Multidimensional Volumes Classification

I watched and read with interest lesson 11 where Jeremy spoke about CT scan classification and the corresponding Kaggle challenge.

I would like to approach a classification task with multi-modality MRI volumes as input (e.g. T1, FLAIR, DWI, etc). Does anyone have an idea how to feed many volumes instead of one volume in fastai?

In th CT scan challenge this was “relatively” simple since there was only one volume.

Thanks