1. Access to Information Sources through Controlled Vocabulary James J. Cimino, M.D. Department of Medical Informatics Columbia University

2. old slides type 2, 3 and 4 medline button screens

3. One-Stop Information Shopping? Information Resources World Wide Web (The Hyperdocument) Biblio- graphic Database Textbook Expert System Community Practitioner

4. One-Touch Information Shopping Information Resources World Wide Web (The Facilitator) Biblio- graphic Database Textbook Expert System Community Practitioner

5. Building Infobuttons to the Web Patient Data User Profile Care Setting Context Query Generator Source Selection Query Transfer Query Selection Results Retrieval

6. Clinical Information System Method 1 - Use the Data Extract concepts directly from patient data Cholesterol Guideline Cholesterol Level Medline Pulmonary Congestion Webpath Pulmonary Congestion Cholesterol Level Pulmonary Congestion

7. Screen shots - 10 Cholesterol results to guideline –chem20 –What diet? –Recommendation lipid lowering agent X-ray reports to variety of Web resources –X-ray report –Findings –Questions –Medline results –Medline abstract –second set of questions –Webpath

8. Medical Entities Dictionary Method 2 - Link Data to Source Use literal data associated with concepts Clinical Information System Drug/Diet Interactions DIG.html Physician's Desk Reference Lanoxin Tablets Digoxin 0.125mg Tab Interaction Code: "DIG" Trade Name: "Lanoxin" Digoxin 0.125mg Tab

9. more screen shots - 4 Patient medications to drug references –drug order –diet info –PDR

10. Method 3 - Get Related Concepts Extract concepts directly from patient data Medical Entities Dictionary Clinical Information System Cholesterol Level Medline Cholesterol DXplain Hypercholesterolemia

11. screen shots galore - 7 Laboratory tests to Medline –Chem20 –Question list –DXplain Diseases (list) –DXplain Disease (result) Laboratory tests to DXplain –Chem20 –List of findings –Differential diagnosis

12. Conclusions Controlled vocabularies help: –predict information need –select appropriate resource –automate the query process The Web makes the rest easy One-touch shopping: improves usability Lowering barriers to use improves usefulness

13. Acknowledgments Gai Elhanan Socrates Socratous Qing Zeng National Library of Medicine www.cpmc.columbia.edu/cisdemo/infobutton