Design and fabrication of an integrated intravascular ultrasound/ photoacoustic scan head

Bao Yu Hsieh*, Sung Liang Chen, Tao Ling, L. Jay Guo, Pai Chi Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations


The combination of intravascular ultrasound and intravascular photoacoustic imaging has been proposed. In this study, we propose a scan head design that is sufficiently small to fit in the tip of the catheter. In addition, the design is also suitable for ultra high frame rate imaging. The scan head consists of a single element, ring-shaped transducer for sideward ultrasound transmission. The transducer has a diameter of 3mm. On acoustic detection, we propose the use of a polymer microring array. For demonstration purposes, a single micro-ring is used with mechanical scanning in this study. For optical illumination, a multimode fiber with a cone-shaped mirror is used. Note that only a single ultrasound/laser pulse is required to acquire an ultrasound/photoacoustic image frame. Phantom imaging results are demonstrated.

Original languageEnglish
Title of host publicationPhotons Plus Ultrasound
Subtitle of host publicationImaging and Sensing 2010
StatePublished - 2010
Externally publishedYes
EventPhotons Plus Ultrasound: Imaging and Sensing 2010 - San Francisco, CA, United States
Duration: 24 01 201026 01 2010

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
ISSN (Print)1605-7422


ConferencePhotons Plus Ultrasound: Imaging and Sensing 2010
Country/TerritoryUnited States
CitySan Francisco, CA


  • Atherosclerotic plaques
  • Intravascular photoacoustic (IVPA) imaging
  • Intravascular ultrasound (IVUS)
  • Polymer micro-ring resonator
  • Ring transducer


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