A US patent has been issued on reduction of implant heating during magnetic resonance examination. Excessive heating of cardiac pacemaker is a significant problem in magnetic resonance imaging. This prohibits patients with implants to be examined with this powerful imaging technique. Yigitcan Eryaman and Ergin Atalar have addressed this problem by adjusting the applied electromagnetic field in way that minimizing the implant heating. A US patent filed on this subject was filed on Mar 31, 2010 and issued on Nov 27, 2012 with patent number 8,319,496. The text of the patent can be found in the following link.