We developed coronary artery phantoms that should be of great use for intravascular optical coherence tomography. Our phantoms mimic the OCT signal profile of coronary arteries, show mechanical properties approaching those of real tissue, and are durable.
In this paper, we present an approach toward the creation of coronary artery phantoms for optical coherence tomography
(OCT). By mixing alumina powder in a matrix of transparent silicone, it is expected that the amplitude of the OCT
signal and the soft tissue elasticity can be reproduced. The fabrication process to produce such multiple layer phantoms
is presented along with optical and characterization experiments.
We developed optical tissue phantoms with a novel combination of matrix and scatterers. These phantoms have a well
known scattering microstructure of monodisperse silica microspheres, embedded in elastic silicone. We characterize
their mechanical properties and, some of their optical properties. We also validate the control over the density of
scatterers achieved with our proposed fabrication technique. The properties obtained are a practical combination of
deformability, durability and simplicity of the microstructure. These are illustrated by results on speckle statistics in
optical coherence tomography.
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