Accuracy of a new intraoperative cone beam CT imaging technique (Artis zeego II) compared to postoperative CT scan for assessment of pedicle screws placement and breaches detection

European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
Virginie CordemansOlivier Cartiaux

Abstract

The goal of this study was to compare the accuracy of a novel intraoperative cone beam computed tomography (CBCT) imaging technique with that of conventional computed tomography (CT) scans for assessment of pedicle screw placement and breach detection. Three hundred and forty-eight pedicle screws were inserted in 58 patients between October 2013 and March 2016. All patients had an intraoperative CBCT scan and a conventional CT scan to verify the placement of the screws. The CBCT and CT images were reviewed by two surgeons to assess the accuracy of screw placement and detect pedicle breaches using two established classification systems. Agreement on screw placement between intraoperative CBCT and postoperative CT was assessed using Kappa and Gwet's coefficients. Using CT scanning as the gold standard, the sensitivity, specificity, positive predictive value, and negative predictive value were calculated to determine the ability of CBCT imaging to accurately evaluate screw placement. The Kappa coefficient was 0.78 using the Gertzbein classification and 0.80 using the Heary classification, indicating a substantial agreement between the intraoperative CBCT and postoperative CT images. Gwet's coefficient was 0.94 for both classificat...Continue Reading

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Citations

Jun 21, 2017·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Virginie CordemansOlivier Cartiaux
Mar 2, 2019·Annual Review of Biomedical Engineering·Jocelyne TroccazGuang-Zhong Yang
Apr 28, 2020·Medical Physics·Chumin ZhaoWojciech Zbijewski
Jul 12, 2019·International Journal of Computer Assisted Radiology and Surgery·Hooman EsfandiariAntony J Hodgson
Aug 26, 2020·International Journal of Computer Assisted Radiology and Surgery·Mareike ThiesMathias Unberath
Aug 19, 2017·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Chee Kean LeeMun Keong Kwan
Aug 18, 2018·BMC Musculoskeletal Disorders·Masahito OshinaSakae Tanaka
May 29, 2018·International Journal of Computer Assisted Radiology and Surgery·Hooman EsfandiariAntony J Hodgson
Jan 22, 2021·Physics in Medicine and Biology·Xiaoxuan ZhangJeffrey H Siewerdsen
Jan 20, 2021·The International Journal of Medical Robotics + Computer Assisted Surgery : MRCAS·Hooman EsfandiariAntony J Hodgson
Oct 11, 2021·Medical Physics·Chumin ZhaoWojciech Zbijewski
Nov 16, 2021·Journal of Neurological Surgery. Part A, Central European Neurosurgery·Frederik EndersDaniel Hänggi

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