APPARATUS AND METHOD FOR DETECTING PHRENIC NERVE STIMULATION

摘要

An apparatus and method for detecting phrenic nerve stimulation (PNS) including computing a power spectral density (PSD) of spatial data of a sensor; determining two spectral magnitudes from the PSD; computing a ratio of the two spectral magnitudes; and comparing the ratio to a threshold to detect PNS. In one example, detecting PNS includes computing a PSD of spatial data of an externally placed sensor; determining a diaphragmatic spectral magnitude and a respiratory motion spectral magnitude from the PSD; and computing a ratio of the diaphragmatic spectral magnitude to the respiratory motion spectral magnitude to detect PNS. In one example, detecting PNS includes computing an oscillation amplitude of spatial data of a sensor; computing a baseline wander amplitude of the spatial data of the sensor; computing a ratio of the oscillation amplitude to the baseline wander amplitude; and comparing the ratio to a threshold to detect PNS.

主权项

1. A method for detecting phrenic nerve stimulation (PNS) comprising:
computing a power spectral density (PSD) of spatial data of a sensor; determining a first spectral magnitude and a second spectral magnitude from the power spectral density (PSD); computing a ratio of the first spectral magnitude to the second spectral magnitude; and comparing the ratio to a threshold, wherein if the ratio is equal or greater than the threshold, determining that phrenic nerve stimulation (PNS) is present, and wherein if the ratio is less than the threshold, determining that no PNS or minimal PNS is present.