Hello, I am Jin Choi from Ajou University.
I am working on research linking bio-signals and CDM.
Recently we want to measure the QT interval from electrocardiogram data from a continuous patient monitoring device(ICU).
The QT interval was traditionally measured only on a 12-electrode ECG.
Accordingly, existing QT interval concepts seem to assume a 12-electrode electrocardiogram (not including data about measurement method).
In the future, More diverse devices will generate ECG data (patient monitoring devices, wearable devices…etc.)
What should I do if these same measurements are from different devices?
Possible solution(In my opinion):
- Among existing concepts, find and use the most similar ones
- Create a new extended term (like ‘QT interval from patient monitoring device’)
- Insert information about measurement method into Measurement_source_concept_id
- Create a separate column for the measurement method in the measurement table
I’m going to choose solution 1 right now. Accordingly, the QT interval from the patient monitoring device will be mapped to 3004627 (QT interval Lead II, LOINC)
In my opinion, number 2 seems to be the most appropriate solution, but the process can be slow. In the future, if various devices such as wearable devices are included in the CDM, there may be a problem of generating a huge number of terms.
Number 3 is an easy solution, but it seems to go against the schema of the CDM.
Number 4 seems most ideal to me, but there seems to be a problem with changing the CDM schema.
Is there any discussion about this problem?
I think people working with MIMIC WFDB will have similar problems.