Finding QRS onset and offset

[OmkarPathak]

Hi, Is there a way in which we cam find the QRS onset and offset. I want to determine the QRS width using this package but am not able to do so. Q,R and S peaks are detected correctly but I cannot get a way to find Q onset and offset. Any suggestions would be helpful.

[welcome[bot]]

Hi 👋 Thanks for reaching out and opening your first issue here! We'll try to come back to you as soon as possible. ❤️

[levsilva]

Hi @OmkarPathak,

I believe the "ECG_R_Onsets" and "ECG_R_Offsets" from the "ecg_delineate" function are the fiducial points you are looking for. Look at the figure generated by the method here: https://neuropsychology.github.io/NeuroKit/examples/ecg_delineate/ecg_delineate.html.

Hope it helps.

[DominiqueMakowski]

thanks @levsilva for helping the community, much appreciated ☺️

additionally @OmkarPathak, you can also try delineating with other method (e.g., cwt). However if you're signal is too noisy it is possible that the onsets / offsets of each wave won't be correctly detected.

[stale[bot]]

Is this still relevant? If so, what is blocking it? Is there anything you can do to help move it forward?

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.