A 2.5-mm diameter probe for photoacoustic and ultrasonic endoscopy.


Journal Article

We have created a 2.5-mm outer diameter integrated photo-acoustic and ultrasonic mini-probe which can be inserted into a standard video endoscope's instrument channel. A small-diameter focused ultrasonic transducer made of PMN-PT provides adequate signal sensitivity, and enables miniaturization of the probe. Additionally, this new endoscopic probe utilizes the same scanning mirror and micromotor-based built-in actuator described in our previous reports; however, the length of the rigid distal section of the new probe has been further reduced to ~35 mm. This paper describes the technical details of the mini-probe and presents experimental results that both quantify the imaging performance and demonstrate its in vivo imaging capability, which suggests that it could work as a mini-probe for certain clinical applications.

Full Text

Duke Authors

Cited Authors

  • Yang, J-M; Chen, R; Favazza, C; Yao, J; Li, C; Hu, Z; Zhou, Q; Shung, KK; Wang, LV

Published Date

  • October 2012

Published In

Volume / Issue

  • 20 / 21

Start / End Page

  • 23944 - 23953

PubMed ID

  • 23188360

Pubmed Central ID

  • 23188360

Electronic International Standard Serial Number (EISSN)

  • 1094-4087

International Standard Serial Number (ISSN)

  • 1094-4087

Digital Object Identifier (DOI)

  • 10.1364/oe.20.023944


  • eng