MAGSTIM RAPID2 Operating Manual page 56

2
Magstim Rapid
10.6 OUTPUT SAFETY, REPETITION RATE OF STIMULUS
The following Table is taken from Eric M. Wassermann's paper – Risk and Safety of Repetitive
Transcranial Magnetic Stimulation: Report and recommendations from the International workshop on
the safety of Repetitive Transcranial Magnetic Stimulation June 5-7, 1996. It gives the maximum safe
duration (in seconds) of single trains of rTMS based on the NINDS experience.
Frequency
100 110
(Hz)
1 >1800 >180
0
5 >10 >10
10 >5 >5
20 2.05 1.6
25 1.28 0.84
Numbers preceded by the symbol > are the longest durations tested. No after discharge or spread of
excitation has been encountered with single trains of rTMS at these combinations of stimulus frequency
and intensity.
Output Range:
Magnetic Field:
Pulse Characteristics:
The MAGSTIM Company LTD
Intensity (% of MEP threshold)
120 130 140
360 >50 >50
>10 >10 7.6
4.2 2.9 1.3
1.0 0.55 0.35 0.25
0.4 0.24 0.2 0.24
0% - 100% of Maximum Voltage ±2%
The magnetic field produced by the Magstim Rapid
of coil connected. In the case of the Double 70mm Coil supplied with the
system, the field output is 1.2T at the surface of the coil.
Biphasic Single Cosine Cycle - 400µs period
53
150 160 170 180
>50 >50 27 11
5.2 3.6 2.6 2.4
0.8 0.9 0.8 0.5
0.25 0.15 0.2
0.2 0.12 0.08
MOP03-EN-01
190 200 210
11 8 7
1.6 1.4 1.6
0.6 0.4 0.3
0.25 0.2 0.1
0.12 0.12 0.08
2
depends on the type
June 2011
220
6
1.2
0.3
0.1
0.08