| Correspondence of microelectrode mapping with magnetic resonance imaging for subthalamic nucleus procedures. | |
| | |
MedLine Citation:
|
PMID: 15734516 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
BACKGROUND: Magnetic resonance imaging (MRI) and microelectrode recording (MER) are commonly used to guide stereotactic procedures on the subthalamic nucleus (STN). Little is known about the correlation between the position of the STN as seen on MRI and that as determined by MER mapping. We compared these in 10 patients with Parkinson's disease. METHODS: The position of the STN was determined by intraoperative MER findings and stereotactic axial T2 magnetic resonance images with 2-mm slice thickness. Images were reconstructed in a 3-dimensional workstation. The anterior, posterior, medial, lateral, dorsal, and ventral borders of the STN defined with the MRI were measured relative to the midcommissural point. The location of STN activity during MER was reconstructed relative to the midcommissural point for comparison. RESULTS: Twenty-nine tracks recorded with microelectrodes provided clear spans of STN-like activity in 18 STN nuclei. The coordinates of MER were, in general, within the borders of the STN defined with the MRI. However, when analyzed individually, some of the tracks had STN-like activity outside the borders of the MRI-defined nucleus (mostly <1 mm). Three tracks had STN-like activity recorded between 2 and 3 mm more anterior than the anterior border of the nucleus defined with the MRI. CONCLUSIONS: There was a good correlation between MER and the borders of the STN defined in the MRI, except for the anterior-posterior axis, in which MER indicated that the STN extended more anteriorly than as suggested by MRI. This should be taken into account in STN surgery. |
| | |
Authors:
|
Clement Hamani; Erich O Richter; Yuri Andrade-Souza; William Hutchison; Jean A Saint-Cyr; Andres M Lozano |
Related Documents
:
|
9311076 - Stereotactic frame-based error in magnetic-resonance-guided stereotactic procedures: a ... 22194366 - 3d computerized occlusion rating of embolized experimental aneurysms using noninvasive ... 21716016 - Kikuchi-fujimoto disease: pet/ct assessment of a rare cause of cervical lymphadenopathy. 20408206 - Robust multimodality registration for brain mapping. 3295286 - Pitfalls in femur length measurements. 20425996 - Automatic segmentation of the pulmonary lobes from fissures, airways, and lung borders:... |
Publication Detail:
|
Type: Comparative Study; Journal Article |
Journal Detail:
|
Title: Surgical neurology Volume: 63 ISSN: 0090-3019 ISO Abbreviation: Surg Neurol Publication Date: 2005 Mar |
Date Detail:
|
Created Date: 2005-02-28 Completed Date: 2005-04-12 Revised Date: 2007-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0367070 Medline TA: Surg Neurol Country: United States |
Other Details:
|
Languages: eng Pagination: 249-53; discussion 253 Citation Subset: IM |
Affiliation:
|
Division of Neurosurgery, University of Toronto, Toronto, ON M5T 2S8, Canada. c.hamani@sympatico.ca |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Action Potentials
/
physiology Brain Mapping / instrumentation, methods* Electrophysiology / instrumentation, methods Humans Image Processing, Computer-Assisted / methods Magnetic Resonance Imaging / instrumentation, methods* Medical Illustration Microelectrodes / standards Neural Pathways / physiopathology Neurons / physiology Parkinson Disease / pathology, physiopathology, surgery* Reproducibility of Results Retrospective Studies Statistics as Topic Stereotaxic Techniques / instrumentation* Subthalamic Nucleus / anatomy & histology*, physiopathology, surgery* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Ruptured saccular aneurysm of distal vertebral artery fenestration managed with Guglielmi detachable...
Next Document: Intracranial fungal granuloma: analysis of 40 patients and review of the literature.