@bgevam The following are from Bahmni perspective, but maybe equally appropriate for OpenMRS.
ERP is not a replacement for Mirth (now NextGen). If you want to leverage Mirth as HL7 Interface engine, then I would say the following approaches may be suitable for you
- Connecting Lab Analyzers - you can connect OpenELIS <> Mirth <> Analyzers. I think in Bahmni Ecosystem, both HL7 and ASTM were used in combination with Mirth.
- Similarly with Radiology, although Dcm4chee, is equally capable of connecting to any Hl7 compliant modality
Connecting via the above approach, has the advantage that when the results are captured, the results/references will automatically flow to the EMR component. In addition, you take advantage of the Lab workflows in the process using ELIS/DCM4CHEE.
Alternatively, just implement a small microservice and interface with Mirth (like you said about ERP Connect). Of course, you will have to build UIs appropriate for Labs (Clinical/Path/Rad) workflows.