Systems and methods for stimulating and monitoring biological tissue
The invention generally relates to apparatuses and methods for stimulating and monitoring biological tissue. In certain aspects, the invention provides a system for stimulating and monitoring tissue, the system including a first energy source, a second energy source, and an imaging device, in which the system is configured such that the first and second energy sources target the same region of tissue and the combined effect of the first and second energy sources stimulates the region of tissue.
1. A system for stimulating and monitoring tissue, the system comprising:
a first non-invasive energy source that emits an electric field;
a second non-invasive energy source that emits a mechanical field;
an imaging device; and
a controller comprising one or more programs that are configured to tune stimulation by identifying tissue distribution data of a subject from imaging data received from the imaging device, determining tissue boundaries in a stimulation area from the tissue distribution data, constructing a computational mesh that captures tissue segmentation demonstrated in the imaging data and accounts for tissue distribution and tissue boundaries, and calculating altered tissue mechanical properties in the stimulation area relative to the electrical field to be applied in the stimulation area, wherein the controller outputs a dose to be provided by the first and/or second non-invasive energy sources.
2. The system according to claim 1 , wherein the imaging device is selected from the group consisting of: a magnetic resonance imaging device, a functional magnetic resonance imaging device, a device for performing a CT scan, and a device for performing electroencephalography.
3. The system according to claim 1 , wherein the imaging device provides feedback to an operator as to the effect of the first and second energy sources on the tissue.
4. The system according to claim 1 , wherein the second energy source is an ultrasound device.
5. The system according to claim 1 , wherein the electric field is pulsed.
6. The system according to claim 1 , wherein the electric field is time varying.
7. The system according to claim 1 , wherein the electric field is pulsed a plurality of times, and each pulse may be for a different length of time.
8. The system according to claim 1 , wherein the electric field is time invariant.
9. The system according to claim 1 , wherein the mechanical field is pulsed.
10. The system according to claim 1 , wherein the mechanical field is time varying.
11. The system according to claim 1 , wherein the mechanical field is pulsed a plurality of times, and each pulse may be for a different length of time.
12. The system according to claim 1 , wherein the electric field is focused.
13. The system according to claim 1 , wherein the mechanical field is focused.
14. The system according to claim 1 , wherein both the electric field and the mechanical field are focused.
15. The system according to claim 1 , wherein the first and second energy sources are applied to a structure or multiple structures within the brain or the nervous system selected from the group consisting of: dorsal lateral prefrontal cortex, any component of the basal ganglia, nucleus accumbens, gastric nuclei, brainstem, thalamus, inferior colliculus, superior colliculus, periaqueductal gray, primary motor cortex, supplementary motor cortex, occipital lobe, Brodmann areas 1-48, primary sensory cortex, primary visual cortex, primary auditory cortex, amygdala, hippocampus, cochlea, cranial nerves, cerebellum, frontal lobe, occipital lobe, temporal lobe, parietal lobe, sub-cortical structures, and spinal cord.
16. The system according to claim 1 , wherein the tissue is neural tissue.
17. The system according to claim 16 , wherein the effect of the stimulation alters neural function past the duration of stimulation.