T1-weighted
Read Your Scan Editorial Team·Last updated
Written from published radiology references and reviewed for plain language. Not written or signed by a physician, and not a diagnosis. How we write these pages →
In plain language
An MRI setting that produces anatomy-first pictures: fat is bright, water and most fluid are dark. It is the sequence radiologists use to see structure clearly, and the one usually repeated after contrast.
Where you’ll see this
The technique section of any MRI report, and beside findings described as "T1 bright" or "T1 dark".
Your report may word it “T1”, “T1W” or “T1-weighted images”. These mean the same thing.
Questions worth asking your doctor
- Did this scan use the right technique to answer my question?
- Would contrast, or a different sequence, show something this one could not?
- Do I need another scan, or is this one enough?
How the scan was taken
Where this word comes up
See this word on your own scan
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