APPARATUS FOR ACTIVE COOLING TO MRI PATIENT BORE IN CYLINDRICAL MRI SYSTEM

摘要

PROBLEM TO BE SOLVED: To dissipate heat generated by an inclined coil and an RF coil used in MRI. SOLUTION: A patient bore 140 is composed of two concentric cylinders 131 and 132 separated by a spacer 133 laid in the longitudinal direction or a spiral shape. In another embodiment of this invention, fluid can pass in any of the spiral shape or the longitudinal direction so as to pass through a tube 232 joined to an outside diameter of the patient bore for directly cooling a part exposed to a patient in the patient bore 240. In a third embodiment, a part of a patient bore 340 can be formed by the RF coil 330 by arranging a fluid channel 332 in the spiral shape or the longitudinal direction by surrounding the patient bore 340. COPYRIGHT: (C)2005,JPO&NCIPI