(a) The midsagittal MR image shows the AC (solid arrow) and PC
(dotted arrow). (b) Among several kinds of the AC-PC lines, the
Talairach AC-PC line and the Schaltenbrand AC-PC line are commonly
used especially for stereotaxic surgery. The Talairach AC-PC line
passes through the superior edge of the AC and the inferior edge of
the PC (solid line). The Schaltenbrand AC-PC line passes through the
center of the AC and the center of the PC (dotted line). (c) The
illustration of the midsagittal image shows the AC (solid arrow) and
PC (dotted arrow). For the Talairach AC-PC line, the landmarks are
the superior edge of the AC and the inferior edge of the PC. For the
Schaltenbrand AC-PC line, the landmarks are the center of the AC and
the center of the PC.
AC: anterior commissure; MR: magnetic resonance; PC: posterior
commissure.