RF(RADIO FREQUENCY) COIL, RF MAGNETIC FIELD GENERATOR, AND MAGNETIC RESONANCE IMAGING(MRI) METHOD AND APPARATUS

摘要

PURPOSE: An RF(Radio Frequency) magnetic field generator is provided, which can generate an RF magnetic field effectively, and a magnetic resonance imaging(MRI) apparatus is provided, which provides a low SAR(Specific Absorption Rate). CONSTITUTION: Electrical paths extended radiating in all directions supply a current to generate an RF magnetic field in a space where a patient is placed. And a ring-shaped electrical path is located farther from the patient space than the electrical paths extended radiating in all directions, and links each end part of the extended electrical paths. According to the MRI method, a static magnetic field is generated in the patient space, and then a gradient magnetic field is generated in the space by a static magnetic field generation part(2), and then an RF magnetic field is generated in the space. And magnetic resonant signals are measured from the space, and an image is generated on the basis of the measured magnetic resonance signals.