Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published November 2007 | Published
Journal Article Open

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


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.

Additional Information

© 2007 SPIE. Paper 07320LR received Aug. 10, 2007; revised manuscript received Oct. 16, 2007; accepted for publication Oct. 16, 2007; published online Dec. 18, 2007. This project was sponsored in part by the National Institutes of Health grant numbers R01 NS46214 and R01 EB000712.

Attached Files

Published - 060507_1.pdf


Files (264.3 kB)
Name Size Download all
264.3 kB Preview Download

Additional details

August 22, 2023
October 20, 2023