Decision support system in radiation therapy treatment planning
Date
2024-08
Authors
Journal Title
Journal ISSN
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Publisher
University of Southern California
Abstract
The radiation therapy treatment planning involves complex decision-making processes that rely
heavily on the expertise of clinicians. This research introduces an innovative decision support
system (DSS) designed to enhance personalized treatment recommendations in radiation therapy
by leveraging advanced informatics methodologies. This research introduces an innovative
decision support system for personalized radiation therapy treatment recommendations using
advanced informatics methodologies. To compare patient profiles based on anatomical
characteristics, it employs the integration of Gower's similarity measure and Earth Mover's
Distance (EMD) analysis, enabling a nuanced assessment of dissimilarities.
The DSS computes EMD values for spatial target signatures (STS) and overlap volume histograms
(OVH) across multiple regions of interest (ROIs). The effectiveness of the EMD metric is in
quantifying dissimilarities between radiation therapy plans is validated through a testing
methodology. This involves randomly shifting the contours of organs at risk (OARs) and target
volumes while maintaining their original shape and size, allowing us to evaluate the EMD metric's
sensitivity to anatomical location variability, and its accuracy in identifying similar treatment
plans.
The implementation of this DSS involves the acquisition of diverse patient datasets from multiple
institutions, ensuring the generalizability of the research outcomes. The data is efficiently
organized and managed using MongoDB, a NoSQL database solution that allows for the storage
of complex and varied data types.The successful integration of these advanced informatics
methodologies paves the way for more personalized, precise, and effective radiation therapy
treatment planning.
Description
Keywords
algorithm development, anatomical similarity, biomedical engineering, decision support system (DSS), DICOM, Earth Mover's Distance (EMD), Gower's similarity measure, machine learning (ML), medical imaging medical imaging informatics, organ at risk (OAR), overlap volume histogram (OVH), personalized treatment radiation therapy (RT), spatial target signature (STS), testing and validation, treatment planning
Citation
Alshehri, W. (2024a). Decision support system in radiation therapy treatment planning (thesis). USC, Los Angeles.