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Natural language processing systems for capturing and standardizing unstructured clinical information: A systematic review.

Abstract：

:We followed a systematic approach based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses to identify existing clinical natural language processing (NLP) systems that generate structured information from unstructured free text. Seven literature databases were searched with a query combining the concepts of natural language processing and structured data capture. Two reviewers screened all records for relevance during two screening phases, and information about clinical NLP systems was collected from the final set of papers. A total of 7149 records (after removing duplicates) were retrieved and screened, and 86 were determined to fit the review criteria. These papers contained information about 71 different clinical NLP systems, which were then analyzed. The NLP systems address a wide variety of important clinical and research tasks. Certain tasks are well addressed by the existing systems, while others remain as open challenges that only a small number of systems attempt, such as extraction of temporal information or normalization of concepts to standard terminologies. This review has identified many NLP systems capable of processing clinical free text and generating structured output, and the information collected and evaluated here will be important for prioritizing development of new approaches for clinical NLP.

journal_name

J Biomed Inform

journal_title

Journal of biomedical informatics

authors

Kreimeyer K,Foster M,Pandey A,Arya N,Halford G,Jones SF,Forshee R,Walderhaug M,Botsis T

doi

10.1016/j.jbi.2017.07.012

subject

Has Abstract

pub_date

2017-09-01 00:00:00

pages

14-29

eissn

1532-0464

issn

1532-0480

pii

S1532-0464(17)30168-5

journal_volume

73

pub_type

杂志文章,评审

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