Patient infusion and imaging system

A patient infusion and imaging system, the system comprising:

• a magnetic resonance imaging (MRI) scan room shielded from electromagnetic interference;
• image acquisition equipment positioned within the MRI scan room, the image acquisition equipment comprising a magnetic source;
• and
• an IV liquid infusion apparatus configured to be positioned at any location within the MRI scan room without introducing image degrading RF interference and without being affected by magnetic fields produced by the magnetic source, the IV liquid infusion apparatus comprising:
• a peristaltic pump disposed to receive a liquid conduit and to transfer IV liquid through the liquid conduit from a liquid IV container source;
• a non-magnetic ultrasonic motor configured to provide mechanical movement to the peristaltic pump in response to applied multiphasic electrical signals to provide positive displacement of the IV liquid from the IV container source;
• and
• a non-magnetic controller configured to selectively actuate the motor to drive the pump, and thereby transfer liquid from the IV container source through the liquid conduit at a controllable volumetric rate,
• wherein the controller is housed in an RF-shielded housing configured to inhibit radiation of RF signals at least in the spectral range of about 6 MHz to 130 MHz.