3d ventricle?

These are coronal views from MRI head-shots last fall. I think the third ventricle is the little opening indicated by the red circle. Hard to believe you could tell much about the size of the little guy from a sonograph, but I'm not a professional. I've also got some MRI films from way back (1993?); I wonder how they'd compare.

Neuropsychological impairment and the 3rd ventricle

In today's batch of MS-related abstracts from PubMed (which, by the way, you can get as an RSS feed, which I do) reports that the width of the brain's third ventricle, as measured by transcranial brain sonography, has a "good correlation" to cognitive impairment in MS patients. Here's a link to the abstract.

I've never had a transcranial brain sonograph, but I've got some relatively recent (6-9 months old) MRI images. I wonder what my third ventricle looks like- maybe I'll try to post a picture that shows my third ventricle. Unfortunately, the abstract doesn't really say whether it's larger-than-normal or smaller-than-normal ventricular width that correlates to cognitive impairment, so I'll probably just end up torturing myself unnecessarily, but hey, that's what science is all about, right?