Access to Information Sources through Controlled Vocabulary

James J. Cimino, M.D.

Department of Medical Informatics

Columbia University

old slides

• type 2, 3 and 4

• medline button screens

One-Stop Information Shopping?

InformationResources

World Wide Web(The Hyperdocument)

Biblio-graphic

Database

Textbook

ExpertSystem

CommunityPractitioner

One-Touch Information Shopping

InformationResources

World Wide Web(The Facilitator)

Biblio-graphic

Database

Textbook

ExpertSystem

CommunityPractitioner

Building Infobuttons to the Web

PatientData

UserProfile

CareSetting

Context

QueryGenerator

SourceSelection

QueryTransfer

QuerySelection

ResultsRetrieval

Clinical Information System

Method 1 - Use the Data

• Extract concepts directly from patient data

Cholesterol Guideline

CholesterolLevel

Medline

PulmonaryCongestion

Webpath

PulmonaryCongestion

CholesterolLevel

PulmonaryCongestion

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

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 TabInteraction Code: "DIG"Trade Name: "Lanoxin"

Digoxin 0.125mg Tab

more screen shots - 4

• Patient medications to drug references

– drug order– diet info– PDR– PDR

Method 3 - Get Related Concepts

• Extract concepts directly from patient data

Medical Entities Dictionary

Clinical Information System

Cholesterol Level

Cholesterol Level Medline

Cholesterol

Cholesterol DXplain

HypercholesterolemiaHypercholesterolemia

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

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

Acknowledgments

• Gai Elhanan

• Socrates Socratous

• Qing Zeng

• National Library of Medicine

www.cpmc.columbia.edu/cisdemo/infobutton