MRI electronics and data processing

Last revised by Andrew Murphy on 2 Apr 2020

As an introduction to the electronics and data processing of the MRI scanner, a schematic diagram has been provided (figure 1).

Starting from the right hand side, we have the computer that directs all of the action in the MRI acquisition and acquires and processes the data. The computer tells the gradient amplifiers and radio frequency (RF) transmitter when to turn on and off to obtain the proper pulse sequence. The RF receiver amplifier is also controlled by the computer and relays the signal received by the RF coil from the patient to the A-D converter that digitizes the signal, and from there to the computer to be reconstructed into an image.

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Cases and figures

  • Figure 1: MRI electronics flow chart
    Drag here to reorder.