Figure 2
From: Feasibility of Leadless Cardiac Pacing Using Injectable Magnetic Microparticles
Localization of IMPs in the RV cavity by applying an external magnet.
Rats were administered with 15 mg of IMPs via their tail vein, with (a) or without (b) an electromagnet positioned against their chest (magnetic induction of ~0.2 T and gradient of ~42 T/m at the heart location). After 1 min, while magnet was still in action, the rats were sacrificed (KCl), frozen and the heart was cryo-sectioned. Blue arrows indicate the IMP sediments, while the brown-red substance that appears in the ventricles is blood. Scale bar is 1 mm. Squares in (a,b) show higher magnification view of the content in the RV cavity.
