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. 2023 May 4:17:1076824.
doi: 10.3389/fnins.2023.1076824. eCollection 2023.

Quality control in resting-state fMRI: the benefits of visual inspection

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Quality control in resting-state fMRI: the benefits of visual inspection

Rebecca J Lepping et al. Front Neurosci. .

Abstract

Background: A variety of quality control (QC) approaches are employed in resting-state functional magnetic resonance imaging (rs-fMRI) to determine data quality and ultimately inclusion or exclusion of a fMRI data set in group analysis. Reliability of rs-fMRI data can be improved by censoring or "scrubbing" volumes affected by motion. While censoring preserves the integrity of participant-level data, including excessively censored data sets in group analyses may add noise. Quantitative motion-related metrics are frequently reported in the literature; however, qualitative visual inspection can sometimes catch errors or other issues that may be missed by quantitative metrics alone. In this paper, we describe our methods for performing QC of rs-fMRI data using software-generated quantitative and qualitative output and trained visual inspection.

Results: The data provided for this QC paper had relatively low motion-censoring, thus quantitative QC resulted in no exclusions. Qualitative checks of the data resulted in limited exclusions due to potential incidental findings and failed pre-processing scripts.

Conclusion: Visual inspection in addition to the review of quantitative QC metrics is an important component to ensure high quality and accuracy in rs-fMRI data analysis.

Keywords: artifacts; functional magnetic resonance imaging (fMRI); quality control; reproducibility of results; resting state—fMRI.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Data checking steps include qualitative and quantitative evaluation of the imaging data to determine inclusion in group level analysis.
Figure 2
Figure 2
Resting state fMRI data processing and QC workflow.

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