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• W2947643209 abstract "Quantitative susceptibility mapping (QSM) has been shown to be valuable in direct targeting for subthalamic nucleus (STN) DBS, given its higher quality of contrast between the STN border and adjacent anatomical structures. The objective is to demonstrate the feasibility of using 1.5 T QSM for direct targeting in STN DBS planning. Eleven patients underwent MRI acquisitions using a 1.5 T scanner, including multi-echo gradient echo sequences for generating QSM images. 22 STN targets were planned with direct targeting method using QSM images by one stereotactic neurosurgeon and indirect targeting method using standard protocol by a second stereotactic neurosurgeon. The two physicians were blinded to each other's results. The mean coordinates for the STN using direct targeting relative to the mid-commissural point (MCP) was 11.41 ± 2.43 mm lateral, 2.48 ± 0.53 mm posterior and 4.45 ± 0.95 mm inferior. The mean coordinates for the STN using indirect targeting was 11.79 ± 2.51 mm lateral, 2.55 ± 0.54 mm posterior, and 4.84 ± 1.03 mm inferior. The mean (±SEM) radial error between the direct and indirect target was 0.67 ± 0.14 mm. In cases where DBS electrodes were implanted, the radial difference between the indirect and actual target (1.19 ± 0.30 mm) was statistically equivalent to the radial difference between the direct and actual target (1.0 ± 0.27 mm). Direct targeting of the STN for DBS implantation using 1.5 T QSM was found to be statistically equivalent to standard protocol surgery planning. This may offer a simpler, more intuitive alternative for DBS surgery planning at centers with 1.5 T MRIs." @default.
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• W2947643209 date "2021-02-01" @default.
• W2947643209 modified "2023-10-13" @default.
• W2947643209 title "Evaluating the role of 1.5 T quantitative susceptibility mapping for subthalamic nucleus targeting in deep brain stimulation surgery" @default.
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• W2947643209 doi "https://doi.org/10.1016/j.neurad.2019.04.007" @default.
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