MAGSTIM RAPID2 - Output Safety, Repetition Rate of Stimulus; Environmental Conditions

Magstim Rapid²
Operating Manual
© The Magstim Company Limited 52 MOP03-EN-03
Amplitude Accuracy:
±10% at ½ full scale
Display Resolution:
< 2%
Cursor Resolution:
< 2%
Timebase Accuracy:
<±1% of sample period
Timebase Resolution:
0.33% of sample period
Calibration:
Calibration is not required.
6.4 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
(Hz)
Intensity (% of MEP threshold)
100
110
120
130
140
150
160
170
180
190
200
210
220
1
>1800
>1800
360
>50
>50
>50
>50
27
11
11
8
7
6
5
>10
>10
>10
>10
7.6
5.2
3.6
2.6
2.4
1.6
1.4
1.6
1.2
10
>5
>5
4.2
2.9
1.3
0.8
0.9
0.8
0.5
0.6
0.4
0.3
0.3
20
2.05
1.6
1.0
0.55
0.35
0.25
0.25
0.15
0.2
0.25
0.2
0.1
0.1
25
1.28
0.84
0.4
0.24
0.2
0.24
0.2
0.12
0.08
0.12
0.12
0.08
0.08
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.
6.5 Environmental Conditions*
Operating temperature:
5°C to 40°C
Transport and storage temperature:
-19°C to 60°C
Operating, transport and storage relative humidity:
10% to 80% (non-condensing)
Operating atmospheric pressure:
80kPa to 106kPa
Transport and storage atmospheric pressure:
50kPa to 106kPa