Laminar optical tomography (LOT) is a new technique that combines the advantages of diffuse optical tomography image reconstruction and a microscopy-based setup to allow noncontact imaging with 100–200-μ m resolution effective over depths of 0–2.5 mm. LOT is being developed primarily for multispectral imaging of rat cortex, for which resolving functional dynamics in various layers of the brain’s cortex (to depths of 1500μm) is of increasing interest to neurophysiologists. System design and image reconstruction techniques are described, along with simulation and phantom results that demonstrate the characteristics and limitations of system accuracy and resolution.
© 2004 Optical Society of America
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.3890) Medical optics and biotechnology : Medical optics instrumentation
(170.6900) Medical optics and biotechnology : Three-dimensional microscopy
(170.6960) Medical optics and biotechnology : Tomography
Elizabeth M. C. Hillman, David A. Boas, Anders M. Dale, and Andrew K. Dunn, "Laminar optical tomography:demonstration of millimeter-scale depth-resolved imaging in turbid media," Opt. Lett. 29, 1650-1652 (2004)