ArticleFrontiers in neuroinformatics2020
Beware (Surprisingly Common) Left-Right Flips in Your MRI Data: An Efficient and Robust Method to Check MRI Dataset Consistency Using AFNI.
Article in Frontiers in neuroinformatics, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.
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Who cites it
22 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Highlight results, don't hide them: Enhance interpretation, reduce biases and improve reproducibility.NeuroImage · 2023Pooled it
- A new fMRI quality metric using multi-echo information: Theory, validation and implications.bioRxiv : the preprint server for biology · 2026Article
- What needs to be standardized for reliable, reproducible, and robust tractography?GigaScience · 2026Review
- A 3D-printed phantom to validate subject orientation in 3D imaging and recordings.Frontiers in neuroinformatics · 2026Article
- A Neural Network Approach to Identify Left-Right Orientation of Anatomical Brain MRI.Brain and behavior · 2025Article
- Processing, evaluating, and understanding FMRI data with afni_proc.py.Imaging neuroscience (Cambridge, Mass.) · 2024Article
- The magic, memory, and curiosity fMRI dataset of people viewing magic tricks.Scientific data · 2024Article
- Article
- A Set of FMRI Quality Control Tools in AFNI: Systematic, in-depth, and interactive QC with afni_proc.py and more.Imaging neuroscience (Cambridge, Mass.) · 2024Article
- Solving the Pervasive Problem of Protocol Non-Compliance in MRI using an Open-Source tool mrQA.Neuroinformatics · 2024Article
- A Set of FMRI Quality Control Tools in AFNI: Systematic, in-depth and interactive QC with afni_proc.py and more.bioRxiv : the preprint server for biology · 2024Article
- Novel inductively coupled ear-bars (ICEs) to enhance restored fMRI signal from susceptibility compensation in rats.Cerebral cortex (New York, N.Y. : 1991) · 2024Article
- Lessons learned from an fMRI-guided rTMS study on performance in a numerical Stroop task.PloS one · 2024Article
- Design and methodology for a proof of mechanism study of individualized neuronavigated continuous Theta burst stimulation for auditory processing in adolescents with autism spectrum disorder.Frontiers in psychiatry · 2024Article
- BOLD Response is more than just magnitude: Improving detection sensitivity through capturing hemodynamic profiles.NeuroImage · 2023Article
- The art and science of using quality control to understand and improve fMRI data.Frontiers in neuroscience · 2023Article
- Demonstrating quality control procedures for fMRI in DPABI.Frontiers in neuroscience · 2023Article
- Editorial: Demonstrating quality control (QC) procedures in fMRI.Frontiers in neuroscience · 2023Article
- Quality control practices in FMRI analysis: Philosophy, methods and examples using AFNI.Frontiers in neuroscience · 2022Article
- Quality control in functional MRI studies with MRIQC and fMRIPrep.Frontiers in neuroimaging · 2022Article
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Authors and funding
5 authors.
Funding
Abstract
Knowing the difference between left and right is generally assumed throughout the brain MRI research community. However, we note widespread occurrences of left-right orientation errors in MRI open database repositories where volumes have contained systematic left-right flips between subject EPIs and anatomicals, due to having incorrect or missing file header information. Here we present a simple method in AFNI for determining the consistency of left and right within a pair of acquired volumes for a particular subject; the presence of EPI-anatomical inconsistency, for example, is a sign that dataset header information likely requires correction. The method contains both a quantitative evaluation as well as a visualizable verification. We test the functionality using publicly available datasets. Left-right flipping is not immediately obvious in most cases, so we also present visualization methods for looking at this problem (and other potential problems), using examples from both FMRI and DTI datasets.
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Registered trials
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