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A detailed analysis of anatomical plausibility of crossed and uncrossed streamline rendition of the dentato-rubro-thalamic tract (DRT(T)) in a commercial stereotactic planning system.
Coenen, Volker A; Sajonz, Bastian E; Reinacher, Peter C; Kaller, Christoph P; Urbach, Horst; Reisert, M.
Afiliação
  • Coenen VA; Department of Stereotactic and Functional Neurosurgery, Medical Center of Freiburg University, Breisacher Strasse 64, 79106, Freiburg i.Br, Germany. volker.coenen@uniklinik-freiburg.de.
  • Sajonz BE; Medical Faculty of Freiburg University, Freiburg, Germany. volker.coenen@uniklinik-freiburg.de.
  • Reinacher PC; Center for Deep Brain Stimulation, Medical Center of Freiburg University, Freiburg, Germany. volker.coenen@uniklinik-freiburg.de.
  • Kaller CP; Department of Stereotactic and Functional Neurosurgery, Medical Center of Freiburg University, Breisacher Strasse 64, 79106, Freiburg i.Br, Germany.
  • Urbach H; Medical Faculty of Freiburg University, Freiburg, Germany.
  • Reisert M; Department of Stereotactic and Functional Neurosurgery, Medical Center of Freiburg University, Breisacher Strasse 64, 79106, Freiburg i.Br, Germany.
Acta Neurochir (Wien) ; 163(10): 2809-2824, 2021 10.
Article em En | MEDLINE | ID: mdl-34181083
BACKGROUND: An increasing number of neurosurgeons use display of the dentato-rubro-thalamic tract (DRT) based on diffusion weighted imaging (dMRI) as basis for their routine planning of stimulation or lesioning approaches in stereotactic tremor surgery. An evaluation of the anatomical validity of the display of the DRT with respect to modern stereotactic planning systems and across different tracking environments has not been performed. METHODS: Distinct dMRI and anatomical magnetic resonance imaging (MRI) data of high and low quality from 9 subjects were used. Six subjects had repeated MRI scans and therefore entered the analysis twice. Standardized DICOM structure templates for volume of interest definition were applied in native space for all investigations. For tracking BrainLab Elements (BrainLab, Munich, Germany), two tensor deterministic tracking (FT2), MRtrix IFOD2 ( https://www.mrtrix.org ), and a global tracking (GT) approach were used to compare the display of the uncrossed (DRTu) and crossed (DRTx) fiber structure after transformation into MNI space. The resulting streamlines were investigated for congruence, reproducibility, anatomical validity, and penetration of anatomical way point structures. RESULTS: In general, the DRTu can be depicted with good quality (as judged by waypoints). FT2 (surgical) and GT (neuroscientific) show high congruence. While GT shows partly reproducible results for DRTx, the crossed pathway cannot be reliably reconstructed with the other (iFOD2 and FT2) algorithms. CONCLUSION: Since a direct anatomical comparison is difficult in the individual subjects, we chose a comparison with two research tracking environments as the best possible "ground truth." FT2 is useful especially because of its manual editing possibilities of cutting erroneous fibers on the single subject level. An uncertainty of 2 mm as mean displacement of DRTu is expectable and should be respected when using this approach for surgical planning. Tractographic renditions of the DRTx on the single subject level seem to be still illusive.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Tremor Essencial / Estimulação Encefálica Profunda Limite: Humans Idioma: En Revista: Acta Neurochir (Wien) Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Alemanha País de publicação: Áustria

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Tremor Essencial / Estimulação Encefálica Profunda Limite: Humans Idioma: En Revista: Acta Neurochir (Wien) Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Alemanha País de publicação: Áustria