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Fig. 2 | SpringerPlus

Fig. 2

From: An in vivo morphometry study on the standard transsylvian trajectory for mesial temporal lobe epilepsy surgery

Fig. 2

The direction of the sphenoid ridge on the axial plane. The line on the sphenoid ridge was drawn (dashed lines) between the outer point near the pterion (white marks) and the inner point close to the clinoid process (black marks). The angle between the sphenoid ridge line and x-axis of the coordinates (a horizontal line) was calculated as described in the "Methods” section.

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