Systems and methods for detecting evoked compound action potential (ecap) and/or stimulation artifact features in response to neurostimulation

A method of providing spinal cord stimulation (SCS) to a patient using an implantable pulse generator (IPG), the method comprising:

• generating one or more electrical pulses by the IPG;
• applying the generated one or more electrical pulses from the IPG to stimulate neural tissue of a patient using one or more implanted lead electrodes;
• sensing an electrical response to the one or more applied stimulation electrical pulses using one or more implanted lead electrodes to generate response data;
• processing the response data by applying a transformation to the response data to isolate evoked compound action potential (ECAP) features and obtain a first ECAP latency;
• applying a transformation to model the first ECAP latency as a function of stimulation-sensing distance to generate a patient-specific latency-distance model;
• repeating steps a) to d) to obtain a second ECAP latency;
• fitting the second ECAP latency to the patient-specific latency-distance model to estimate lead migration;
• and
• repositioning the one or more implanted lead electrodes in response to the estimated lead migration.