A TECHNIQUE FOR COOLING A RECEIVE COIL OF A MAGNETIC RESONANCE IMAGING APPARATUS
Publication Date: 2016-Jun-28
The IP.com Prior Art Database
A technique for air cooling a receive coil of a magnetic resonance imaging (MRI) apparatus is proposed. The proposed technique uses a cable hose pre-existing in the MRI apparatus, a cavity between coil printed circuit board (PCB) and a plastic cover. The plastic cover imports air to cool receive coil, which is imported from body coil cooling air or patient cooling air.
The present disclosure relates generally to a magnetic resonance imaging apparatus and to a technique for air cooling receive coil of the MRI apparatus
International Electrotechnical Commission (IEC) standard requirement is that surface temperature of a receive coil of a magnetic resonance imaging (MRI) apparatus should be lesser than 41⁰C. Conventionally, MRI apparatus designs use natural passive cooling methods.
However, for some special working conditions, the surface temperature of the receive coil is a little bit higher than the IEC standard requirement. The surface temperature rises above the IEC standard because of inadequate cooling of diodes on coil printed circuit board (PCB). Rise in temperature of the receive coil increases the possibility of patient being imaged getting hurt and also makes ambience for the patient uncomfortably hot.
One conventional technique uses a refrigeration unit such as a Stirling cooler. The cold head of the Stirling cooler is connected by a non-metallic conductive rod to the receive coil. However, such technique requires addition of the refrigeration unit to the MRI apparatus.
It would be desirable to have an improved technique for cooling the receive coil of the MRI apparatus.
BRIEF DESCRIPTION OF DRAWINGS
Figure 1, depicts import of air using a plastic cover, to a receive cool from body coil cooling air or patient cooling air.