Washington University

Adam T Eggebrecht

Joseph P Culver

Edward J Richter

Karla Bergonzi

Silvina Ferradal

A wearable device for high-density-diffuse optical tomography includes a plurality of source modules that include source housings containing a light source. The device also includes a plurality of detector modules that include detector housings, a photodiodes, transimpedance amplifiers operatively coupled to the photodiodes, and analog to digital converters operatively coupled to the transimpedance amplifier. Each detector housing contains at least one of the photodiode, the analog to digital converter, and the transimpedance amplifier. Each source and detector housing is configurable to contact a subject's scalp and deliver or receive light from the scalp at one position. The wearable device also includes a control circuit operatively coupled to the plurality of source modules and to the plurality of detector modules to operate the source and detector modules in a coordinated manner to acquire a plurality of diffuse optical tomography measurements.

Small form factor detector module for high density diffuse optical tomography

A system includes a wearable head apparatus and an electronic console. The head apparatus is configured to receive resultant light from the head of a subject. The electronic console includes a fiber array, a detector, and a computing device. The fiber array includes a plurality of fibers configured to transport resultant light received by the head apparatus. The detector includes a plurality of super-pixels each defined by a plurality of pixels of an array of pixels. Each super-pixel is associated with a fiber. Each super-pixel is configured to generate a plurality of detection signals in response to detected resultant light from its associated fiber. The computing device receives the detection signals from each of the plurality of super-pixels. The computing device generates a high density-diffuse optical tomography (HD-DOT) image signal of the brain activity of the subject based on the detection signals from the super-pixels.

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St. Louis, MO, United States of America

Adam T Eggebrecht