About TMS Protocols

Transcranial Magnetic Stimulation (TMS) is a non-invasive neuromodulation technique. The four protocols below are built into the Brain Ultimate TMS system. They should be administered by trained healthcare professionals following proper patient assessment and motor threshold determination.

Built-In Treatment Protocols

Standard MDD Protocol

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This protocol is performed at 120% of motor threshold. The train(s) consist of 40 pulses: 10 pulses a second for a total of 4 seconds, followed by a break of 11.0 seconds. This is repeated 75 times. The total duration is 18 minutes 26 seconds, and the total number of pulses is 3000.

120%
Motor Threshold
10 Hz
Frequency
3000
Total Pulses
~19 min
Duration
ParameterValue
Stimulation typeBiphasic
Stimulus amplitude (% of MT)120
Pulse frequency in train (Hz)10
Pulses in train40
Number of trains75
Intertrain interval(s)11.0
Total time18:26
Total pulses3000

Clinical Notes

  • Shorter duration may improve patient comfort and compliance.
  • Administered over the left dorsolateral prefrontal cortex (DLPFC).

Extended MDD Protocol

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This protocol uses a longer inter-train interval for enhanced patient tolerance. It delivers the same total pulses (3000) but over a longer duration, which may be preferable for some patients.

120%
Motor Threshold
10 Hz
Frequency
3000
Total Pulses
~37 min
Duration
ParameterValue
Magnetic field intensity120% of the MT
Frequency10 Hz
Train duration4 sec
Inter-train interval26 sec
Number of trains75
Magnetic pulses per session3000
Total time36:56
Area of brainLeft Dorsolateral Prefrontal Cortex

Clinical Notes

  • Consider for patients who report discomfort with the Standard MDD Protocol.

iTBS Protocol

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Intermittent Theta Burst Stimulation (iTBS) delivers bursts of high-frequency stimulation in a pattern that mimics natural brain rhythms. This protocol reduces session time to just over three minutes.

120%
Motor Threshold
50 Hz
Burst Frequency
600
Total Pulses
3:12
Duration
ParameterValue
LocationLeft Dorsolateral Prefrontal Cortex
Treatment level (% of MT)120%
Pulse frequency within burst50 Hz
Pulses per burst3
Burst cycle time200 ms
Number of bursts per train10
Intra-sequence interval (ISI)2.00 s
Inter-train interval (ITI)8 s
Number of trains20
Total pulses600
Total time03:12

Clinical Notes

  • iTBS delivers 50Hz triplet bursts (3 pulses per burst) repeated at 5Hz.
  • The short session time (3:12) improves clinical workflow and patient throughput.
  • May improve treatment adherence due to shorter sessions.

OCD Protocol

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This protocol uses a different set of stimulation parameters and targets the medial prefrontal cortex/anterior cingulate cortex rather than the left DLPFC used by the MDD protocols.

100%
Motor Threshold
20 Hz
Frequency
2000
Total Pulses
18 min
Duration
ParameterValue
ProtocolOCD 1
Magnetic field intensity (% of MT)100%
Frequency20 Hz
Burst pulses1
Cycle time50 ms
Pulses in train40
Intra-sequence interval (ISI)2.00 s
Inter-train interval (ITI)20 s
Number of trains50
Total pulses2000
Total time18:00

Clinical Notes

  • Lower motor threshold (100% vs 120% used in the MDD protocols).
  • Higher frequency (20 Hz) compared to the MDD protocols (10 Hz).

All Protocols — Quick Comparison

ParameterStandard MDDExtended MDDiTBSOCD
Motor Threshold120%120%120%100%
Frequency10 Hz10 Hz50 Hz (burst)20 Hz
Total Pulses3,0003,0006002,000
Trains75752050
Pulses per Train40403040
Inter-train Interval11 s26 s8 s20 s
Total Duration18:2636:563:1218:00
Target RegionL-DLPFCL-DLPFCL-DLPFCmPFC/ACC