1 November 2010 Optical system based on time-gated, intensified charge-coupled device camera for brain imaging studies
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Abstract
An imaging system for brain oxygenation based on a time-gated, intensified charge-coupled device camera was developed. It allows one to image diffusely reflected light from an investigated medium at defined time windows delayed with respect to the laser pulse. Applying a fast optomechanical switch to deliver the light at a wavelength of 780 nm to nine source fibers allowed one to acquire images in times as short as 4 s. Thus, the system can be applied in in vivo studies. The system was validated in phantom experiments, in which absorbing inclusions were localized at different depths and different lateral positions. Then, the decrease in absorption of the brain tissue related to increase in oxygenation was visualized in the motor cortex area during finger tapping by a healthy volunteer.
© (2010) Society of Photo-Optical Instrumentation Engineers (SPIE)
Piotr L. Sawosz, Piotr L. Sawosz, Michal Kacprzak, Michal Kacprzak, Norbert S. Zolek, Norbert S. Zolek, Wojciech Weigl, Wojciech Weigl, Stanislaw Wojtkiewicz, Stanislaw Wojtkiewicz, Roman Maniewski, Roman Maniewski, Adam Liebert, Adam Liebert, } "Optical system based on time-gated, intensified charge-coupled device camera for brain imaging studies," Journal of Biomedical Optics 15(6), 066025 (1 November 2010). https://doi.org/10.1117/1.3523366 . Submission:
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