Copyright © 2008 American Medical Association. All rights reserved. From: Comparison of 3 Optical Navigation Systems for Computer-Aided Maxillofacial Surgery Arch Otolaryngol Head Neck Surg. 2008;134(10):1080-1084. doi:10.1001/archotol.134.10.1080 Figure Legend: Anatomical location of 15 invasive fiducial makers placed in each skull. The 6 green fiducial markers were used for registration. The 9 blue fiducial markers were used to determine the target registration error. Date of download: 10/20/2017 Copyright © 2008 American Medical Association. All rights reserved.

Copyright © 2008 American Medical Association. All rights reserved. From: Comparison of 3 Optical Navigation Systems for Computer-Aided Maxillofacial Surgery Arch Otolaryngol Head Neck Surg. 2008;134(10):1080-1084. doi:10.1001/archotol.134.10.1080 Figure Legend: Navigation systems used in this study: StealthStation (Medtronic-Xomed, Jacksonville, Florida), VectorVision (BrainLab, Munich, Germany), and Voxim (IVS Solutions, Chemnitz, Germany). Date of download: 10/20/2017 Copyright © 2008 American Medical Association. All rights reserved.

Copyright © 2008 American Medical Association. All rights reserved. From: Comparison of 3 Optical Navigation Systems for Computer-Aided Maxillofacial Surgery Arch Otolaryngol Head Neck Surg. 2008;134(10):1080-1084. doi:10.1001/archotol.134.10.1080 Figure Legend: The FESSframe headset holding the reference arc on a model. Date of download: 10/20/2017 Copyright © 2008 American Medical Association. All rights reserved.