Coordinates of the centers of deep brain stimulation lead and dentatorubrothalamic tract in the commissural plane. Mediolateral coordinates expressed as absolute distance (millimeters) from the intercommissural line. (A) Anteroposterior coordinates expressed as absolute distance (millimeters) from the posterior commissure. (B) Anteroposterior coordinates expressed as percentage of anterior to posterior commissure length. AC-PC, anterior to posterior commissure; AP, anteroposterior; DBS, deep brain stimulation; DRTT, dentatorubrothalamic tract; ML, mediolateral; PC, posterior commissure.