Observed arrival · 2026-10-11

MRI, made visible

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Editorial interest 84/100 Selection signal · not a rating of the site

An interactive learning lab uses visual models to explain MRI relaxation, scan timing, BOLD fMRI, and spatial encoding.

Landing page captured for the 2026-10-11 issue.

For: MRI and fMRI learners
Worth noticing: It distinguishes spin-echo T2 refocusing from gradient-echo T2* sensitivity, and flags its tissue values and presets as illustrative.

Field notes

The relaxation model displays exponential relationships and marks the selected time on its graphs when it falls within their ranges. Presets compare T1-, T2-, and proton-density emphasis, while a gradient-echo option uses T2* to isolate its effect. The page cautions that its tissue constants are illustrative, real values vary with tissue and field strength, and its simplified presets are not scanner protocols.

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