[Diffusion-weighted MRI in patients with Creutzfeldt-Jakob disease]

Area of Science:

• Neurology
• Radiology
• Neuroimaging

Background:

• Current Creutzfeldt-Jakob disease (CJD) diagnosis relies on postmortem neuropathology or supportive ante-mortem tests like EEG and CSF analysis.
• Conventional MRI sequences (T2, FLAIR, PD) often reveal basal ganglia hyperintensities in suspected CJD cases.
• Diffusion-weighted MRI (DWI) is an emerging neuroimaging technique with potential for improved diagnostic accuracy.

Observation:

• The study evaluated the sensitivity of DWI in five patients with suspected CJD.
• All five patients exhibited hyperintense signal changes in the basal ganglia on DWI sequences.
• These DWI findings were more pronounced compared to conventional T2, FLAIR, and PD-weighted MRI sequences.

Findings:

• Diffusion-weighted MRI (DWI) demonstrated superior sensitivity in detecting basal ganglia abnormalities in suspected CJD cases.
• DWI sequences were more effective than T2, FLAIR, and PD-weighted images in visualizing these pathological changes.
• The shorter scanning time of DWI minimizes artifacts, particularly in patients experiencing myoclonus.

Implications:

• DWI represents a highly sensitive neuroimaging tool for the early diagnosis of Creutzfeldt-Jakob disease (CJD).
• This technique may enhance diagnostic confidence and facilitate timely clinical management of CJD patients.
• Further research validating DWI's efficacy in larger cohorts is warranted to establish its role in routine CJD diagnostics.