Table 1.
Classification of the types and subtypes of demyelinating lesions
| Lesion type | CE T1WI | DWI | Lesion subtype | DWI | ADC | eADC |
|---|---|---|---|---|---|---|
| I |
C+ |
Hyper |
A |
Hyper |
Hypo |
Hyper |
| II |
C+ |
Iso or hypo |
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| III |
C– |
Hyper |
B |
Iso, hypo or hyper (T2 T-S) |
Iso or hyper |
Iso or hypo |
| IV | C– | Iso or hypo |
CE T1WI, contrast-enhanced T1-weighted imaging; DWI, diffusion-weighted imaging; ADC, apparent diffusion coefficient; eADC, exponential apparent diffusion coefficient; C +, enhancing; C –, nonenhancing; hyper, hyperintense; iso, isointense; hypo, hypointense; T2 T-S, T2-shine through effect.