Table 1.

DBS targets for ET.

	Location or Component	Coordinates (Relative to the Midcommissural Point (MCP))
Vim	Thalamus	12~14 mm lateral 4~6 mm posterior 0~1 mm inferior
PSA	Caudal zona incerta, prelemniscal radiation, prerubral field	10~12 mm lateral 6~8 mm posterior 2~4 mm inferior
Globus pallidus interna (GPi)	Medial to the globus pallidus external (GPe)	19~21 mm lateral 2~4 mm anterior 4~6 mm inferior
Subthalamic nucleus (STN)	Superior to the substantia nigra (SN)	10~12 mm lateral 2~4 mm posterior 3~4 mm inferior