arXiv AI By Xinye Yang, Yuli Wang, Cheng Ting Lin, Harrison Bai

EHR2Trace: Auditable EHR Data Infrastructure for Patient World Models and Clinical Agents

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EHR2Trace is a system that transforms electronic health records from multiple sources into a standardized, traceable event format suitable for training and evaluating patient world models and clinical agents. It links each event to its original record, separates the event time from the time the information became available, and distinguishes between medication orders, dispensing, and administration. The tool supports both OMOP and MEDS data models, includes automated validation, and was tested on three clinical datasets, converting 846.4 million events and detecting all injected faults.

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