Clinical Accuracy of a Customized Stereotactic Platform for Deep Brain Stimulation after Accounting for Brain Shift
- 5 January 2010
- journal article
- research article
- Published by S. Karger AG in Stereotactic and Functional Neurosurgery
- Vol. 88 (2), 81-87
- https://doi.org/10.1159/000271823
Abstract
Previous studies have evaluated the accuracy of several approaches for the placement of electrodes for deep brain stimulation. In this paper, we present a strategy to minimize the effect of brain shift on the estimation of the electrode placement error (EPE) for a stereotactic platform in the absence of intraoperative imaging data, and we apply it to the StarFix microTargeting® Platform (FHC Inc., Bowdoin, Me., USA). This method involves comparing the intraoperative stereotactic coordinates of the implant with its position in the postoperative CT images in a population for which the effect of brain shift is minimal. The study we have conducted on 75 patients demonstrates that the EPE is overestimated at least by about 60% if brain shift is not taken into account, and shows a clinical accuracy of 1.24 ± 0.37 mm for the StarFix frame, which is similar to the reported G frame accuracy and better than the reported Nexframe accuracy (2.5 ± 1.4 mm) [Stereotact Funct Neurosurg 2007;85:235–242].Keywords
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