Figure 1
From: An MRI-compatible defibrillator: initial testing in volunteers and swine
(A) Block diagram of MRI-compatible defibrillator. 7-pole Low-pass filter has diffential-mode and common-mode units to maximally suppress unwanted RF current induction into MRI. (B) The layout of the system inside the MRI room. (C) 1.5T MRI SSFP images with defibrillator generator OFF, generator ON powered from the battery, and generator ON powered from the line (worst SNR condition). Red arrows denote location of defibrillation pads.