 |
|
Frameless Optical Computer-Aided Tracking of a Microscope for Otorhinology and Skull Base Surgery
Guoyan Zheng, PhD;
Marco Caversaccio, MD;
Richard Bächler, PhD;
Frank Langlotz, PhD;
Lutz-Peter Nolte, PhD;
Rudolf Häusler, MD
Arch Otolaryngol Head Neck Surg. 2001;127:1233-1238.
Objectives To integrate a digitally controlled operating microscope without a laser
autofocus system into a frameless optical computer-aided surgery system and
to test the accuracy and usability of this system in otorhinological surgery.
Design Experimental study and case series.
Setting Department of Oto-Rhino-Laryngology, Head and Neck Surgery, Inselspital,
and the Maurice E. Müller Institute for Biomechanics, University of Bern,
Bern, Switzerland.
Patients Eight computer-aided microscopic surgical procedures were performed
between January and October 2000 on patients with various diseases of the
anterior and lateral skull base.
Results The practical accuracy of the navigated microscope on the lateral side
of a cadaver skull was 2.27 ± 0.25 mm and on the anterior side of the
same skull was 2.07 ± 0.35 mm. In all 8 cases of computer-aided microscopic
surgery, no complications occurred. Clinical inaccuracy was 2 to 3 mm.
Conclusion Integration of a low-cost, non–laser autofocus microscope into
our computer-aided surgery system was successfully performed and offers surgeons
the ability to combine the precise optics of the operating microscope with
the localization power of a computer-aided system.
From the Department of Oto-Rhino-Laryngology, Head and Neck Surgery,
University Hospital (Inselspital) (Drs Zheng, Caversaccio, and Häusler),
and the Maurice E. Müller Institute for Biomechanics (Drs Zheng, Bächler,
Langlotz, and Nolte), University of Bern, Bern, Switzerland. The authors have
no financial interest in any of the equipment mentioned, and no monetary compensation
was received from the manufacturers.
RELATED ARTICLE
Archives of Otolaryngology–Head & Neck Surgery Reader's Choice: Continuing Medical Education
Arch Otolaryngol Head Neck Surg. 2001;127(10):1289-1291.
FULL TEXT
|
