This repository contains the timestamps and human-annotated truth of asystole and ventricular tachycardia alarms in the MIMIC-II waveform database, as well as human-annotated signal quality of ECG leads, arterial blood pressure, and photoplethysmograms around the alarms. You can load the waveforms using the WFDB software. For a quick view, you can also use the PhysioNet ATM.

There are 349 asystole and 1088 vtach alarms.

"vtach_data.mat" and "asys_data.mat" contain:
	subList - waveform record IDs
	times_hms - timestamp of the alarm in elapsed time since the beginning of the record
	times_sec - timestamp of the alarm in the number of seconds since the beginning of the record

"final_vtach_als.mat" and "final_asys_als.mat" contain alarm truths. The annotations are coded as follows:
	0 - False
	1 - True
	2 - Not sure

"final_vtachs.mat" and "final_asystoles.mat" contain signal quality data. Each signal type is a separate vector. The annotations are coded as follows:
	0 - Bad signal quality
	1 - Good signal quality
	2 - Signal is absent
	3 - Maybe usable