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Table 2 MRI of laser-ablated lesion: Delayed stage (2 weeks to 6 months post procedure)

From: Neurosurgical applications of MRI guided laser interstitial thermal therapy (LITT)

Structural anatomy MRI features
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
  1. T1WI T1-weighted image, C contrast, hyper hyperintense, hypo hypointense