Search PubMed⌕ Search

PubMed · 15751885

Three-element phased-array approach to diffuse optical imaging based on postprocessing of continuous-wave data.

Abstract

We present a multielement phased-array approach to diffuse optical imaging based on postprocessing of continuous-wave data for the improvement of spatial resolution. In particular, we present a theoretical and experimental analysis of the performance of a three-element source array in the study of an optically turbid medium with two embedded cylindrical inclusions. We find that the proposed phased-array approach is able to resolve two cylinders with side-to-side separation of 10 mm that are not resolved by the intensity associated with a single light source.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Ning Liu, Angelo Sassaroli, Max A Zucker, Sergio Fantini. 2005-02-01. Three-element phased-array approach to diffuse optical imaging based on postprocessing of continuous-wave data.. https://doi.org/10.1364/ol.30.000281

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

Can one gain spectral information plus time by 3D HMBC via back-projection?

The 3D HMBC technique is compared with a time saving technique in which the projection-reconstruction (PR) principle is applied. Using strychnine as an example we demonstrate that after recording essentially three planes of the 3D cuboid a comparable result can be obtained, if certain constraints of the data dimensions are obeyed.

Image Enhancement↗

[Effects of slice thickness and matrix size on MRI for signal detection].

High-resolution MRI with increased matrix size is becoming widely used. When matrix size is increased, the signal-to-noise ratio (SNR) decreases. To compensate for a poor SNR, a thick slice is often used. The purpose of this study was to assess whether slice thickness affects the signal detectability of MR images. Signal detectability was evaluated for various slice thicknesses using a contrast-detail phantom. The results showed that thinning slices led to increased signal detection but to decreased SNR because of higher contrast in the partial volume effect. In addition, increasing matrix size and slice thickness for high-resolution imaging led to a decrease in signal detection. It is necessary to consider voxel form for two-dimensional MR images and to recognize that cuboid voxels lead to increased signal detection.

Image Enhancement↗