Bruker ICON - 5.3 In- and Output Trigger; 5.3.1 Input trigger; 5.3.2 Output trigger

82 Icon System Manual T02985_02_03
MRI System Operation
5.3 In- and Output Trigger
The ICON AVANCE III MRI electronics provides one programmable input trigger and one
programmable TTL output signal. The trigger connector has a quick latch QLA type
connector, including a QLA/BNC adapter.
5.3.1 Input trigger
Input trigger signals are used for synchronizing the scanner with external signals or events,
e.g. ECG or respiration threshold detection. If a trigger-in module is activated inside
ParaVision, the scanner interrupts the image acquisition until the next trigger event occurs.
Such trigger events are generated by an external triggering device, i.e. the SA Instruments
animal supervision device. The ECG external triggering is activated from within the
method in the PVM TRIGGER_IN parameter class.
For usage of the input trigger please refer to the ParaVision Application Manual.
5.3.2 Output trigger
The output trigger signal is used to control or synchronize external devices (i.e. fMRI
stimulation devices) from within the pulse program of the scanner. The output trigger is
activated from the PVM TRIGGER_OUT parameter class. The TRIGGER_OUT class is
included in all EPI based method derivates.
For usage of the output trigger please refer to the ParaVision Application Manual.