High-Density Diffuse Optical Tomography

Definition: High-Density Diffuse Optical Tomography (HD-DOT) imaging systems use dense, as in “High Density Source-detector Array“, often regularly spaced arrays of near-infrared sources and detectors to obtain overlapping measurements of the underlying hemodynamic activity. Compared to conventional multichannel fNIRS systems, the measurements obtained from source-detector pairs across various increments of neighboring distances facilitate higher spatial resolution and depth profiling. This allows a three-dimensional tomographic spatial reconstruction of cortical activity patterns comparable to those obtained using fMRI. Definition: High-Density Diffuse Optical Tomography (HD-DOT) imaging systems use dense, as in “High Density Source-detector Array“, often regularly spaced arrays of near-infrared sources and detectors to obtain overlapping measurements of the underlying hemodynamic activity. Compared to conventional multichannel fNIRS systems, the measurements obtained from source-detector pairs across various increments of neighboring distances facilitate higher spatial resolution and depth profiling. This allows a three-dimensional tomographic spatial reconstruction of cortical activity patterns comparable to those obtained using fMRI.

Alternative definition:

Synonym:

References: https://doi.org/10.1117/1.NPh.2.2.025005

Related terms: Diffuse Optical Tomography (DOT), Ultra-high density (UHD), High Density (Source-detector Array)

Related Posts