1998
DOI: 10.1007/pl00014462
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Intraoperative Präzision mechanischer, elektromagnetischer, infrarot- und lasergeführter Navigationssysteme in der computergestützten Chirurgie

Abstract: Intraoperative precision in computer-assisted surgery depends on the characteristics of a navigation system, the precision of correlation between object and data set, the position, number and fixation of landmarks, and the parameters of the data set. The characteristics of a navigation system, in particular the immanent precision, can be detected by the use of the geometric model and navigation analyzer developed at the University of Regensburg with the support of Carl Zeiss, Germany. The precision of five nav… Show more

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Cited by 21 publications
(4 citation statements)
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“…The laser target device was used before in conjunction with CT or navigation devices to make biopsies, interventions, and punctures and to determine appropriate surgical margins in neurologic operations. [6][7][8] Harris and colleagues 9 developed a similar device for orthopedic procedures in order to decrease radiation exposure time. However, they found no significant difference between the group having guidance with the laser beam and that treated without the laser beam.…”
Section: Discussionmentioning
confidence: 99%
“…The laser target device was used before in conjunction with CT or navigation devices to make biopsies, interventions, and punctures and to determine appropriate surgical margins in neurologic operations. [6][7][8] Harris and colleagues 9 developed a similar device for orthopedic procedures in order to decrease radiation exposure time. However, they found no significant difference between the group having guidance with the laser beam and that treated without the laser beam.…”
Section: Discussionmentioning
confidence: 99%
“…They report on errors of 3.2 ± 2.4 mm to 6.4 ± 2.5 mm under conditions of an operating-room (Birkfellner et al 1998a). Marmulla et al (1998) have recorded serious spherical deviations of 10.0-20.0 mm in the presence of metal, surgical and rotating instruments and electric circuits with a Polhemus digitizer. In general, the degree of distortion depends on the system as well as on the specific experimental set-up.…”
Section: Introductionmentioning
confidence: 99%
“…1 m 3 . Verknüpft wird diese Information der Instrumentenposition mit der Bildformation in einem Hochleistungsrechner (Workstation) der diese komplexen Rechenvorgänge in Echtzeit durchführt [ 3 , 5 , 11 , 12 , 13 , 15 , 17 , 22 ] (Abb. 1 ).…”
Section: Introductionunclassified