SEEG: Ictal and interictal Spikes Modeling [Tutorial Under Construction]
Authors: the park City workshop team
Describe Tutorials/sEEGSpikesModeling here.
The Park City Workshop will be converted into full Brainstorm tutorial;
refer to this page: https://neuroimage.usc.edu/brainstorm/WorkshopParkCity2024
refer to this tutorials:
Introduction
This tutorial introduces some concepts that are specific to the management of intracranial, SEEG recordings in the Brainstorm environment, and explains how to compute maps of epileptogenicity from ictal recordings. It is based on a clinical case from the XXXXX University Hospital, USA.
Note that the operations used here are not detailed, the goal of this tutorial is not to introduce Brainstorm to new users. For in-depth explanations of the interface and theoretical foundations, please refer to the introduction tutorials. Another tutorial is available for processing the same dataset with the [link to the park city workshop].
NOT FOR CLINICAL USE:
The performance characteristics of the methods and software implentation presented in this tutorial have not been certified as medical devices and should be used for research purposes only.
Contents
Download and installation
Requirements: You have already followed all the introduction tutorials and you have a working copy of Brainstorm installed on your computer.
SPM: If you are running Brainstorm from the Matlab environment, for the coregistration between pre- and post-implantation MRI volumes, you need to have the SPM12 toolbox installed on your computer, as a Brainstorm plugin or a custom installation.
With the stand-alone compiled version of Brainstorm: all the needed SPM scripts have been compiled and included in the executable.Download the dataset:
Go to the Download page of this website, and download the file: xxxx.zip
- Unzip it in a folder that is not in any of the Brainstorm folders (program folder or database folder)
Brainstorm:
- Start Brainstorm (Matlab scripts or stand-alone version).
Select the menu File > Create new protocol. Name it "TutorialEpimap" and select the options:
"No, use individual anatomy",
"No, use one channel file per acquisition run".
Import the anatomy
Pre-implantation MRI
Post-implantation MRI/CT
Contacts positions
Display the depth electrodes
Generate default surfaces
Access the recordings
Link the recordings
Display the SEEG recordings
Modeling interictal spikes using Min-Norm Imaging
Modeling ictal wave using Min-Norm Imaging
Modeling ictal onset with Low Voltage Fast Activity (LVFA) using fingerprint analysis (Sensor Space)