Subthalamic Nucleus (STN) deep brain stimulation (DBS) for Parkinson's Disease (PD): Magnetic Resonance Imaging (MRI) Procedure to Localize the Final Implanted Electrodes

Détails

ID Serval
serval:BIB_C11E18BB855E
Type
Actes de conférence (partie): contribution originale à la littérature scientifique, publiée à l'occasion de conférences scientifiques, dans un ouvrage de compte-rendu (proceedings), ou dans l'édition spéciale d'un journal reconnu (conference proceedings).
Sous-type
Abstract (résumé de présentation): article court qui reprend les éléments essentiels présentés à l'occasion d'une conférence scientifique dans un poster ou lors d'une intervention orale.
Collection
Publications
Titre
Subthalamic Nucleus (STN) deep brain stimulation (DBS) for Parkinson's Disease (PD): Magnetic Resonance Imaging (MRI) Procedure to Localize the Final Implanted Electrodes
Titre de la conférence
13th Meeting of the World Society for Stereotactic and Functional Neurosurgery
Auteur(s)
Pollo C, Ghika J, Vingerhoets F, Maeder P, Meurli R, Thiran JP, Villemre JG
Adresse
Adelaide, September 2001
ISBN
1423-0372
ISSN-L
1011-6125
Statut éditorial
Publié
Date de publication
2001
Volume
77
Série
Stereotactic and Functional Neurosurgery
Pages
154
Langue
anglais
Résumé
Objective: Validate an MRI procedure to localize the position of our final implanted electrodes.
Material and Methods: 26 parkinsonian patients were selected for DBS. Surgery was performed with a CRW (Radionics) frame. The final electrode (Medtronic Activa 3389) was implanted according to the MRI preoperative target, microrecording and macrostimulation. A postop 3D MPRAGE MRI was performed to localize the distal end of the distorsion artifact induced by the contacts of the electrodes. The size of this artifact was studied independently by scanning the electrode in a reference system. It allowed us to calculate the center of each contact, together with the projected angles of the electrode, the height of one contact and the distance between 2 adjacent contacts.
Results: A distance of 1.4 mm was measured between the artifact and the contact. 208 contacts and 65 active contacts were projected on sagittal, coronal and axial views of the Schaltenbrand and Wahren stereotactic atlas (SWSA). The mean coordinates of each contact were reported as well as the active contact (AP: 3.09 mm behind, LAT: 12.06 mm, VERT: 4.06 mm below the MCP). Conclusion: Considering the knowledge of the distorsion artifact induced by the electrodes, the validation of our procedure is based on the exact matching of the planned target and the mean active contact. The distribution of our contacts over the anatomical limits of the STN on the SWSA suggests a possible variability of position between individuals as well as the possible efficacy of other stimulated structures (SNr) on PD symptoms.
Création de la notice
12/12/2013 0:24
Dernière modification de la notice
03/03/2018 21:07
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