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.
Original language | English |
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Title of host publication | Multimodal Retrieval in the Medical Domain - 1st International Workshop, MRMD 2015, Revised Selected Papers |
Editors | Georg Langs, Henning Müller H., Oscar Alfonso Jimenez del Toro, Allan Hanbury, Antonio Foncubierta Rodríguez |
Publisher | Springer Verlag |
Pages | 129-138 |
Number of pages | 10 |
ISBN (Print) | 9783319244709 |
DOIs | |
State | Published - 2015 |
Event | 1st International Workshop on Multimodal Retrieval in the Medical Domain, MRMD 2015 - Vienna, Austria Duration: 29 Mar 2015 → 29 Mar 2015 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 9059 |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 1st International Workshop on Multimodal Retrieval in the Medical Domain, MRMD 2015 |
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Country/Territory | Austria |
City | Vienna |
Period | 29/03/15 → 29/03/15 |
Bibliographical note
Publisher Copyright:© Springer International Publishing Switzerland 2015.