Injector for injection of pre-polarised fluid into a patient for magnetic resonance (MR) measurement

A method for injecting pre-polarised fluid into a patient for MR imaging, the method comprising the steps of:

• supplying a fluid to a polarising apparatus;
• using the polarising apparatus to polarise the fluid;
• delivering the polarised fluid to a reservoir at a first delivery rate;
• and
• delivering the polarised fluid from the reservoir to a patient at a second delivery rate different than the first delivery rate.

A system for injecting pre-polarised fluid into a patient for MR imaging, the system comprising:

• a fluid supply;
• a polarizing means in fluid communication with the fluid supply;
• a first reservoir for receiving fluid;
• a valve in fluid communication with each of the polarising means and the first reservoir, whereby the valve is adapted to selectively discard fluid or direct fluid into the first reservoir;
• and
• a tube in fluid communication with the first reservoir for supplying polarised fluid to the patient.