scholarly journals Contact position analysis of deep brain stimulation electrodes on post-operative CT images

2009 ◽  
Vol 151 (7) ◽  
pp. 823-829 ◽  
Author(s):  
Simone Hemm ◽  
Jérôme Coste ◽  
Jean Gabrillargues ◽  
Lemlih Ouchchane ◽  
Laurent Sarry ◽  
...  
Keyword(s):  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Ct Images ◽  
Position Analysis ◽  
Contact Position ◽  
Deep Brain

Accuracy of deep brain stimulation electrode placement using intraoperative computed tomography without microelectrode recording

2013 ◽  
Vol 119 (2) ◽  
pp. 301-306 ◽  
Author(s):  
Kim J. Burchiel ◽  
Shirley McCartney ◽  
Albert Lee ◽  
Ahmed M. Raslan
Keyword(s):  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Ct Images ◽  
Electrode Placement ◽  
Ventricular Wall ◽  
Mr Images ◽  
Intraoperative Ct ◽  
Vector Error ◽  
Significant Difference ◽  
Deep Brain

Object In this prospective study the authors' objective was to evaluate the accuracy of deep brain stimulation (DBS) electrode placement using image guidance for direct anatomical targeting with intraoperative CT. Methods Preoperative 3-T MR images were merged with intraoperative CT images for planning. Electrode targets were anatomical, based on the MR images. A skull-mounted NexFrame system was used for electrode placement, and all procedures were performed under general anesthesia. After electrode placement, intraoperative CT images were merged with trajectory planning images to calculate accuracy. Accuracy was assessed by both vector error and deviation off the planned trajectory. Results Sixty patients (33 with Parkinson disease, 26 with essential tremor, and 1 with dystonia) underwent the procedure. Patient's mean age was 64 ± 9.5 years. Over an 18-month period, 119 electrodes were placed (all bilateral, except one). Electrode implant locations were the ventral intermediate nucleus (VIM), globus pallidus internus (GPI), and subthalamic nucleus (STN) in 25, 23, and 12 patients, respectively. Target accuracy measurements were as follows: mean vector error 1.59 ± 1.11 mm and mean deviation off trajectory 1.24 ± 0.87 mm. There was no statistically significant difference between the accuracy of left and right brain electrodes. There was a statistically significant (negative) correlation between the distance of the closest approach of the electrode trajectory to the ventricular wall of the lateral ventricle and vector error (r2 = −0.339, p < 0.05, n = 76), and the deviation from the planned trajectory (r2 = −0.325, p < 0.05, n = 77). Furthermore, when the distance from the electrode trajectory and the ventricular wall was < 4 mm, the correlation of the ventricular distance to the deviation from the planned trajectory was stronger (r2 = −0.419, p = 0.05, n = 19). Electrodes placed in the GPI were significantly more accurate than those placed in the VIM (p < 0.05). Only 1 of 119 electrodes required intraoperative replacement due to a vector error > 3 mm. In this series there was one infection and no intraparenchymal hemorrhages. Conclusions Placement of DBS electrodes using an intraoperative CT scanner and the NexFrame achieves an accuracy that is at least comparable to other methods.

CT and MRI Image Fusion Error: An Analysis of Co-Registration Error Using Commercially Available Deep Brain Stimulation Surgical Planning Software

2021 ◽  
pp. 1-7
Author(s):  
John F. Burke ◽  
Dominic Tanzillo ◽  
Philip A. Starr ◽  
Daniel A. Lim ◽  
Paul S. Larson
Keyword(s):  
Deep Brain Stimulation ◽  
Image Fusion ◽  
Brain Stimulation ◽  
Ct Images ◽  
Average Error ◽  
Consecutive Series ◽  
Anatomical Landmarks ◽  
Proprietary Software ◽  
Mri Scans ◽  
Deep Brain

<b><i>Introduction:</i></b> During deep brain stimulation (DBS) surgery, computed tomography (CT) and magnetic resonance imaging (MRI) scans need to be co-registered or fused. Image fusion is associated with the error that can distort the location of anatomical structures. Co-registration in DBS surgery is usually performed automatically by proprietary software; the amount of error during this process is not well understood. Here, our goal is to quantify the error during automated image co-registration with FrameLink™, a commonly used software for DBS planning and clinical research. <b><i>Methods:</i></b> This is a single-center retrospective study at a quaternary care referral center, comparing CT and MR imaging co-registration for a consecutive series of patients over a 12-month period. We collected CT images and MRI scans for 22 patients with Parkinson’s disease requiring placement of DBS. Anatomical landmarks were located on CT images and MRI scans using a novel image analysis algorithm that included a method for capturing the potential error inherent in the image standardization step of the analysis. The distance between the anatomical landmarks was measured, and the error was found by averaging the distances across all patients. <b><i>Results:</i></b> The average error during co-registration was 1.25 mm. This error was significantly larger than the error resulting from image standardization (0.19 mm) and was worse in the anterior-posterior direction. <b><i>Conclusions:</i></b> The image fusion errors found in this analysis were nontrivial. Although the estimated error may be inflated, it is sig­nificant enough that users must be aware of this potential inaccuracy, and developers of proprietary software should provide details about the magnitude and direction of co-registration errors.

Nicht-medikamentöse Optionen zur Behandlung pharmakoresistenter Epilepsien

2018 ◽  
Vol 75 (7) ◽  
pp. 448-454
Author(s):  
Thomas Grunwald ◽  
Judith Kröll
Keyword(s):  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Tiefe Hirnstimulation ◽  
Ketogene Diät ◽  
Deep Brain

Zusammenfassung. Wenn mit den ersten beiden anfallspräventiven Medikamenten keine Anfallsfreiheit erzielt werden konnte, so ist die Wahrscheinlichkeit, dies mit anderen Medikamenten zu erreichen, nur noch ca. 10 %. Es sollte dann geprüft werden, warum eine Pharmakoresistenz besteht und ob ein epilepsiechirurgischer Eingriff zur Anfallsfreiheit führen kann. Ist eine solche Operation nicht möglich, so können palliative Verfahren wie die Vagus-Nerv-Stimulation (VNS) und die tiefe Hirnstimulation (Deep Brain Stimulation) in eine bessere Anfallskontrolle ermöglichen. Insbesondere bei schweren kindlichen Epilepsien stellt auch die ketogene Diät eine zu erwägende Option dar.

The Effect of Deep Brain Stimulation for Movement Disorders on Emotions

2008 ◽  
Author(s):  
Jonathan D. Richards ◽  
Paul M. Wilson ◽  
Pennie S. Seibert ◽  
Carin M. Patterson ◽  
Caitlin C. Otto ◽  
...  
Keyword(s):  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Movement Disorders ◽  
Deep Brain

Deep Brain Stimulation Improves Medication Related Addictive Behavior and Associated Quality of Life

2009 ◽  
Author(s):  
Hunter Covert ◽  
Pennie S. Seibert ◽  
Caitlin C. Otto ◽  
Missy Coblentz ◽  
Nicole Whitener ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Addictive Behavior ◽  
Deep Brain
Sign in / Sign up

Export Citation Format

Share Document