Automatic preprocessing pipeline for white matter functional analyses of large-scale databases

Yurui Gao; Dylan R. Lawless; Muwei Li; Yu Zhao; Kurt G. Schilling; Lyuan Xu; Andrea T. Shafer; Lori L. Beason-Held; Susan M. Resnick; Baxter P. Rogers; Zhaohua Ding; Adam W. Anderson; Bennett A. Landman; John C. Gore

doi:10.1117/12.2653132

3 April 2023 Automatic preprocessing pipeline for white matter functional analyses of large-scale databases

Yurui Gao, Dylan R. Lawless, Muwei Li, Yu Zhao, Kurt G. Schilling, Lyuan Xu, Andrea T. Shafer, Lori L. Beason-Held, Susan M. Resnick, Baxter P. Rogers, Zhaohua Ding, Adam W. Anderson, Bennett A. Landman, John C. Gore

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Proceedings Volume 12464, Medical Imaging 2023: Image Processing; 124640U (2023) https://doi.org/10.1117/12.2653132
Event: SPIE Medical Imaging, 2023, San Diego, California, United States

Abstract

Recently, increasing evidence suggests that fMRI signals in white matter (WM), conventionally ignored as nuisance, are robustly detectable using appropriate processing methods and are related to neural activity, while changes in WM with aging and degeneration are also well documented. These findings suggest variations in patterns of BOLD signals in WM should be investigated. However, existing fMRI analysis tools, which were designed for processing gray matter signals, are not well suited for large-scale processing of WM signals in fMRI data. We developed an automatic pipeline for high-performance preprocessing of fMRI images with emphasis on quantifying changes in BOLD signals in WM in an aging population. At the image processing level, the pipeline integrated existing software modules with fine parameter tunings and modifications to better extract weaker WM signals. The preprocessing results primarily included whole-brain time courses, functional connectivity, maps and tissue masks in a common space. At the job execution level, this pipeline exploited a local XNAT to store datasets and results, while using DAX tool to automatic distribute batch jobs that run on high-performance computing clusters. Through the pipeline, 5,034 fMRI/T1 scans were preprocessed. The intraclass correlation coefficient (ICC) of test-retest experiment based on the preprocessed data is 0.52 - 0.86 (N=1000), indicating a high reliability of our pipeline, comparable to previously reported ICC in gray matter experiments. This preprocessing pipeline highly facilitates our future analyses on WM functional alterations in aging and may be of benefit to a larger community interested in WM fMRI studies.

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Yurui Gao, Dylan R. Lawless, Muwei Li, Yu Zhao, Kurt G. Schilling, Lyuan Xu, Andrea T. Shafer, Lori L. Beason-Held, Susan M. Resnick, Baxter P. Rogers, Zhaohua Ding, Adam W. Anderson, Bennett A. Landman, and John C. Gore "Automatic preprocessing pipeline for white matter functional analyses of large-scale databases", Proc. SPIE 12464, Medical Imaging 2023: Image Processing, 124640U (3 April 2023); https://doi.org/10.1117/12.2653132

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