Henry J. Lowe, MD

A grammar-based classification of negations in clinical radiology reports.
Huang Y, Lowe HJ. AMIA Annu Symp Proc. 2005: 988
We describe the development of a classification scheme of negations based on syntactical categories of negative words, and patterns of negation. Each category contains a negative word or phrase and a pattern to locate negated terms. The classification was derived through literature study and manual inspection of 500 radiology reports of six common imaging modalities.

PubMedID: 16779275