Hi. I am Jin Choi from Ajou University Hospital, South Korea. I originally studied biosignals and recently joined OHDSI.
We want to integrate biosignals into the OMOP-CDM database. Are there any researchers who have biosignals and want to store them in a standardized structure? Let’s collaborate.
Our hospital has 1.72 million cases(750,000 patients) of standard 12-lead ECG in XML format(From GE device, including 500 Hz waveform data) .
Also, we have 30,000 patients’ ECG, pulse, and respiratory rate waveform data (from ICU patient monitoring devices)
We also have OMOPed EMR (CDM v5.3) that can match the above biosignals.
In my opinions, the possible integration methods are:
1. Extract only clinical features from ECG (QT interval, ST elevation, P axis, etc.) and insert them into the measurement or observation table. (Simplest)
2. Put the ECG records into the Measurement table and put the original ECG files’ path in the Measurement_source_value column. Then, we can extract waveform data using this path.
3. Produce a separate CDM extension model for biosignal (CDM for waveform biosignal data)
4. Any method you suggest
If you are already doing research using biosignals, we are open to any proposal (External validation…etc.)
And Also, below is a list of clinical features in our ECG data and their mapping.
If you have any advice on our ECG mapping, please tell me.