AMIA Annu Symp Proc - Natural language processing for lines and devices in portable chest x-rays.

Tópicos

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{ record(1888) medic(1808) patient(1693) }
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{ health(1844) social(1437) communiti(874) }
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{ high(1669) rate(1365) level(1280) }
{ cancer(2502) breast(956) screen(824) }
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{ drug(1928) target(777) effect(648) }
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{ detect(2391) sensit(1101) algorithm(908) }

Resumo

Radiology reports are unstructured free text documents that describe abnormalities in patients that are visible via imaging modalities such as X-ray. The number of imaging examinations performed in clinical care is enormous, and mining large repositories of radiology reports connected with clinical data such as patient outcomes could enable epidemiological studies, such as correlating the frequency of infections to the presence or length of time medical devices are present in patients. We developed a natural language processing (NLP) system to recognize device mentions in radiology reports and information about their state (insertion or removal) to enable epidemiological research. We tested our system using a reference standard of reports that were annotated to indicate this information. Our system performed with high accuracy (recall and precision of 97% and 99% for device mentions and 91-96% for device insertion status). Our methods are generalizable to other types of radiology reports as well as to other information extraction tasks and could provide the foundation for tools that enable epidemiological research exploration based on mining radiology reports.

Resumo Limpo

radiolog report unstructur free text document describ abnorm patient visibl via imag modal xray number imag examin perform clinic care enorm mine larg repositori radiolog report connect clinic data patient outcom enabl epidemiolog studi correl frequenc infect presenc length time medic devic present patient develop natur languag process nlp system recogn devic mention radiolog report inform state insert remov enabl epidemiolog research test system use refer standard report annot indic inform system perform high accuraci recal precis devic mention devic insert status method generaliz type radiolog report well inform extract task provid foundat tool enabl epidemiolog research explor base mine radiolog report

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