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Breast-Conserving Surgery (BCS) often presents significant challenges in accurately localising the tumours intraoperatively, even for expert surgeons. Augmented Reality (AR) has been attempted to improve BCS accuracy. Existing systems are still research prototypes and share two main limitations caused by a) breast deformations and b) camera projection. We propose an AR system for BCS which uses preoperative MRI and an intraoperative RGB-D camera. We mitigate a), which mainly occurs because of gravity, by collecting a preoperative MRI in supine position. We mitigate b), which occurs because of variations in the relative breast to camera position, using a vertical projection method. Retrospective qualitative and quantitative evaluations for two patients are promising.

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Guiding Breast Conservative Surgery by Augmented Reality from Preoperative MRI: Initial System Design and Retrospective Trials

  • 会议论文

  • 发表日期：

    2025年

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  • Rasoul Sharifian,
  • Sabrina Madad-Zadeh,
  • Nicolas Bourdel,
  • Alexia Giro,
  • Wissam Marraoui,
  • Christophe Pomel,
  • Adrien Bartoli

摘要

Breast-Conserving Surgery (BCS) often presents significant challenges in accurately localising the tumours intraoperatively, even for expert surgeons. Augmented Reality (AR) has been attempted to improve BCS accuracy. Existing systems are still research prototypes and share two main limitations caused by a) breast deformations and b) camera projection. We propose an AR system for BCS which uses preoperative MRI and an intraoperative RGB-D camera. We mitigate a), which mainly occurs because of gravity, by collecting a preoperative MRI in supine position. We mitigate b), which occurs because of variations in the relative breast to camera position, using a vertical projection method. Retrospective qualitative and quantitative evaluations for two patients are promising.