An improvement is provided to a method for obtaining an in vivo MR image of an organ or tissue of an animal or human subject, of the type including administering to the subject as a contrast agent to enhance such MR image an effective amount of a colloid including superparamagnetic metal oxide particles...http://www.google.fr/patents/US5160726?utm_source=gb-gplus-shareBrevet US5160726 - Filter sterilization for production of colloidal, superparamagnetic MR contrast agents
Filter sterilization for production of colloidal, superparamagnetic MR ...