VOA generation system and method using a fiber specific analysis
First Claim
1. A computer system for generating an estimated volume of activation (VOA), the system comprising:
- a computer processor configured to;
for each of a plurality of neural elements that are in a vicinity of a leadwire;
determine a respective threshold activation value; and
determine whether a user-input stimulation value to be applied to the leadwire meets the respective threshold activation value of the respective neural element; and
generate a surface structure corresponding to those of the neural elements whose respective threshold activation values have been determined to be met by the user-input stimulation value;
wherein, for each of the plurality of neural elements, the determination of the respective threshold activation value includes;
determining at least one of a peak voltage level along the respective neural element or a peak second difference voltage values along the respective neural element; and
obtaining the respective threshold activation value based on the respective determined at least one of the peak voltage level or the peak second difference voltage value.
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Abstract
A system and method for generating an estimated volume of activation (VOA) corresponding to settings applied to a stimulation leadwire includes a processor performing the following: determining, for each of a plurality of neural elements, one or more respective parameters characterizing an electrical distribution along the neural element, looking up the one or more parameters for each of the neural elements in a look-up table (LUT), obtaining threshold values for each of the neural elements recorded in the LUT in association with the looked-up parameters, comparing, for each of the neural elements, a value of the leadwire settings to each of the respective threshold value, estimating based on the comparisons which of the neural elements would be activated by the settings, and generating a structure corresponding to a region including the neural elements estimated to be activated.
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Citations
20 Claims
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1. A computer system for generating an estimated volume of activation (VOA), the system comprising:
a computer processor configured to; for each of a plurality of neural elements that are in a vicinity of a leadwire; determine a respective threshold activation value; and determine whether a user-input stimulation value to be applied to the leadwire meets the respective threshold activation value of the respective neural element; and generate a surface structure corresponding to those of the neural elements whose respective threshold activation values have been determined to be met by the user-input stimulation value; wherein, for each of the plurality of neural elements, the determination of the respective threshold activation value includes; determining at least one of a peak voltage level along the respective neural element or a peak second difference voltage values along the respective neural element; and obtaining the respective threshold activation value based on the respective determined at least one of the peak voltage level or the peak second difference voltage value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A computer implemented method for generating an estimated volume of activation (VOA), the method comprising:
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for each of a plurality of neural elements that are in a vicinity of a leadwire; determining, by a computer processor, a respective threshold activation value; and determining, by the computer processor, whether a user-input stimulation value to be applied to the leadwire meets the respective threshold activation value of the respective neural element; and generating, by the computer processor, a surface structure corresponding to those of the neural elements whose respective threshold activation values have been determined to be met by the user-input stimulation value; wherein, for each of the plurality of neural elements, the determination of the respective threshold activation value includes; determining, by the computer processor, at least one of a peak voltage level along the respective neural element or a peak second difference voltage values along the respective neural element; and obtaining, by the computer processor, the respective threshold activation value based on the respective determined at least one of the peak voltage level or the peak second difference voltage value. - View Dependent Claims (17, 18, 19, 20)
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Specification