InVA: Integrative Variational Autoencoder for Harmonization of Multi-modal Neuroimaging Data

• URL: http://arxiv.org/abs/2402.02734v1
• Date: Mon, 5 Feb 2024 05:26:17 GMT
• Title: InVA: Integrative Variational Autoencoder for Harmonization of Multi-modal Neuroimaging Data
• Authors: Bowen Lei, Rajarshi Guhaniyogi, Krishnendu Chandra, Aaron Scheffler, Bani Mallick (for the Alzheimer's Disease Neuroimaging Initiative)
• Abstract summary: This article proposes a novel approach, referred to as Integrative Variational Autoencoder (textttInVA) method, which borrows information from multiple images obtained from different sources to draw predictive inference of an image. Numerical results demonstrate substantial advantages of textttInVA over VAEs, which typically do not allow borrowing information between input images.
• Score: 3.792342522967013
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: There is a significant interest in exploring non-linear associations among multiple images derived from diverse imaging modalities. While there is a growing literature on image-on-image regression to delineate predictive inference of an image based on multiple images, existing approaches have limitations in efficiently borrowing information between multiple imaging modalities in the prediction of an image. Building on the literature of Variational Auto Encoders (VAEs), this article proposes a novel approach, referred to as Integrative Variational Autoencoder (\texttt{InVA}) method, which borrows information from multiple images obtained from different sources to draw predictive inference of an image. The proposed approach captures complex non-linear association between the outcome image and input images, while allowing rapid computation. Numerical results demonstrate substantial advantages of \texttt{InVA} over VAEs, which typically do not allow borrowing information between input images. The proposed framework offers highly accurate predictive inferences for costly positron emission topography (PET) from multiple measures of cortical structure in human brain scans readily available from magnetic resonance imaging (MRI).

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