weighted MRI images of each volunteer’s forearm were also collected in the same plane as the microwave scattering experiment. Initial “blind” imaging results from the utilized inversion algorithm show that the image quality is dependent on the thickness of the arm’s peripheral adipose tissue layer; thicker layers of adipose tissue lead to poorer overall image quality. Due to the exible nature of the FEM-CSI algorithm used, prior information can be readily incorporated into the microwave imaging inversion process. We show that by introducing prior information into the FEM-CSI algorithm the internal anatomical features of all the arms are resolved, significantly improving the images. The prior information was estimated manually from the blind inversions using an ad hoc procedure.
dc.description.versionPeer Reviewed
dc.identifier.citationColin Gilmore, Amer Zakaria, Stephen Pistorius, and Joe LoVetri, “Microwave Imaging of Human Forearms: Pilot Study and Image Enhancement,” International Journal of Biomedical Imaging, vol. 2013, Article ID 673027, 17 pages, 2013. doi:10.1155/2013/673027
dc.identifier.doihttp://dx.doi.org/10.1155/2013/673027
dc.identifier.urihttp://hdl.handle.net/1993/23804
dc.language.rfc3066en
dc.rightsopen accessen_US
dc.rights.holderCopyright © 2013 Colin Gilmore et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.titleMicrowave Imaging of Human Forearms: Pilot Study and Image Enhancement
dc.typeJournal Article
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