Systems and methods for clinical neuronavigation
Systems and methods for clinical neuronavigation in accordance with embodiments of the invention are illustrated. One embodiment includes a method for generating a brain stimulation target, including obtaining functional magnetic resonance imaging (fMRI) image data of a patient's brain, where brain imaging data describes neuronal activations within the patient's brain, determining a brain stimulation target by mapping at least one region of interest to the patient's brain, locating functional subregions within the at least one region of interest based on the fMRI image data, determining functional relationships between at least two brain regions of interest, generating parameters for each functional subregion, generating a target quality score for each functional subregion based on the parameters and selecting a brain stimulation target based on its target quality score and the patient's neurological condition.
1. A method for generating a brain stimulation target, comprising:
obtaining imaging data of a patient's brain, where the imaging data describes neuronal activations within the patient's brain;
determining a brain stimulation target by:
identifying a region of interest within the patient's brain using the imaging data;
identifying a plurality of regions of the patient's brain receptive to focal neuromodulation;
determining functional relationships between the region of interest and each region in the plurality of regions using the imaging data;
generating a target quality score for each region in the plurality of regions indicating connectivity strength between the region of interest and the respective region in the plurality of regions;
selecting at least one region in the plurality of regions as a brain stimulation target based on the at least one region's target quality score; and
treating a neurological condition of the patient by delivering neurostimulation to the selected at least one region.
2. The method of claim 1 , wherein the imaging data describes neuronal activity during a resting state.
3. The method of claim 1 , wherein obtaining the imaging data further comprises preprocessing the imaging data.
4. The method of claim 3 , wherein preprocessing the imaging data comprises performing at least one preprocessing step selected from the group consisting of physiological noise regression, slice-time correction, motion correction, co-registration, band-pass filtering, and de-trending.
5. The method of claim 1 , wherein a brain atlas is used to identify the region of interest.
6. The method of claim 1 , wherein each region in the plurality of regions describes homogenous brain activity.
7. The method of claim 1 , wherein each region in the plurality of regions is identified using hierarchical agglomerative clustering.
8. The method of claim 1 , wherein each region in the plurality of regions is parameterized using parameters selected from the group consisting of size of the region, concentration of voxels that make up the region, correlation between the region and other regions of the plurality of regions, and accessibility of the region to a focal neuromodulation device.
9. The method of claim 1 , wherein the target quality score reflects an impact of focal neuromodulation at the respective region in the plurality of regions on the region of interest.
10. The method of claim 1 , wherein the selection of the at least one region is further based on the neurological condition of the patient.
11. The method of claim 10 , where the neurological condition is clinical depression.
12. The method of claim 1 , further comprising stimulating the brain stimulation target using a focal neuromodulation device in accordance with an aTBS protocol.
13. A neuronavigation system, comprising:
at least one processor; and
a memory containing a neuronavigation application, where the neuronavigation application directs the at least one processor to:
obtain imaging data describing neuronal activations within a patient's brain;
identifying a region of interest within the patient's brain using the imaging data;
identifying a plurality of regions of the patient's brain receptive to focal neuromodulation;
determine functional relationships between the region of interest and each region in the plurality of regions;
generate a target quality score for each region in the plurality of regions indicating connectivity strength between the region of interest and the respective region in the plurality of regions;
select at least one region in the plurality of regions as a brain stimulation target based on the at least one region's target quality score and a neurological condition of the patient; and
treat the neurological condition of the patient by delivering neurostimulation to the selected at least one region.
14. The system of claim 13 , wherein the imaging data describes neuronal activity during a resting state.
15. The system of claim 13 , wherein the neuronavigation application further directs the at least one processor to preprocess the imaging data.
16. The system of claim 15 , wherein to preprocess the imaging data, the neuronavigation application further directs the at least one processor to perform at least one preprocessing step selected from the group consisting of physiological noise regression, slice-time correction, motion correction, co-registration, band-pass filtering, and de-trending.
17. The system of claim 13 , wherein a brain atlas is used to identify the region of interest.
18. The system of claim 13 , wherein each region in the plurality of regions describes homogenous brain activity.
19. The system of claim 13 , wherein each region in the plurality of regions is located using hierarchical agglomerative clustering.
20. The system of claim 13 , wherein the neuronavigation application further directs the at least one processor to parameterize each region in the plurality of regions in order to generate the target quality scores, using at least one parameter selected from the group consisting of size of the region, concentration of voxels that make up the region, correlation between the region and other regions of the plurality of regions, and accessibility of the region to a focal neuromodulation device.