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Hercules Daliani
Hercules Daliani
Hercules Daliani
Hercules Daliani
Hercules Daliani
Hercules Daliani
Hercules Daliani
Hercules Daliani
Hercules Daliani
Hercules Daliani
Hercules Daliani
Hercules Daliani
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Hercules Daliani

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  • 1. Reusing clinical documentationfor better healthHercules DalianisIT for HealthDepartment of Computer and Systems Sciences (DSV)hercules@dsv.su.se
  • 2. Clinical documentation•  Legal reasons to document health care•  Documentation is also supportive/memory notes for cliniciansHercules Dalianis/Global Forum, Nov 8, 2011 2
  • 3. Primary user•  Writers and readers –  23 000 only in Stockholm•  Health personnel –  Physicians, nurses, psychologist, therapists, etc.•  Hospital managementHercules Dalianis/Global Forum, Nov 8, 2011 3
  • 4. Why clinical text mining•  4-10 million pages of patient records are produced each year in Sweden (pop. 10 million)•  The records contain both structured data (age, gender, admission date, clinic, ICD-10 diagnosis codes) and unstructured data (free text, doctor notes, reasoning, etc.)Hercules Dalianis/Global Forum, Nov 8, 2011 4
  • 5. Hercules Dalianis/Global Forum, Nov 8, 2011 5
  • 6. Problems with health documentationprocesses•  One third of the consultation time is writing and reading patient records•  Poor navigation support•  Very little of the information in the patient documentation repository is reused•  ICD-coding completely manually, low quality and costly –  15 percent wrong or missing codes –  Expensive: $25 billion/year in U.S. (Lang, 2007)Hercules Dalianis/Global Forum, Nov 8, 2011 6
  • 7. Solutions?•  Yes, there are solutions!Hercules Dalianis/Global Forum, Nov 8, 2011 7
  • 8. Better overview of the records –  Automatic text summarisation •  Extraction of symptoms and diagnosis. •  Extraction of drugs •  Time line –  Better navigationHercules Dalianis/Global Forum, Nov 8, 2011 8
  • 9. Hercules Dalianis 9
  • 10. Improved readability and usability 30 seconds faster reading and writing on each consultation will result in a huge saving –  In Stockholm one would save 20 MEuro/ year!Hercules Dalianis/Global Forum, Nov 8, 2011 10
  • 11. Automatic ICD-10 code assignment•  Use previous assigned diagnosis codes (ICD-10) to patient records to propose new codes. –  Use random indexing on all previous available patient records (> millions of records) to create a words space model.•  Enter a diagnosis one gets an ICD-10-code•  82 percent correct assigned codes in RheumatologyHercules Dalianis/Global Forum, Nov 8, 2011 11
  • 12. Conclusions•  Reuse all patient records for automatic summarisation•  Better navigation saves money and time•  Automatic ICD-code assignment gives higher quality and saves timeHercules Dalianis/Global Forum, Nov 8, 2011 12

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