Patent ID: 7304477

Claim:
A magnetic resonance imaging (MRI) apparatus comprising: a main magnet system for generating a main magnetic field in an examination space; a gradient coil system which is substantially situated between the main magnet system and the examination space and which is provided with sub-gradient coils and a binding material having a glass temperature for keeping in the sub-gradient coils together; control means for controlling the temperature of the gradient coil system; and temperature-influencing means for influencing, on the basis of control signals originating from the control means, the temperature of the gradient coil system; wherein the control means are arranged for controlling, during operation of the MRI apparatus, the temperature of the binding material of the gradient coil system to a value above the glass temperature; and, wherein the temperature-influencing means and the control means are arranged so as to be able to influence, to a different degree, the temperature of respective, different parts of the gradient coil system.