Selecting Contacts
You may program the patient either by manually selecting anodes and cathodes in Custom Mode
or automatically trolling the stimulation field along the lead in E-Troll Mode. Both monopolar and
multipolar configurations are permitted in Custom Mode.
A monopolar configuration uses only cathode(s) on the contacts, with the stimulator case acting as
the anode. A multipolar configuration has anode(s) and cathode(s) assigned to the contacts.
Note: Prior to measuring impedances for the first time, all contacts will display an "X" After
an impedance measurement, only contacts with an Impedance over 4500 Ω will
display an "X". Impedances over 4500 Ω are considered to be resultant from open
or unconnected wires. Although an "X" inside a contact indicates higher than normal
impedances, contacts may still be included in a stimulation configuration.
E-Troll Mode
E-Troll Mode is an enhanced way of conducting a monopolar review. E-Trolling allows you to
steer a monopolar cathode along the selected Lead with a single button – eliminating the need to
manually select each contact. E-Troll gradually shifts a percentage of the monopolar cathode to the
next contact using current steering technology to create smooth transitions between contacts.
To E-Troll along a lead:
1
Switch to E-Troll mode by clicking
2
Select a contact to assign it as a cathode and adjust the amplitude.
3
Use the
stimulation focus.
To choose another starting point or to E-Troll on the other lead, click another contact.
Note: The amplitude for the selected Area will drop to 0.1 mA when another contact
is selected.
Note: Contacts assigned in a multipolar configuration in one Area cannot be assigned to a
monopolar configuration in another Area, so E-Trolling is interrupted in such cases.
and
buttons in the E-Troll panel to incrementally steer the
Programming the Patient
in the middle of the screen.
Vercise™ DBS Programming Manual
91053785-07
23 of 323