Abstract

Doppler optical coherence tomography (OCT) can image tissue structure and blood flow at micrometer-scale resolution but has limited imaging depth. We report a novel, linear-scanning, needle-based Doppler OCT system using angle-polished gradient-index or ball-lensed fibers. A prototype system with a 19-guage (diameter of 0.9mm) echogenic needle is constructed and demonstrates in vivo imaging of bidirectional blood flow in rat leg and abdominal cavity. To our knowledge, this is the first demonstration of Doppler OCT through a needle probe in interstitial applications to visualize deeply situated microcirculation.

© 2005 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Graded-index fiber lens proposed for ultrasmall probes used in biomedical imaging

Youxin Mao, Shoude Chang, Sherif Sherif, and Costel Flueraru
Appl. Opt. 46(23) 5887-5894 (2007)

A forward-imaging needle-type OCT probe for image guided stereotactic procedures

Chia-Pin Liang, Jeremiah Wierwille, Thais Moreira, Gary Schwartzbauer, M. Samir Jafri, Cha-Min Tang, and Yu Chen
Opt. Express 19(27) 26283-26294 (2011)

Imaging needle for optical coherence tomography

Xingde Li, Christian Chudoba, Tony Ko, Costas Pitris, and James G. Fujimoto
Opt. Lett. 25(20) 1520-1522 (2000)

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

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 (3)

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

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