NDLI: Design and accuracy evaluation of a new navigated drill system for computer assisted ENT-surgery

Content Provider	IEEE Xplore Digital Library
Author	Wenger, T. Nowatschin, S. Wittmann, W. Hurka, F. Strauss, G. Lueth, T.C.
Copyright Year	2011
Description	Author affiliation: Director of the Institute of Micro Technology and Medical Device Technology at the Technische Universität München, Garching, Germany (Strauss, G.; Lueth, T.C.) \|\| ERGOSURG GmbH, Ismaning, Germany and the Institute for Micro Technology and Medical Device Technology at the Technische Universität München, Garching, Germany (Wenger, T.; Wittmann, W.) \|\| ENT Department, Universitätsklinikum Leipzig, Leipzig, Germany (Hurka, F.) \|\| ERGOSURG GmbH, Ismaning, Germany (Nowatschin, S.)
Abstract	In this article a new navigated drill system for computer assisted ear, nose and throat (ENT) surgery is presented. The navigated drill and the microscope probe are part of a surgical navigation system for ENT-surgery. In particular, the accuracy of the new navigated drill is compared to an existing navigated drill experimentally under conditions close to the surgical workflow. For the technical accuracy experiment, the new navigated drill in combination with the new microscope probe and a particular navigated measurement board have been integrated, together with the current navigated drill, in a navigation system by a special navigation software with measuring function, based on a standard ENT navigation software. The developed navigated measurement board provided the implementation of reproducible experiments and the direct accuracy comparison of the two navigated instruments under the same conditions. Thereby, N = 15 accuracy experiments are performed with both navigated drill systems with three possible tracker positions. The distance between the planned and the touched points were calculated and compared. The average distances from the planned points to the touched points with the new navigated drill is in the left tracker position 1.10 mm, in the middle tracker position 1.14 mm and in the right tracker position 1.59 mm. In comparison to the existing drill, the new navigated drill, measured with each tracker position, is 0.62 mm more accurate.
Starting Page	1233
Ending Page	1236
File Size	933361
Page Count	4
File Format	PDF
ISBN	9781424441211
ISSN	1557170X
e-ISBN	9781457715891
e-ISBN	9781424441228
DOI	10.1109/IEMBS.2011.6090290
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Navigation Accuracy Position measurement Instruments Surgery Optical variables measurement Software measurement
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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