Microwave bone imaging: experimental evaluation of calcaneus bone phantom and imaging prototype
Date
2020-12-14Author
Amin, Bilal
Sheridan, Colin
Kelly, Daniel
O'Halloran, Martin
Elahi, Muhammad Adnan
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Amin, Bilal, Sheridan, Colin, Kelly, Daniel, O'Halloran, Martin, & Elahi, Muhammad Adnan. (2020). Microwave bone imaging: experimental evaluation of calcaneus bone phantom and imaging prototype. Paper presented at the IEEE MTT-S International Microwave Biomedical Conference (IMBioC 2020), Toulouse, France, Virtual conference, 14-17 December.
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Abstract
Microwave imaging (MWI) can be used as an
alternate imaging modality for monitoring bone health.
Evaluation and characterization of MWI prototype is a precursor
step before in vivo investigation of bone dielectric properties. This
paper presents experimental evaluation of a novel two layered
simplified cylindrical shaped 3D printed human calcaneus bone
phantom along with corresponding MWI prototype designed to
image the bone phantom. The shape of the calcaneus bone was
approximated with a cylinder. The external and internal layers
represent cortical bone and trabecular bone respectively. Each
layer of the phantom was filled with respective liquid tissue
mimicking mixture (TMM). A MWI prototype was designed
having six microstrip antennas in order to hold calcaneus bone
phantom. The bone phantom was placed in the imaging prototype
and scattered signals were measured at each antenna. Moreover,
the performance of the system was explored by examining
microwave measurement sensitivity. Based on the measured
scattered signals the map of dielectric properties will be
constructed by employing MWI algorithm and will be
communicated in our future work. This two layered 3D printed
human calcaneus bone phantom and imaging prototype can be
used as a valuable test platform for pre-clinical assessment of
calcaneus bone imaging for monitoring osteoporosis.