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Dynamic time warping fusion for the retrieval of similar patient cases represented by multimodal time-series medical data

机译:动态时间规整融合,用于检索以多模式时间序列医学数据表示的相似患者案例

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Comparing a patient case with other cases having a similar progress in time can prove valuable for medical decision making. However, as the population under study increases, the complexity of such comparisons can exceed the capabilities of human medical experts, especially when multiple parameters are involved. In this paper we propose a novel computational approach to aid the comparison of multimodal medical data obtained from different time-series patient examinations. The similarity between the patient cases is assessed by a fusion scheme involving the estimation of multiple dynamic time warping distances between temporal sequences of observed medical parameter values. The results obtained from its application on a reference dataset of hepatic infections demonstrated high precision even for low recall rates. Thus, the effectiveness of the proposed approach which is generic renders it applicable on various medical domains.
机译:将患者病例与其他具有相似进展时间的病例进行比较可证明对医疗决策具有重要意义。但是,随着研究人群的增加,这种比较的复杂性可能会超出人类医学专家的能力,尤其是在涉及多个参数时。在本文中,我们提出了一种新颖的计算方法,以帮助比较从不同时间序列的患者检查中获得的多模式医学数据。通过融合方案评估患者病例之间的相似性,该融合方案包括对观察到的医学参数值的时间序列之间的多个动态时间扭曲距离的估计。从其在肝感染参考数据集上的应用获得的结果表明,即使召回率较低,也具有很高的精度。因此,所提出的通用方法的有效性使其可应用于各种医学领域。

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