On the merits of using angled fiber tips in office-based laser surgery of the vocal folds

Isabelle A. Chan; Jesse F. d'Almeida; Alex J. Chiluisa; Thomas L. Carroll; Yuxiang Liu; Loris Fichera

doi:10.1117/12.2580454

15 February 2021 On the merits of using angled fiber tips in office-based laser surgery of the vocal folds

Isabelle A. Chan, Jesse F. d'Almeida, Alex J. Chiluisa, Thomas L. Carroll, Yuxiang Liu, Loris Fichera

Proceedings Volume 11598, Medical Imaging 2021: Image-Guided Procedures, Robotic Interventions, and Modeling; 115981Z (2021) https://doi.org/10.1117/12.2580454
Event: SPIE Medical Imaging, 2021, Online Only

Conference Poster

Abstract

Office-based endoscopic laser surgery is an increasingly popular option for the treatment of many benign and premalignant tumors of the vocal folds. While these procedures have been shown to be generally safe and effective, recent clinical studies have revealed that there are a number of challenging locations inside the larynx where laser light cannot be easily delivered due to line-of-sight limitations. In this paper, we explore whether these challenges can be overcome through the use of side-firing laser fibers. Our study is conducted in simulation, using three-dimensional models of the human larynx generated from X-ray microtomography scans. Using computer graphics techniques (ray-casting), we simulate the application of laser pulses with different types of laser fibers and compare the total anatomical coverage attained by each fiber. We consider four fiber types: a traditional “forward-looking” fiber - not unlike the ones currently used in clinical practice - and three side-firing fibers that emit light at an angle of 45, 70, and 90 degrees, respectively. Results show that side-firing fibers enable a ∼70% increase in accessible anatomy compared to forward-looking fibers.

Conference Presentation

Citation Download Citation

Isabelle A. Chan, Jesse F. d'Almeida, Alex J. Chiluisa, Thomas L. Carroll, Yuxiang Liu, and Loris Fichera "On the merits of using angled fiber tips in office-based laser surgery of the vocal folds", Proc. SPIE 11598, Medical Imaging 2021: Image-Guided Procedures, Robotic Interventions, and Modeling, 115981Z (15 February 2021); https://doi.org/10.1117/12.2580454

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