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MRI of laser-ablated lesion: Delayed stage (2 weeks to 6 months post procedure)
| Structural anatomy | MRI features | |
|---|---|---|
| T1WI | T1WI + C | |
| Central zone | ↓ Hyper | None |
| Peripheral zone | ↑ Hypo | None |
| Outer rim bordering the peripheral zone | Hypo/Hyper |
↓ Enhancement (size and degree) |
| Perifocal edema (outside the peripheral zone) | Hypo | Hyper |
T1WI T1-weighted image, C contrast, hyper hyperintense, hypo hypointense
