A grammar-based classification of negations in clinical radiology reports.
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.
Huang
Yang
Y
Stanford Medical Informatics and the Stanford Center for Clinical Informatics, Stanford University Schools of Medicine, CA, USA.
Lowe
Henry J
HJ
D000043:Abstracting and Indexing; D008037:Linguistics; D008499:Medical Records / Q000145:classification*; D009323:Natural Language Processing; D011871:Radiology / Q000145:classification*; D017432:Unified Medical Language System