Holographic diffusers for endoluminal-scale optical ultrasound imaging.

ABSTRACT:

Significance

Freehand optical ultrasound (OpUS) is an emerging imaging modality that utilizes arrays of fiber-optic, photoacoustical ultrasound sources, and a single fiber-optic detector to perform pulse-echo ultrasound imaging in real time and at video rate. The freehand OpUS imaging probes presented to date have utilized either flat-cleaved optical fibers to generate an array of small, circular sources, or featured an additional array of eccentric optical waveguides to generate elliptical sources that improve ultrasound directivity. However, the incorporation of waveguides imposed severe restrictions on the size of the sources, the source pitch within the array, and the overall size of the imaging probe, and ultimately limited achievable image quality and clinical utility of free

SUBMITTER: Watt FT 

PROVIDER: S-EPMC12827196 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature