A magnetic resonance (MR) active invasive device system employs a radio-frequency (RF) coil embedded in an invasive device for the purpose of generating MR angiograms of a selected blood vessels. A subject is first placed in a polarizing magnetic field. The invasive device is then placed into a selected...http://www.google.se/patents/US5447156?utm_source=gb-gplus-sharePatent US5447156 - Magnetic resonance (MR) active invasive devices for the generation of selective MR angiograms
