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MRI characteristics of contrast-enhancing lesions.
| SWI lesions | Lesions associated with veins on SWI | T1 hypointense lesions | |
|---|---|---|---|
| Ring-shaped enhancing lesions on SWI | 33 | 20 (60%) |
33 (100%) |
| Peripheral enhancing lesions on SWI | 10 | 4 (40%) |
9 (90%) |
| Homogenous enhancing lesions on SWI | 34 | 14 (40%) |
34 (100%) |
| Total | 77 | 38 (50%) | 76 (98%) |
SWI, susceptibility-weighted magnetic resonance imaging.
