Are you confusing GI with LGI?

On Dec 22, 2017, at 4:33 PM, Martin Juneja <mj70481@gmail.com> wrote:

Hi,

I came across several papers e.g. http://www.sciencedirect.com/science/article/pii/S2213158215000856 where gyrification index (GI) is indicated in 'mm'.

By definition GI is the ratio of two quantities: inner contour/outer contour (http://en.citizendium.org/wiki/Gyrification), therefore, shouldn't GI be 'unitless' then?

I am not sure which way is this correct?

Thanks.