Imaging of venous valves with photoacoustics

Nienke Bosschaart; Roy Kolkman; Ton van Leeuwen; Wiendelt Steenbergen

doi:10.1117/12.647431

6 March 2006 Imaging of venous valves with photoacoustics

Nienke Bosschaart, Roy Kolkman, Ton van Leeuwen, Wiendelt Steenbergen

Proceedings Volume 6086, Photons Plus Ultrasound: Imaging and Sensing 2006: The Seventh Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics; 60860O (2006) https://doi.org/10.1117/12.647431
Event: SPIE BiOS, 2006, San Jose, California, United States

Abstract

We report results of a feasibility study regarding the question whether or not venous valves can be imaged using photoacoustics, and how they will appear in the images. First an in vitro study was made on tissue phantoms consisting of blood filled rubber tubes with discontinuities in the inner tube wall. We also have studied superficial veins on the ventral side of the wrist. For excitation, an Nd:YAG laser at 1064 nm was used. Detection of acoustic signals was performed with a PVdF sensor consisting of two concentric rings. Measurements were performed on valves which where first localized by palpation. The phantom studies showed that irregular structures of the tube walls could clearly be identified from the photoacoustic images. Furthermore, in a photoacoustic image of a vein at the dorsal side of the wrist, the presence of a valve could be identified from a region of increased signal intensity within the vessel lumen.

Citation Download Citation

Nienke Bosschaart, Roy Kolkman, Ton van Leeuwen, and Wiendelt Steenbergen "Imaging of venous valves with photoacoustics", Proc. SPIE 6086, Photons Plus Ultrasound: Imaging and Sensing 2006: The Seventh Conference on Biomedical Thermoacoustics, Optoacoustics, and Acousto-optics, 60860O (6 March 2006); https://doi.org/10.1117/12.647431

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available