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Related Experiment Videos

MR-guided endoscopic sinus surgery

L Hsu1, M P Fried, F A Jolesz

  • 1Department of Radiology, Harvard Medical School, Brigham and Women's Hospital, Boston, MA 02115, USA.

AJNR. American Journal of Neuroradiology
|September 3, 1998
PubMed
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This study introduces a novel MR-guided endoscopic sinus surgery (ESS) technique using interactive imaging and optical tracking. This method enabled precise localization of anatomical landmarks during surgery, ensuring patient safety with no complications.

Area of Science:

  • Medical Imaging
  • Surgical Technology
  • Otolaryngology

Background:

  • Endoscopic sinus surgery (ESS) is a common procedure for various sinonasal conditions.
  • Accurate navigation and visualization of complex sinonasal anatomy are critical for successful ESS.
  • Existing methods may have limitations in providing real-time, interactive anatomical guidance during surgery.

Purpose of the Study:

  • To describe and evaluate an interactive, intraoperative imaging-guided method for performing ESS.
  • To assess the feasibility and safety of using a vertically open MR system for ESS guidance.
  • To demonstrate the integration of endoscopy, optical tracking, and MR imaging for enhanced surgical navigation.

Main Methods:

  • A novel technique was developed for ESS using a vertically open 0.5-T MR system with a 56-cm vertical gap.

Related Experiment Videos

  • Interactive control of imaging planes was achieved via optical tracking of an aspirator probe with infrared light-emitting diodes.
  • The probe's position determined the location of orthogonal imaging planes, guiding the surgical procedure.
  • Twelve patients with diverse sinus conditions underwent ESS with this MR imaging guidance under general anesthesia.

    • Main Results:

    • The integrated system allowed for effective localization of critical anatomic landmarks during ESS.
    • The procedure was successfully performed in all twelve patients, encompassing sinusitis, nasal polyposis, and tumor biopsy.
    • No intraoperative or postoperative complications were reported in any of the patients.

    Conclusions:

    • The described interactive, intraoperative MR imaging-guided method is a feasible and safe approach for performing ESS.
    • This technique enhances surgical navigation by integrating endoscopy, optical tracking, and real-time imaging.
    • The system shows promise for improving precision and safety in complex sinonasal surgeries.