Enhanced identification of BOLD-like components with multi-echo simultaneous multi-slice (MESMS) fMRI and multi-echo ICA

NeuroImage
Valur OlafssonThomas T Liu

Abstract

The recent introduction of simultaneous multi-slice (SMS) acquisitions has enabled the acquisition of blood oxygen level dependent (BOLD) functional magnetic resonance imaging (fMRI) data with significantly higher temporal sampling rates. In a parallel development, the use of multi-echo fMRI acquisitions in conjunction with a multi-echo independent component analysis (ME-ICA) approach has been introduced as a means to automatically distinguish functionally-related BOLD signal components from signal artifacts, with significant gains in sensitivity, statistical power, and specificity. In this work, we examine the gains that can be achieved with a combined approach in which data obtained with a multi-echo simultaneous multi-slice (MESMS) acquisition are analyzed with ME-ICA. We find that ME-ICA identifies significantly more BOLD-like components in the MESMS data as compared to data acquired with a conventional multi-echo single-slice acquisition. We demonstrate that the improved performance of MESMS derives from both an increase in the number of temporal samples and the enhanced ability to filter out high-frequency artifacts.

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Citations

Aug 27, 2015·Magnetic Resonance in Medicine : Official Journal of the Society of Magnetic Resonance in Medicine·Markus BarthBenedikt A Poser
Jun 25, 2015·Brain Connectivity·J Jean ChenDanny J J Wang
Apr 6, 2016·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Catie ChangJeff H Duyn
May 4, 2016·Trends in Cognitive Sciences·Julien Dubois, Ralph Adolphs
Sep 11, 2016·NeuroImage·Thomas T Liu
Jun 4, 2019·Frontiers in Psychiatry·Janina NeufeldBhismadev Chakrabarti
Nov 20, 2020·Journal of Magnetic Resonance Imaging : JMRI·Alexander D CohenYang Wang
Feb 9, 2019·NeuroImage·Jingyuan E ChenGary H Glover
Feb 7, 2017·NeuroImage·Cameron TrappStefan Posse
Mar 16, 2021·Frontiers in Physiology·Alexander D CohenYang Wang
Apr 13, 2021·Frontiers in Physiology·J Jean Chen, Claudine J Gauthier
Jun 18, 2021·Trends in Cognitive Sciences·Maxwell L ElliottAhmad R Hariri

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