Superconducting Magnet
The main components of an MRI system are the superconducting magnet, the gradient system, the RF system and the computer system. The magnet produces a strong, static field and the radiofrequency transmit and receive coils excite and detect the MR signal. The magnetic field gradients localise the MR signal and the computer system facilitates scanner control, image display and archiving. This chapter will describe each of these components in turn. Figure 1-1 below shows the general layout of an MRI system.
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