1 |
Normal. No increase in signal intensity (SI) |
No lesion |
2 |
Focal, slightly hyper intense, but similar to overall heterogeneity |
Barely visible, similar to overall heterogeneity |
3 |
Focal, dominant, slightly hyper intense compared to overall heterogeneity |
Focal, slightly decreased ADC compared to overall heterogeneity |
4 |
Focal, dominant, clearly hyper intense compared to overall heterogeneity |
Dominant, Focal, Moderately decreased ADC compared to overall heterogeneity |
5 |
Focal, dominant, markedly hyper intense with no competing heterogeneity |
Dominant Focal, markedly low ADC, without significant heterogeneity elsewhere |