Machine learning monitoring for laser osteotomy.

Journal: Journal of biophotonics
Published Date: Apr 1, 2021

Abstract

This work proposes a new online monitoring method for an assistance during laser osteotomy. The method allows differentiating the type of ablated tissue and the applied dose of laser energy. The setup analyzes the laser-induced acoustic emission, detected by an airborne microphone sensor. The analysis of the acoustic signals is carried out using a machine learning algorithm that is pre-trained in a supervised manner. The efficiency of the method is experimentally evaluated with several types of tissues, which are: skin, fat, muscle, and bone. Several cutting-edge machine learning frameworks are tested for the comparison with the resulting classification accuracy in the range of 84-99%. It is shown that the datasets for the training of the machine learning algorithms are easy to collect in real-life conditions. In the future, this method could assist the doctors during laser osteotomy, minimizing the damage of the nearby healthy tissues and provide cleaner pathologic tissue removal.

Authors

  • Sergey Shevchik
    Laboratory for Advanced Materials Processing, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland.
  • HervĂ© Nguendon Kenhagho
    Biomedical Laser and Optics Group, Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland.
  • Tri Le-Quang
    Laboratory for Advanced Materials Processing, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland.
  • Neige Faivre
    Laboratory for Advanced Materials Processing, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland.
  • Bastian Meylan
    Laboratory for Advanced Materials Processing, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland.
  • Raphael Guzman
    Department of Neurosurgery, University Hospital Basel, Basel, Switzerland.
  • Philippe C Cattin
    Department of Biomedical Engineering, Faculty of Medicine, University of Basel, Allschwil, Switzerland.
  • Azhar Zam
    Biomedical Laser and Optics Group, Department of Biomedical Engineering, University of Basel, Allschwil, Switzerland.
  • Kilian Wasmer
    Laboratory for Advanced Materials Processing, Empa-Swiss Federal Laboratories for Materials Science and Technology, Thun, Switzerland.

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