Carl Snyderman1, Lee A Zimmer, Amin Kassam. 1. Department of Otolaryngology-Head and Neck Surgery, University of Pittsburg Medical Center, Pittsburg, Pennsylvania, USA. snydermanch@upmc.edu
Abstract
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.
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.
Authors: Amin B Kassam; Ajith J Thomas; Lee A Zimmer; Carl H Snyderman; Ricardo L Carrau; Arlan Mintz; Michael Horowitz Journal: Childs Nerv Syst Date: 2007-01-17 Impact factor: 1.475
Authors: Marco Lai; Simon Skyrman; Caifeng Shan; Drazenko Babic; Robert Homan; Erik Edström; Oscar Persson; Gustav Burström; Adrian Elmi-Terander; Benno H W Hendriks; Peter H N de With Journal: PLoS One Date: 2020-01-16 Impact factor: 3.240