These studies suggets that posterior fossa tumours (speicifically medulloblastoma, ependymoma and astrocytoma) can be in some cases be distinguished using non-invasive methods. This can avoid the need for biopsies during diagnosis. However, some cases indicate a significant overlap in the measured ADC which implies that MR measures alone cannot be used as an alternative tool for diagnosis.
Despite the literature having good success identifying medulloblastoma from other posterior-fossa tumour types using single MR features, single measurements are not sufficient to further classify medulloblastoma into all genetic subgroups. A single study has shown that the WNT subgroup can be isolated from the remaining subgroups using enhancement pattern and tumour location, but the remaining three cannot distinguished \cite{Patay2015}

Radiomics

To further increase the sensitivity and specificity of

Genetics

Genomics

Radiogenomics

Conclusion