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Medical Case-Based Retrieval of Patient Records Using the RadLex Hierarchical Lexicon

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Multimodal Retrieval in the Medical Domain (MRDM 2015)

Part of the book series: Lecture Notes in Computer Science ((LNISA,volume 9059))

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Abstract

We present a new method for the retrieval radiological cases from a database of clinical cases described by terms from the RadLex lexicon. The input is an database of cases and a query consisting of the patient volumetric scan, a user-defined region of interest in it, and a list of RadLex from the radiological report. The output is list of the most relevant cases from the database in decreasing order. Our method uses the RadLex terms and their hierarchical representation to define a similarity metric between terms based on their relative location in the hierarchy. For this purpose, we develop the Augmented RadLex Graph, a data structure that augments the RadLex hierarchy with links derived from the terms in the case reports, and a search algorithm that ranks case similarity based on the link distance between the terms in the graph. Our method was evaluated in the VISCERAL Retrieval Benchmark Challenge on 8 queries and a database of 1,813 cases. It ranked first in 6 out of the 8 cases tested.

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Author information

Authors and Affiliations

  1. The Rachel and Selim Benin School of Computer Science and Engineering, The Hebrew University of Jerusalem, Jerusalem, Israel

    Assaf B. Spanier & Leo Joskowicz

Authors
  1. Assaf B. Spanier
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  2. Leo Joskowicz
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Corresponding author

Correspondence to Assaf B. Spanier .

Editor information

Editors and Affiliations

  1. University of Applied Sciences Western Switzerland (HES-SO), Sierre, Switzerland

    Henning Müller

  2. University of Applied Sciences Western Switzerland (HES-SO), Sierre, Switzerland

    Oscar Alfonso Jimenez del Toro

  3. Vienna University of Technology, Vienna, Austria

    Allan Hanbury

  4. Medical University of Vienna, Vienna, Austria

    Georg Langs

  5. ETH Zentrum, Zürich, Switzerland

    Antonio Foncubierta Rodriguez

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© 2015 Springer International Publishing Switzerland

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Spanier, A.B., Joskowicz, L. (2015). Medical Case-Based Retrieval of Patient Records Using the RadLex Hierarchical Lexicon. In: Müller, H., Jimenez del Toro, O., Hanbury, A., Langs, G., Foncubierta Rodriguez, A. (eds) Multimodal Retrieval in the Medical Domain. MRDM 2015. Lecture Notes in Computer Science(), vol 9059. Springer, Cham. https://doi.org/10.1007/978-3-319-24471-6_12

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  • DOI: https://doi.org/10.1007/978-3-319-24471-6_12

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-24470-9

  • Online ISBN: 978-3-319-24471-6

  • eBook Packages: Computer ScienceComputer Science (R0)

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