The Medical Information Format Structure (IFS) component is basically
a mapping of the syntactic parse trees into a medical information
format structures usable (retrievable) by clinical information
The IFS component reads in parse trees that were filtered,
decomposed, and rearranged along the Polish notational
structures that have been assigned information format types.
The IFS types are defined as:
For each grossly assigned information format types, the
IFS component maps each word or unit phrases into their
corresponding pre-defined IFS labelled nodes (fields).
- IMAGING-INFO (required medically tagged lexicon)
And finally the IFS component issues two roughly
equivalent types of output:
For example, the sentence Today, she had
no cough, chest pain or shortness of breath now becomes
three IFS units conjoined by "," and
"and" (from "or" in
the scope of negation "no").
- Tab delimited output for relational dBMS
- XML format.
The negative word no is a modifier of
the verb had (verb to have
— tensed and past). It can also be a modifier of the
central nouns cough, chest
pain, and shortness of breath. Both
of these analyses are equivalent.
- PATIENT-STATE: Today, she had no cough
- CONJOINED: ,
- PATIENT-STATE: Today, she had no chest pain
- CONJOINED: and
- PATIENT-STATE: Today, she had no shortness of breath
Cf. Naomi Sager, Carol Friedman, Margaret S. Lyman, MD., et al. 1987.
Medical Language Processing: Computer Management of Narrative
Data. Addison-Wesley Publishing Co.