Photoacoustic image guidance for laser tonsil ablation: approach and initial results

Nicholas E. Pacheco; Shang Gao; Kevin Cleary; Rahul Shah; Haichong Zhang; Loris Fichera

doi:10.1117/12.3007295

29 March 2024 Photoacoustic image guidance for laser tonsil ablation: approach and initial results

Nicholas E. Pacheco, Shang Gao, Kevin Cleary, Rahul Shah, Haichong Zhang, Loris Fichera

Proceedings Volume 12928, Medical Imaging 2024: Image-Guided Procedures, Robotic Interventions, and Modeling; 129281A (2024) https://doi.org/10.1117/12.3007295
Event: SPIE Medical Imaging, 2024, San Diego, California, United States

Abstract

Tonsillectomy, one of the most common surgical procedures worldwide, is often associated with postoperative complications, particularly bleeding. Tonsil laser ablation has been proposed as a safer alternative; however, its adoption has been limited because it can be difficult for a surgeon to visually control the thermal interactions that occur between the laser and the tissue. In this study, we propose to monitor the ablation caused by a CO₂ laser on ex-vivo tonsil tissue using photoacoustic imaging. Soft tissue’s unique photoacoustic spectra were used to distinguish between ablated and non-ablated tissue. Our results suggest that photoacoustic imaging is able to visualize necrosis formation and calculate the necrotic extent, offering the potential for improved tonsil laser ablation outcomes.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Nicholas E. Pacheco, Shang Gao, Kevin Cleary, Rahul Shah, Haichong Zhang, and Loris Fichera "Photoacoustic image guidance for laser tonsil ablation: approach and initial results", Proc. SPIE 12928, Medical Imaging 2024: Image-Guided Procedures, Robotic Interventions, and Modeling, 129281A (29 March 2024); https://doi.org/10.1117/12.3007295

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