MAGSTIM Rapid2 Operating Manual page 64

Magstim Rapid²
Operating Manual
Session x. These lines contain the parameters displayed on the session set up screen on the UI. The
individual parameter value ranges for line 1 are the same for all 30 lines and are as follows:
Start time for line 1 has to be zero. The start time on the other lines should be determined using the
following equation, start time = previous line (start time + duration + wait time).
Power: 0 - 100% at a resolution of 1%.
Frequency: 1 - 100 Hz at a resolution of 1Hz.
Note the settable power to frequency values is determined by the system configuration, see user
manual for Rapid system for more details.
Duration: 0.1 - 10.0 seconds at a resolution of 0.1 seconds.
Number of pulses: 1 – 1000 at a resolution of 1.
Wait time: 1.0 – 60.0 seconds at a resolution of 0.1 seconds.
Note all time periods are specified in multiples of tenths of a second i.e. if a time period of 6.5
seconds is required then a value of 65 is entered between the commas.
MEP 0. This line contains the MEP data column headings.
MEPS x. These lines contain a single reading for each trace stored in the file.
Trace 1 column contains the MEP waveform that was displayed on the UI for channel 1 when the
"save traces" button on the single pulse screen on the UI was selected and the exported file was open
for modification. Each of the 300 data values is within the range 0 – 255.
Trace 2 column contains the MEP waveform that was displayed on the UI for channel 2 when the
"save traces" button on the single pulse screen on the UI was selected and the exported file was open
for modification. Each of the 300 data values is within the range 0 – 255.
To determine the actual voltage recorded for each MEP data value, the value has to be scaled
according to the voltage range that was selected at the time the reading was made. The voltage
range setting for each channel is recorded on the "MEP Configuration" data line of the file.
MEP Configuration. This line contains the details of how the MEP was configured when the MEP
waveforms were saved using "save traces" button on the single pulse screen on the UI. The meaning
for each value are as follows:
Time base index, possible values and meanings are as follow:
0 = 20 ms; 1 = 50 ms; 2 = 100 ms; 3 = 200 ms; 4 = 500 ms.
Channel 1 voltage range index, possible values and meanings are as follows:
0 = 150V; 1 = 300V; 2 = 600V; 3 = 1.5mV; 4 = 3mV; 5 = 6mV;
6 = 15mV; 7 = 30mV.
Channel 2 voltage range index, possible values and meanings are as follows:
0 = 150V; 1 = 300V; 2 = 600V; 3 = 1.5mV; 4 = 3mV; 5 = 6mV;
6 = 15mV; 7 = 30mV.
Special feature, always 0.
© The Magstim Company Limited 61 MOP03-EN-03