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Abstract #2762

MRI-Induced Vibrations in Active Implantable Medical Devices: Effect on the Device

Ramez E. N. Shehada1, Rohan More1, Reza Imani1, Wudi Zhou1, Micah Meulmester1, Benjamin Coppola1, Jon Dietrich1, Richard Williamson1, Ali Dianaty1

1CRMD, St. Jude Medical, Sylmar, CA, United States

Gradient-induced vibrations can fatigue the components of MRI-conditional active-implantable medical devices (AIMD) leading to their failure. A non-contact vibrometer was used in a special fixture to measure the vibrations of various AIMD components in clinical 1.5T MRI scanners. The frequency range of the vibrations ranged from 0-2kHz with a maximum displacement of 25um. The vibration values were then programmed into a computerized shaker-table that was used to aggressively vibrate the AIMD for longer periods of time after which the AIMD was checked for damage. This study presents a new method for characterizing the vibrations and assessing their effects on AIMD.