A novel RF coil attached to an invasive device, such as a catheter, is used to detect magnetic resonance (MR) signals for monitoring the position of the device within a subject and for the acquisition of high-resolution magnetic resonance images of the tissue surrounding the device. The novel ...http://www.google.com.au/patents/US5715822?utm_source=gb-gplus-sharePatent US5715822 - Magnetic resonance devices suitable for both tracking and imaging
