Novel optical technologies for ultrashort pulsed laser surgery

Donald R. Risbridger; Rainer J. Beck; Syam P. C. Mohanan; Aongus McCarthy; Mike Shires; David Jayne; Jonathan D. Shephard

doi:10.1117/12.2527081

22 July 2019 Novel optical technologies for ultrashort pulsed laser surgery

Donald R. Risbridger, Rainer J. Beck, Syam P. C. Mohanan, Aongus McCarthy, Mike Shires, David Jayne, Jonathan D. Shephard

Author Affiliations +

Proceedings Volume 11075, Novel Biophotonics Techniques and Applications V; 110751N (2019) https://doi.org/10.1117/12.2527081
Event: European Conferences on Biomedical Optics, 2019, Munich, Germany

Abstract

Colorectal cancer is the fourth-most prominent cause of cancer related fatalities across the globe. Conventional electrocautery techniques used in the resection of colon tissue cause a relatively high degree of collateral damage to the healthy tissues bordering the target sites. Ultrafast infrared lasers offer significantly improved localisation in the ablation of such biological tissues arising from a plasma-mediated ablation mechanism. This improved localisation is two-fold, with lateral confinement and precise depth control being advantageous in minimising thermal necrosis and avoiding bowel perforation respectively. Various laser scanning strategies and optical elements have been investigated, with the intent to exploit the inherent advantages offered from applying photonics to these procedures. Evaluation of the corresponding ablation characteristics was carried out using three-dimensional optical profilometry and histological analysis. If adopted in operating theatres, surgeons could benefit from more control when carrying out resection of neoplasia in the mucosal or submucosal layers of colon tissue, compared to previous electrocautery methods.

Citation Download Citation

Donald R. Risbridger, Rainer J. Beck, Syam P. C. Mohanan, Aongus McCarthy, Mike Shires, David Jayne, and Jonathan D. Shephard "Novel optical technologies for ultrashort pulsed laser surgery", Proc. SPIE 11075, Novel Biophotonics Techniques and Applications V, 110751N (22 July 2019); https://doi.org/10.1117/12.2527081

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