Brain abnormalities in myalgic encephalomyelitis/chronic fatigue syndrome: Evaluation by diffusional kurtosis imaging and neurite orientation dispersion and density imaging. — CFSMEATLAS
Brain abnormalities in myalgic encephalomyelitis/chronic fatigue syndrome: Evaluation by diffusional kurtosis imaging and neurite orientation dispersion and density imaging.
Kimura, Yukio, Sato, Noriko, Ota, Miho et al. · Journal of magnetic resonance imaging : JMRI · 2019 · DOI
Quick Summary
Researchers used advanced brain imaging to examine 20 ME/CFS patients and 23 healthy people. The imaging revealed that people with ME/CFS had subtle structural differences in specific brain regions involved in communication, thinking, and sensation. These differences were not visible on standard brain scans but were detected using newer, more detailed imaging techniques.
Why It Matters
This study provides objective neuroimaging evidence of structural brain changes in ME/CFS, which could help validate the condition as a biological disorder and support development of diagnostic biomarkers. For patients, identifying specific brain abnormalities strengthens scientific recognition of ME/CFS as a real neurological condition rather than psychiatric or psychosomatic.
Observed Findings
Reduced fractional anisotropy in the corpus callosum genu and right internal capsule
Decreased mean kurtosis in right frontal, anterior cingulate, superior longitudinal fasciculus, and left parietal regions
Reduced neurite density index in right posterior cingulate, superior longitudinal fasciculus, and left frontal areas
Altered orientation dispersion in bilateral occipital areas, right superior temporal gyrus, and cingulate regions
No significant difference in mean diffusivity between ME/CFS and control groups
Inferred Conclusions
White matter microstructural abnormalities are detectable in ME/CFS patients using advanced diffusion imaging
Right superior longitudinal fasciculus abnormalities may serve as a neuroimaging biomarker for ME/CFS diagnosis
DKI and NODDI metrics reveal pathological changes not detected by conventional DTI measures
Remaining Questions
Do these brain abnormalities correlate with specific ME/CFS symptoms or disease severity?
Are these structural changes present at disease onset or do they develop over time?
What This Study Does Not Prove
This study does not establish whether these brain abnormalities cause ME/CFS symptoms or result from them, nor does it determine if these changes are progressive or reversible. The findings are correlational, not causal, and the small sample size means results require replication before clinical application. It also does not explain the biological mechanisms producing these structural changes.
Tags
Symptom:Fatigue
Biomarker:Neuroimaging
Method Flag:Weak Case DefinitionSmall SampleExploratory Only