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. 2003 Feb;13(1):43-50.
doi: 10.1055/s-2003-820556.

Comparison of Different Computer-Aided Surgery Systems in Skull Base Surgery

U Ecke  1 , B Luebben, J Maurer, S Boor, W J Mann
Affiliations

Comparison of Different Computer-Aided Surgery Systems in Skull Base Surgery

U Ecke et al. Skull Base. 2003 Feb.

Abstract

Computer-aided surgery (CAS) based on high-resolution imaging techniques represents an important adjunct to precise intraoperative orientation when anatomical landmarks are distorted or missing. Several commercial systems, mostly based on optical or electromagnetic navigation principles, are on the market. This study investigated the application of EasyGuide(R), VectorVision(R), and InstaTrak(R) CAS systems in ENT surgery under practical and laboratory conditions. System accuracy, time required, handling, individual features, and practicality were examined in 155 patients who underwent endonasal sinus surgery and in 23 patients who underwent anterior or lateral skull base procedures. The VectorVision(R) and InstaTrak(R) CAS systems proved to be suitable for routine application in surgery involving the paranasal sinuses and various regions of the anterior skull base by helping to avoid critical structures and to determine minimally invasive approaches.

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Figures

Figure 1
Figure 1
Perspex phantom with 10 fiducial markers placed at predefined geometric coordinates.
Figure 2
Figure 2
Identification of the roof of the ethmoidal sinus with the EasyGuide® system during microscopic endonasal sinus surgery.
Figure 3
Figure 3
Identification of the cavum nasi through a middle cranial fossa approach using the VectorVision® system in a patient with a recurrent meningioma of left infratemporal fossa, orbit, sphenoid, and nasal cavity.
Figure 4
Figure 4
Identification of an extension of a mucocele of the left frontal sinus to the right frontal sinus using the InstaTrak® system.
See this image and copyright information in PMC

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