Abstract

We present an optically encoded photoacoustic (PA) flow imaging method based on optical-resolution PA microscopy. An intensity-modulated continuous-wave laser photothermally encodes the flowing medium, and a pulsed laser generates PA waves to image the encoded heat pattern. Flow speeds can be calculated by cross correlation. The method was validated in phantoms at flow speeds ranging from 0.23 to 11mm/s. Venous blood flow speed in a mouse ear was also measured.

© 2014 Optical Society of America

Full Article  |  PDF Article
Related Articles
In vivo photoacoustic imaging of transverse blood flow by using Doppler broadening of bandwidth

Junjie Yao, Konstantin I. Maslov, Yunfei Shi, Larry A. Taber, and Lihong V. Wang
Opt. Lett. 35(9) 1419-1421 (2010)

Fast voice-coil scanning optical-resolution photoacoustic microscopy

Lidai Wang, Konstantin Maslov, Junjie Yao, Bin Rao, and Lihong V. Wang
Opt. Lett. 36(2) 139-141 (2011)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Supplementary Material (2)

» Media 1: MP4 (502 KB)     
» Media 2: MP4 (799 KB)     

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (11)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription