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A solid tissue phantom for photon migration studies
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DOI：10.1088/0031-9155/42/10/011.png)
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Abstract
En 中文
A solid tissue phantom made of agar, Intralipid and black ink is described and characterized. The preparation procedure is fast and easily implemented with standard laboratory equipment. An instrumentation for time-resolved transmittance measurements was used to determine the optical properties of the phantom. The absorption and the reduced scattering coefficients are linear with the ink and Intralipid concentrations, respectively. A systematic decrease of the reduced scattering coefficient dependent on the agar content is observed, but can easily be managed. The phantom is highly homogeneous and shows good repeatability among different preparations. Moreover, agar inclusions can be easily embedded in either solid or liquid matrixes, and no artefacts are caused by the solid-solid or solid-liquid interfaces. This allows one to produce reliable and realistic inhomogeneous phantoms with known optical properties, particularly interesting for studies on optical imaging through turbid media.
Keywords:
TIME-RESOLVED REFLECTANCE
MURINE TUMOR-MODEL
OPTICAL TOMOGRAPHY
TURBID MEDIA
GLUCOSE-CONCENTRATION
REPRODUCIBLE PHANTOM
ABSORPTION-SPECTRUM
SIMULATING PHANTOMS
LIGHT-SCATTERING
IN-VIVO
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3.4
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1.4W
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3.1W
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