Towards non-invasive imaging of surgical suture degradation with photoacoustic microscopy

Jordi Morales-Dalmau; Juan Aguirre; Lutz Funk; Francesc Jara; Pau Turon; Turgut Durduran

doi:10.1117/12.2183278

16 July 2015 Towards non-invasive imaging of surgical suture degradation with photoacoustic microscopy

Jordi Morales-Dalmau, Juan Aguirre, Lutz Funk, Francesc Jara, Pau Turon, Turgut Durduran

Proceedings Volume 9539, Opto-Acoustic Methods and Applications in Biophotonics II; 95390B (2015) https://doi.org/10.1117/12.2183278
Event: European Conferences on Biomedical Optics, 2015, Munich, Germany

Abstract

The characterization of the degradation of surgical sutures (~500 μm diameter) up to ~9 mm in tissue phantoms and up to ~3 mm depth in euthanized mice, and its potential application in in vivo animals is demonstrated using a custom dark-field photo-acoustic microscope (PAM). By using a simple theoretical approach and modelling the characteristics of our ultrasound transducer, both theoretical and experimental observations are in good agreement. The implications of this work for industrial applications are discussed by comparing the measurements with an optical microscope and with a developed algorithm on tissue simulating phantoms and with ex vivo measurements using PAM.

Citation Download Citation

Jordi Morales-Dalmau, Juan Aguirre, Lutz Funk, Francesc Jara, Pau Turon, and Turgut Durduran "Towards non-invasive imaging of surgical suture degradation with photoacoustic microscopy", Proc. SPIE 9539, Opto-Acoustic Methods and Applications in Biophotonics II, 95390B (16 July 2015); https://doi.org/10.1117/12.2183278

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KEYWORDS

Photoacoustic spectroscopy

Transducers

Ultrasonography

Imaging systems

Tissue optics

Tissues

In vivo imaging

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