NDLI: Development of an accuracy assessment phantom for surgical navigators

Content Provider	IEEE Xplore Digital Library
Author	Koivukangas, T. Katisko, J. Nevala, K. Louhisalmi, Y. Koivukangas, J.
Copyright Year	2009
Description	Author affiliation: Department of Neurosurgery and Chief of the Neurosurgery Research Unit at Oulu University Hospital, Oulu, Finland (Koivukangas, J.) \|\| Department of Mechanical Engineering at University of Oulu, Oulu, Finland (Louhisalmi, Y.) \|\| Department of Neurosurgery, Oulu, Finland (Katisko, J.) \|\| Department of Mechanical Engineering, University of Oulu, Oulu, Finland (Koivukangas, T.) \|\| Mechatronics and Machine Diagnostics Laboratory, University of Oulu and Technical Research Centre of Finland, Oulu, Finland (Nevala, K.)
Abstract	The objective of this study was to design a calibration phantom for a surgical navigator used in a hospital environment. It addresses two major issues: the design of an accuracy phantom and the accuracy analysis of the surgical navigator in a hospital setting. The designed phantom was used to assess the accuracy of the optical tracking modality of the surgical navigator used at Oulu University Hospital, Oulu, Finland. The phantom functioned according to the design criteria, it was easy to use and it had enough calibration points that were localized by the navigator according to the accuracy assessment protocol to assess the accuracy error. The distances measured from a fixed origin with the surgical navigator were compared to the known phantom calibration point coordinates. The mean error was within the manufacturer specifications of 1.00 mm. The analysis done using the designed phantom and accuracy assessment protocol showed that the error increased with the distance from the center of the phantom. The accuracy assessment protocol using the present phantom proved to be a suitable method for accuracy analysis of a surgical navigator in a hospital setting.
Starting Page	1517
Ending Page	1520
File Size	781928
Page Count	4
File Format	PDF
ISBN	9781424432967
ISSN	1557170X
DOI	10.1109/IEMBS.2009.5334298
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Imaging phantoms Surgery Navigation Hospitals Calibration Protocols Neurosurgery Surges Optical sensors Manufacturing protocol surgical navigation phantom accuracy
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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