Infrared thermal imaging for assessing human perspiration and evaluating antiperspirant product efficacy.

In humans, perspiration regulates core body temperature. Therefore, objectively evaluating it is essential for studying sweat gland function and mechanisms, particularly in antiperspirant efficacy studies. Various approaches have been developed for measuring human perspiration and evaluating antiperspirant efficacy, but are unsuitable for robust and routine clinical testing applications.

Multimodal hyperspectral fluorescence and spatial frequency domain imaging for tissue health diagnostics of the oral cavity.

A multimodal, hyperspectral imaging system was built for diagnostics of oral tissues. The system, termed perspectral-luorescence-patial requency omain maging (Hy-F-SFDI), combines the principles of spatial frequency domain imaging, quantitative light fluorescence, and CIELAB color measurement. Hy-F-SFDI employs a compact LED projector, excitation LED, and a 16 channel hyperspectral camera mounted on a custom platform for tissue imaging.

Measurement of signal intensity depth profiles in rat brains with cardiac arrest using wide-field optical coherence tomography.

Three-dimensional (3D) optical coherence tomography (OCT) images of rat brain taken through the thinned skull were measured using quadrature fringe wide-field OCT (QF WF OCT) with a period of 10 min for total measurement time of 210 min stopping blood flow due to cardiac arrest, in order to investigate the potential of OCT to monitor tissue viability in brains. First, spatial resolution degradation was evaluated with QF WF OCT to demonstrate that the axial resolution was 390 microm at a thickness of 1000 microm. After cardiac arrest, the signal intensity in depth profiles increased 2.