MRI apparatus and method for calculating predicted and/or...

Details MRI apparatus and method for calculating predicted and/or... MRI apparatus and method for calculating predicted and/or...

2005-12-20

2005-12-20

Gutierrez, Diego (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

C324S318000

Reexamination Certificate

active

06977501

ABSTRACT:
A magnetic resonance imaging apparatus includes a calculator that calculates the quantity of heat generated (or to be generated) in a gradient magnetic field coil as a function of current supplied (or to be supplied) to the gradient magnetic field coil and at least one other factor such as eddy currents induced in a shield body used for shielding gradient field leakage flux from the imaged volume and/or delayed measurement of actual coil temperature. Such improved more timely temperature prediction and/or measurement is used to effect protective actions to better prevent permanent coil damage due to overheating.

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