SYSTEM, METHOD AND APPARATUS FOR COMPENSATING FOR DRIFT IN A MAIN MAGNETIC FIELD IN AN MRI SYSTEM

摘要

A method for compensating for drift in a main magnetic field of a superconducting magnet in a magnetic resonance imaging (MRI) system includes measuring a pressure in a cryostat of the superconducting magnet. Based on the pressure, a parameter of an element of the MRI system is adjusted to correct or compensate for a change in the main magnetic field.