Photoacoustic blood vessel detection during surgical laser interventions

Jens Horstmann; Alexander Baade; Ralf Brinkmann

doi:10.1117/12.889635

8 June 2011 Photoacoustic blood vessel detection during surgical laser interventions

Jens Horstmann, Alexander Baade, Ralf Brinkmann

Proceedings Volume 8092, Medical Laser Applications and Laser-Tissue Interactions V; 80920Z (2011) https://doi.org/10.1117/12.889635
Event: European Conferences on Biomedical Optics, 2011, Munich, Germany

Abstract

This paper presents a discussion about the potential of photoacoustics with regard to its application in surgical assistance during minimally invasive, laser assisted interventions. Aim of the work is the detection of obscured large blood vessels in order to prevent unintentional dissection. Based on spectroscopic investigations of the target tissue (liver), a wavelength for the photoacoustic excitation laser was chosen with respect to a high absorption contrast between the vessel and the surrounding liver tissue. An experimental setup featuring a simple liver model is created. Preliminary results show, that vessels with a diameter of 2 mm can be detected up to a distance of 1 mm from the treatment fibre. It is shown, that detection of acoustic waves induced inside liver is feasible over distances higher than 10 cm.

Citation Download Citation

Jens Horstmann, Alexander Baade, and Ralf Brinkmann "Photoacoustic blood vessel detection during surgical laser interventions", Proc. SPIE 8092, Medical Laser Applications and Laser-Tissue Interactions V, 80920Z (8 June 2011); https://doi.org/10.1117/12.889635

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