Document Detail

Sources of registration error with image guidance systems during endoscopic anterior cranial base surgery.
MedLine Citation:
PMID:  15365528     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: The goal of this study was to evaluate the accuracy of the registration process and to identify potential sources of error during anterior cranial base surgery. STUDY DESIGN AND SETTING: The registration accuracy of image guidance and the location of excluded fiducials were recorded prospectively from 50 endoscopic, anterior cranial base procedures in an academic university setting. RESULTS: The mean error of initial registration was 2.8 mm (range, 1.4 to 7.1 mm). Following the exclusion of fiducials the mean error of registration was 1.6 mm (range, 0.6 to 3.7 mm). There was a significant improvement in the mean error rate from initial to final registration following the exclusion of fiducials (P < 0.0001). Posterior fiducials were excluded most often and anterior fiducials were excluded the least. Registration accuracy was similar for CT and MRI (P = 0.64). CONCLUSIONS: The accuracy of the Stryker Image Guidance System is enhanced by the exclusion of individual fiducials with high registration errors. SIGNIFICANCE: The exclusion of fiducials with high registration errors increases the accuracy of image guidance in anterior cranial base surgery.
Carl Snyderman; Lee A Zimmer; Amin Kassam
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery     Volume:  131     ISSN:  0194-5998     ISO Abbreviation:  Otolaryngol Head Neck Surg     Publication Date:  2004 Sep 
Date Detail:
Created Date:  2004-09-14     Completed Date:  2004-10-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8508176     Medline TA:  Otolaryngol Head Neck Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  145-9     Citation Subset:  IM    
Department of Otolaryngology-Head and Neck Surgery, University of Pittsburg Medical Center, Pittsburg, Pennsylvania, USA.
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MeSH Terms
Aged, 80 and over
Diagnostic Errors*
Imaging, Three-Dimensional*
Intraoperative Care
Magnetic Resonance Imaging*
Middle Aged
Prospective Studies
Reproducibility of Results
Skull Base / pathology*,  radiography*,  surgery
Surgery, Computer-Assisted*
Tomography, X-Ray Computed*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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