| Signal Intensity | ||||||
|---|---|---|---|---|---|---|
| Image | TR | TE | CSF | Fat | Brain | Edema |
| T1W | Short | Short | Low | High | Low | Low |
| T2W | Long | Long | High | Low | High | High |
| FLAIR (T2) | Long | Long | Low | Medium | High | High |
Abbreviations:
CSF, cerebrospinal fluid; TE, interval between Rf pulse and signal
reception; TR, interval between radiofrequency (Rf) pulses; T1W and T2W,
T1- and T2-weighted.
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