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Surface-Based Registration of MR Scan versus Refined Anatomy-Based Registration of CT Scan: Effect on the Accuracy of SEEG Electrodes Implantation Performed in Prone Position under Frameless Neuronavigation.
- Source :
-
Stereotactic and functional neurosurgery [Stereotact Funct Neurosurg] 2020; Vol. 98 (2), pp. 73-79. Date of Electronic Publication: 2020 Feb 07. - Publication Year :
- 2020
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Abstract
- Introduction: Stereoelectroencephalography (SEEG) refers to a commonly used diagnostic procedure to localise and define the epileptogenic zone of refractory focal epilepsies, by means of minimally invasive operation techniques without large craniotomies.<br />Objective: This study aimed to investigate the influence of different registration methods on the accuracy of SEEG electrode implantation under neuronavigation for paediatric patients with refractory epilepsy.<br />Methods: The clinical data of 18 paediatric patients with refractory epilepsy were retrospectively analysed. The SEEG electrodes were implanted under optical neuronavigation while the patients were in the prone position. Patients were divided into two groups on the basis of the surface-based registration of MR scan method and refined anatomy-based registration of CT scan. Registration time, accuracy, and the differences between electrode placement and preoperative planned position were analysed.<br />Results: Thirty-six electrodes in 7 patients were placed under surface-based registration of MR scan, and 45 electrodes in 11 patients were placed under refined anatomy-based registration of CT scan. The registration time of surface-based registration of MR scan and refined anatomy-based registration of CT scan was 45 ± 12 min and 10 ± 4 min. In addition, the mean registration error, the error of insertion point, and target error were 3.6 ± 0.7 mm, 2.7 ± 0.7 mm, and 3.1 ± 0.5 mm in the surface-based registration of MR scan group, and 1.1 ± 0.3 mm, 1.5 ± 0.5 mm, and 2.2 ± 0.6 mm in the refined anatomy-based registration of CT scan group. The differences between the two registration methods were statistically significant.<br />Conclusions: The refined anatomy-based registration of CT scan method can improve the registration efficiency and electrode placement accuracy, and thereby can be considered as the preferred registration method in the application of SEEG electrode implantation under neuronavigation for treatment of paediatric intractable epilepsy.<br /> (© 2020 S. Karger AG, Basel.)
- Subjects :
- Adolescent
Child
Child, Preschool
Drug Resistant Epilepsy diagnostic imaging
Drug Resistant Epilepsy surgery
Electroencephalography methods
Female
Humans
Magnetic Resonance Imaging methods
Male
Neuronavigation methods
Retrospective Studies
Tomography, X-Ray Computed methods
Electrodes, Implanted standards
Magnetic Resonance Imaging standards
Neuronavigation standards
Prone Position physiology
Stereotaxic Techniques standards
Tomography, X-Ray Computed standards
Subjects
Details
- Language :
- English
- ISSN :
- 1423-0372
- Volume :
- 98
- Issue :
- 2
- Database :
- MEDLINE
- Journal :
- Stereotactic and functional neurosurgery
- Publication Type :
- Academic Journal
- Accession number :
- 32036377
- Full Text :
- https://doi.org/10.1159/000505713