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Characterization of Change and Significance for Clinical Findings in Radiology Reports Through Natural Language Processing.

We built a natural language processing (NLP) method to automatically extract clinical findings in radiology reports and characterize their level of change and significance according to a radiology-specific information model. We utilized a combination of machine learning and rule-based approaches for...

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Published in:Journal of Digital Imaging Vol. 30; no. 3; pp. 314 - 323
Main Authors: Hassanpour, Saeed, Bay, Graham, Langlotz, Curtis
Format: tables/charts Journal Article
Published: Springer Nature Jun2017
Online Access:View this record in EBSCOhost
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      dt: Jun2017
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      pub: Springer Nature
      place: New York, New York
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        atl: Characterization of Change and Significance for Clinical Findings in Radiology Reports Through Natural Language Processing.
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        au:
          Hassanpour, Saeed
          Bay, Graham
          Langlotz, Curtis
        affil: University of Manitoba , Winnipeg Canada
      sug:
        subj:
          Radiology Service
          Reports
          Natural Language Processing
          Health Informatics Evaluation
          Decision Support Systems, Clinical
          Disease Surveillance
          Semantics
      ab: We built a natural language processing (NLP) method to automatically extract clinical findings in radiology reports and characterize their level of change and significance according to a radiology-specific information model. We utilized a combination of machine learning and rule-based approaches for this purpose. Our method is unique in capturing different features and levels of abstractions at surface, entity, and discourse levels in text analysis. This combination has enabled us to recognize the underlying semantics of radiology report narratives for this task. We evaluated our method on radiology reports from four major healthcare organizations. Our evaluation showed the efficacy of our method in highlighting important changes (accuracy 99.2%, precision 96.3%, recall 93.5%, and F1 score 94.7%) and identifying significant observations (accuracy 75.8%, precision 75.2%, recall 75.7%, and F1 score 75.3%) to characterize radiology reports. This method can help clinicians quickly understand the key observations in radiology reports and facilitate clinical decision support, review prioritization, and disease surveillance.
      pubtype: Academic Journal
      doctype:
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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