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Paper details
Number 1 - March 2019
Volume 29 - 2019
Fusion of clinical data: A case study to predict the type of treatment of bone fractures
Anam Haq, Szymon Wilk, Alberto Abelló
Abstract
A prominent characteristic of clinical data is their heterogeneity—such data include structured examination records and
laboratory results, unstructured clinical notes, raw and tagged images, and genomic data. This heterogeneity poses a
formidable challenge while constructing diagnostic and therapeutic decision models that are currently based on single
modalities and are not able to use data in different formats and structures. This limitation may be addressed using data fusion
methods. In this paper, we describe a case study where we aimed at developing data fusion models that resulted in various
therapeutic decision models for predicting the type of treatment (surgical vs. non-surgical) for patients with bone fractures.
We considered six different approaches to integrate clinical data: one fusion model based on combination of data (COD) and
five models based on combination of interpretation (COI). Experimental results showed that the decision model constructed
following COI fusion models is more accurate than decision models employing COD. Moreover, statistical analysis using
the one-way ANOVA test revealed that there were two groups of constructed decision models, each containing the set of
three different models. The results highlighted that the behavior of models within a group can be similar, although it may
vary between different groups.
Keywords
clinical data, data fusion, combination of data, combination of interpretation, prediction models, decision support