Abstract: A visualization system for a medical procedure. The system includes a medical device, a localization system, a signal processing system, and a display. The medical device includes one or more position sensors. The localization system is configured to generate an magnetic field and/or an impedance field to track the one or more position sensors. The signal processing system is configured to receive input location signals from the one or more position sensors. The signal processing system includes low pass filter to attenuate oscillation in the input location signals from cardiac motion and a low pass filter controller to generate a reset output communicated to the low pass filter to reset the low pass filter. The display provides real-time visualization of the medical device.

Abstract: A method for assessing lesion formation based on monitored electrograms by receiving intracardiac electrograms from one or more electrodes located at a distal end of a catheter positioned within a patient and detecting an activation timepoint and selecting a roving activation interval (RAI) based on the detected activation timepoint. A continuous wavelet transform (CWT) is applied to one or more of the received intracardiac electrograms within each RAI to generate a power spectrum response, a phase spectrum response, or both a power spectrum and a phase spectrum response. Per-RAI metrics are calculated based on the power spectrum response, phase spectrum response, or both the power spectrum response and the phase spectrum response. A per-lesion metric is calculated based on the one or more per-RAI metrics and a lesion assessment marker is displayed based on the calculated per-lesion metric, wherein the lesion assessment marker provides an indication of lesion formation.

Abstract: The present disclosure provides systems and methods for generating a local activation time (LAT) map. A method includes receiving at least one reference electrogram, receiving at least one roving electrogram, detecting cardiac activations in the at least one reference electrogram, detecting roving cardiac activations in the at least one roving electrogram, identifying, at a trigger time, a most recent reference cardiac activation of the detected reference cardiac activations, identifying, a corresponding roving cardiac activation of the detected roving cardiac activations that is closest in time to the most recent reference cardiac activation, the corresponding roving cardiac activation identified independent of any roving activation interval (RAI), computing, a LAT as a time difference between the most recent reference cardiac activation and the corresponding roving cardiac activation, and generating and displaying, a LAT map based on the computed LAT.

Abstract: Apparatus and methods for monitoring activity use video information to track activity of a target at a given location. In an embodiment, the target is segmented into portions and a value of a biometric attribute is associated with the target and compared against values of a biometric attributes of corresponding portions of other images to identify the target and determine a length of time that the target is at the given location.