Please enable JavaScript.
Coggle requires JavaScript to display documents.
UMLS A UNIFIED MEDICAL LANGUAGE SYSTEM (Problems a biomedical researcher…
UMLS A UNIFIED MEDICAL LANGUAGE SYSTEM
Problems a biomedical researcher runs into
Large Variety of types of medical terminolgy systems
CPT
ICD-10
SNOMED-CT
RXNORM
LOINC
MeSH
etc,etc
Many Biomedical Terminologies in Use
Come in a variety of forms
Do not link to each other
Not always available/$$
SOLUTION
Unify the medical language into one system
The UMLS
Bonds many Vocabularies together
The UMLS Provides:
Access to Terminology Data
Terminology is not always availaible
Solution: NLM has negotiated the rights
to redistribute terminologies via
UMLS for use in research
3 ways to access
API
Web Interface
Download
Semantic Network
Metatheasaurus
209 Terminologies
25 Languages
3.8 Million Concepts
14 Million Names
78 Million relationsships
Specialty Lexicon
Tools
Metamorphosys
Database Load Scripts
Local Browser Tool
A Common Data Model for Terminologies
Example
Diabetic patients
on GLP- 1 Drugs with
HbA1C >10
Unfortunately there are
2,666 ways to code diabetes
in the many terminologies
Can use CUI
codes from UMLS to
represent Diabetes(C0011847),
GLP-1 (C2916791), and HbA1C
(C03366781) to query database.
Problem: Terminology data
is represented in a variety
of formats according to a
variety of data models
Solution: The UMLS
Represents all terminology
data according to
a standard data model
Case Study
How do you make
patient data ready for
research ?
Solution: Integrate identifiers
hierarchies and relationships
from UMLS
The Cleveland Clinic converts
EHR data from 185 tables to
18 research ready tables annotated
with UMLS identifiers
Result: Cleveland Clinic can do live population
exploration as well as produce datasets for
analysis faster than it takes most organizations
to simply identify their base population.
Interoperability through Synonymy
Problem: Terminologies
are not always linked
together
UMLS asserts synonymy
by grouping nanes from
different terminologies into
concepts
14 million names
in UMLS !
Each name is an
'atom' and gets its
own atom identifier
number
Each concept gets
a CUI or UMLS
concept identifier
CUI = C0001403
Addison Dz 'atoms'
include Addison's dz,
Primary Adrenal Insufficiency
Primary hypoadrenalism,etc
each with its own
atom identifier , i.e
A6954527,A17799651, etc
What is a medical terminology ?
A set of names and concepts
and the relationships between them
Example
CPT
ICD-10
SNOMED-CT
RxNorm
LOINC
ETC
Many different
terminologies included
in UMLS
Why do we need
a medical
terminology ?
Sharing Info Is Hard !
Meaning/Context
Can be lost
Same word had
different meanings
Different words
have same meaning
Terminologies provide a
standard language for
Information Exchange