A novel way to manage and represent unstructured clinical data
summary
An automated pipeline extracts text from PDFs with Document AI, runs the Google Healthcare NLP API to pull entities, relationships, temporality and a per-entity confidence score, maps linked concepts from 17 vocabularies into a FHIR bundle (with Device/DeviceDefinition, Provenance and extensions for confidence and offsets), persists results to BigQuery and Firestore, and surfaces dashboards; handles paper-to-FHIR at scale (example dashboard finds three COPD phrase variants) and leaves low-confidence items for downstream review.
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chapters (26)
- 0:00Introduction and agenda
- 0:23Overview of Google Healthcare NLP API
- 1:03Unstructured data challenges in healthcare
- 3:10Knowledge extraction from clinical text
- 4:13Context assessment and certainty analysis
- 5:17Standard vocabulary mapping with NLP
- 6:00Live demo of NLP API in action
- 8:05Mapping NLP output to FHIR resources
- 10:57Using FHIR extensions for NLP insights
- 13:04Complete FHIR bundle example
- 14:53Building scalable data pipelines
- 16:17Automating NLP with Apache Beam
- 17:21Preprocessing PDFs with Document AI
- 18:24End-to-end automation example
- 21:17Storing NLP results in BigQuery and Firestore
- 21:58Creating dashboards from NLP insights
- 23:45Summary and ecosystem integration
- 24:50Q&A: Market standards and vocabularies
- 27:20Q&A: Provenance and NLP source indicators
- 28:02Q&A: Context and patient narrative importance
- 29:27Q&A: Common NLP use cases in healthcare
- 31:19Q&A: Structured vs unstructured data integration
- 33:04Q&A: NLP for non-clinical documents
- 33:51Q&A: Using confidence scores in practice
- 35:18Q&A: Language and vocabulary support
- 36:44Q&A and closing remarks
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