Non-contact small animal fluorescence imaging system for simultaneous multi-directional angular-dependent data acquisition

Jong Hwan Lee, Hyun Keol Kim, Chandhanarat Chandhanayingyong, Francis Young-In Lee, Andreas H. Hielscher
2014 Biomedical Optics Express  
We present a novel non-contact small animal fluorescent molecular tomography (FMT) imaging system. At the heart of the system is a new mirror-based imaging head that was designed to provide 360-degree measurement data from an entire animal surface in one step. This imaging head consists of two conical mirrors, which considerably reduce multiple back reflections between the animal and mirror surfaces. These back reflections are common in existing mirror-based imaging heads and tend to degrade
more » ... quality of raw measurement data. In addition, the introduction of a novel ray-transfer operator allows for the inclusion of the angular dependent data in the image reconstruction process, which results in higher image resolution. We describe in detail the system design and implementation of the hardware components as well as the transport-theory-based image reconstruction algorithm. Using numerical simulations, measurements on a well-defined phantom and a live animal, we evaluate the system performance and show the advantages of our approach.
doi:10.1364/boe.5.002301 pmid:25071965 pmcid:PMC4102365 fatcat:ha4x76tfz5hw5kg77t7o6rxcs4