Christina E. Saikus1, Ozgur Kocaturk1, Merdim Sonmez1, Jamie A. Bell1, Anthony Z Faranesh1, J. Andrew Derbyshire1, Robert J. Lederman1, Michael S. Hansen1
1National Heart, Lung,
& Blood Institute, National Institutes of Health,
We have developed and demonstrated a system to monitor active device performance and provide additional safeguards with dynamic scanner feedback control during MRI-guided interventions. A real-time sequence was modified to enable device signal monitoring, dynamic changes in flip angle and RF pulse width, and a low-power default mode. A custom LabVIEW interacted with the scanner to analyze the signal data and additional device temperature monitoring and then provide a system status and adjust scan parameters accordingly. This system can provide an additional safety mechanism for active device use and response when immediately stop scanning may be detrimental in a procedure.