Fig. 1.

Measurements obtained on midsagittal MR images of the sella turcica. A: The sellar face length was defined by a line from the tuberculum sellae to the sellar-clival angle (red line). The prominence of the sella was defined as the maximal length from the sellar face line to the most prominent point on the sellar floor (blue line). B: Method of obtaining the sellar angle. C: Depicts angle measurements of the tuberculum sellae angle and sellar-clival angle.