GE MRI Shutdown Procedure

This article features the GE MRI shutdown procedure. Additional articles, video and step-by step procedures available on the GE MRI Operator Manual Procedures page.

Table of Contents
  1. GE Signa LX to Signa HDxt MRI Shutdown Procedure
  2. Software Version 20x and above Shutdown Procedure

GE Signa LX to Signa HDxt MRI Shutdown Procedure

Standard shutdown
Use these steps to perform a system shutdown, which terminates power to the system electronics in an orderly
fashion so image files are saved. This procedure does not turn off power to the MRI magnet.

  1. Make sure all images have reconstructed and are available for display from the Patient List.
  2. End an exam, if necessary.
  3. Wait for all archive, network, filming, CD/DVD, etc. functions to complete.
  4. Remove any archive media, if necessary.
  5. From the header area of the screen, click the Tools icon arrow and select System Power off.
  1. When prompted, click Yes.
    The applications begin to shut down, which can take up to 60 seconds. A pop-up window displays.
    *System power off preparation takes up to 60 second for system cool down. During that time, please do not power off the system.

When the shutdown is complete, the screen goes blank and the computer turns off.
Extended shutdown
Use these steps to execute an extended power shut down once the computer has successfully shutdown and the
computer power is off.
The equipment room is typically used by service engineers to service the equipment. Use caution when inside the
equipment room.
Do NOT open any GE MRI System Cabinets or protective covers. There are dangerous high voltages within the
cabinets.
The Main Disconnect Panel (MDP) is the in-coming Power for the MRI compressor in the Integrated Cooling Cabinet
(ICC). Do NOT turn off power to this component. It must remain on to maintain liquid helium levels at the proper temperature to
maintain correct magnet pressure.

Software Version 20x and above Shutdown Procedure

  1. Confirm that the computer is turned off.
  2. From the ISC1
    complete the following:
    a. Open the small access door to view the Main Breaker. See Figure 3-14.
    b. Move the breaker to the horizontal position. See 2 in Figure 3-14.
    Only the ISC is turned off. The ISC contains the Power Distribution Unit (PDU) for the MRI System. It results in
    noise as the relays and switches open.
    Sumitomo compressor and coldhead remain on.
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