This system provides the cardiac trigger via an electrocardiogram amplifier and includes an MP150 data acquisition & analysis system, dual channel cardiac respiratory gating system, and appropriate amplifiers, transducers, cables, electrodes, and leads.
The MRI Smart Electrocardiogram Amplifier (ECG100C-MRI) records electrical activity generated by the heart and will reliably record ECG from humans or animals. The amplifier output can be switched between normal ECG output and R-wave detection. The R-wave mode outputs a smoothed pulse with the occurrence of each R-wave. The exact timing of the R-wave is detected even under conditions of extreme signal artifact.
The Respiration Transducer (TSD110-MRI) requires no electrical connections inside the chamber and works on a number of body locations. The multipurpose assembly can be used to noninvasively measure pulse, respiration—from a small mouse to a human, small pressing forces (like pinching fingers together) for Parkinson’s evaluations, human facial expressions (smiling, frowning, etc.), spacing and pressure between teeth coming together, or startle blink response.
The dual channel gating system (DTU200 in -E or DTU300 in -EL) works for small animal and human MRI applications. It sends cardiac trigger pulses to the MRI when a respiration signal is in the quiet phase. Additional filters and gain controls further refine the quality of the signal and ensure reliable triggering.
AcqKnowledge includes automation tools for artifact frequency removal, artifact projection removal, median filter artifact removal, and signal blanking.
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