Share Email Print
cover

Journal of Biomedical Optics • Open Access

Photoacoustic tomography of a rat cerebral cortex with a ring-based ultrasonic virtual point detector

Paper Abstract

We image a rat cerebral cortex in situ by using a ring-based ultrasonic virtual point detector developed previously. Compared to the image generated by a finite-aperture detector, the image generated by the virtual point detector has a uniformly distributed resolution throughout the imaged area, owing to the lack of aperture effect of the ultrasonic detector. At the periphery of the image, the signal-to-noise ratio of the image obtained by the virtual point detector is also better than that of a finite-aperture detector. Furthermore, the virtual point detector can be scanned inside the brain to improve the local signal-to-noise ratio.

Paper Details

Date Published: 1 November 2007
PDF: 3 pages
J. Biomed. Opt. 12(6) 060507 doi: 10.1117/1.2823076
Published in: Journal of Biomedical Optics Volume 12, Issue 6
Show Author Affiliations
Xinmai Yang, Washington Univ. in St. Louis (United States)
Lihong V. Wang, Washington Univ. in St. Louis (United States)


© SPIE. Terms of Use
Back to Top