Accuracy of Customized Miniature Stereotactic Platforms
- 1 May 2005
- journal article
- clinical trial
- Published by S. Karger AG in Stereotactic and Functional Neurosurgery
- Vol. 83 (1), 25-31
- https://doi.org/10.1159/000085023
Abstract
In this study, a new system was evaluated for implanting deep-brain stimulators based on a one-piece platform for each trajectory customized from a preoperative planning image. During surgery, the platform is attached to skull-implanted posts that extend through the scalp. The platform acts as a miniature stereotactic frame to provide guidance for parallel cannulas as they are advanced through a burr hole to the target. Accuracy is determined from a postoperative CT. For each implantation, the distance between the position observed in the postoperative image and the position calculated relative to the platform from the preoperative image is our measure of error. Because this measure incorporates the surgical error of electrode anchoring, brain shift between preoperative and postoperative scanning, and error in the measurement of the position of the electrode in CT, it will tend to overestimate the true error. The mean error was 2.8 mm for 20 implantations. These data reflect favorably the accuracy of this system when compared with others.Keywords
This publication has 11 references indexed in Scilit:
- Surgery of the Subthalamic Nucleus: Use of Movement-related Neuronal Activity for Surgical NavigationNeurosurgery, 2003
- Deep brain stimulation of the subthalamic nucleus for Parkinson's disease: a therapy approaching evidence-based standardsZeitschrift für Neurologie, 2003
- Lack of agreement between direct magnetic resonance imaging and statistical determination of a subthalamic target: the role of electrophysiological guidanceJournal of Neurosurgery, 2002
- Implantation of deep brain stimulators into subthalmic nucleus: technical approach and magnetic imaging—verified electrode locationsJournal of Neurosurgery, 2002
- Documentation of electrode localizationMovement Disorders, 2002
- Intraoperative micro- and macrostimulation of the subthalamic nucleus in Parkinson's diseaseMovement Disorders, 2002
- Neurophysiological identification of the subthalamic nucleus in surgery for Parkinson's diseaseAnnals of Neurology, 1998
- Registration of head volume images using implantable fiducial markersIEEE Transactions on Medical Imaging, 1997
- An automatic technique for finding and localizing externally attached markers in CT and MR volume images of the headIEEE Transactions on Biomedical Engineering, 1996
- An Independent Application Accuracy Evaluation of Stereotactic Frame SystemsStereotactic and Functional Neurosurgery, 1992