Cella media index

Last revised by Anna Scheurecker on 5 Jul 2023

The cella media index (also known as Schiersmann's index) is one of the methods used to assess ventricle size with respect to brain tissue and cerebral atrophy. It is the ratio of biparietal diameter of skull to maximum external diameter of bodies of the lateral ventricles (cella media) 1.

A normally cella media index is considered as >4 1

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