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An electrically-activated dynamic tissue-equivalent phantom for assessment of diffuse optical imaging systems

Hebden, JC; Brunker, J; Correia, T; Price, BD; Gibson, AP; Everdell, NL; (2008) An electrically-activated dynamic tissue-equivalent phantom for assessment of diffuse optical imaging systems. PHYS MED BIOL , 53 (2) 329 - 337. 10.1088/0031-9155/53/2/002.

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Abstract

A novel design of solid dynamic phantom with tissue-like optical properties is presented, which contains variable regions of contrast which are activated electrically. Reversible changes in absorption are produced by localized heating of targets impregnated with thermochromic pigment. A portable, battery-operated prototype has been constructed, and its optical and temporal characteristics have been investigated. The phantom has been developed as a means of assessing the performance of diffuse optical imaging systems, such as those used to monitor haemodynamic changes in the brain and other tissues. Images of the phantom have been reconstructed using data acquired with a continuous wave optical topography system.

Type:Article
Title:An electrically-activated dynamic tissue-equivalent phantom for assessment of diffuse optical imaging systems
DOI:10.1088/0031-9155/53/2/002
Keywords:NEONATAL HEAD PHANTOM, TOMOGRAPHY, BRAIN, TOPOGRAPHY, SPECTROSCOPY, INFANTS, CORTEX
UCL classification:UCL > School of BEAMS > Faculty of Engineering Science > Computer Science
UCL > School of BEAMS > Faculty of Engineering Science > Medical Physics and Bioengineering

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