A comprehensive investigation of physiologic noise modeling in resting state fMRI; time shifted cardiac noise in EPI and its removal without external physiologic signal measures.

Wanyong Shin,Katherine A Koenig,Mark J Lowe

NeuroImage（2022）

引用 6|浏览10

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摘要

•We find that the cardiac hemodynamic phase function is time shifted locally.•We find that the respiratory hemodynamic phase function has single form across the brain.•We propose automatic physiologic signal detection without the external physiologic signal measures and its correction method in resting state-fMRI data.•We compare the efficacy of the proposed method to RETROICOR.

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关键词

Rresting state fMRI,cardiac and respiratory noise,physiologic signal estimation and correction,non-neuronal signal,cardiac temporal shift

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