Table 6 Cerebral atrophy rating scale.

From: Detrimental effects of hypercortisolism on brain structure and related risk factors

Internal cerebral atrophy

BCR

Minimum distance between frontal horns divided by the distance between the inner tables of the skull along the same line

BFR

Distance between the tips of the frontal horns divided by the distance between the inner tables of the skull along the same line

External cerebral atrophy

SFR

Average of the maximum width of the two sylvian fissures on the section showing them at their widest, divided by the trans-pineal coronal inner table diameter

FFR

Maximal width of the interhemispheric fissure divided by the trans-pineal coronal inner table diameter

Temporal atrophy

Uncotemporal index

Ratio of distance between the unci of temporal lobes to the distance between outer margins of temporal lobes

Hippocampal formation height

Measured on a plane parallel to the brainstem axis plane where the hippocampal formation was highest

Width of the temporal horn

Measured on the same plane used for hippocampal height measurement