• SIGNA™ Hero 3.0T Service Methods
  • 5852800-8EN Revision 1.0
  • Object ID: 00000018WHA305C3EGYZ
  • Topic ID: id_2002769 Version: 4.0
  • Date: Nov 3, 2021 4:05:16 PM

Running LVShim

The objective of the LVShim tool is to fine-tune magnet homogeneity.

Prerequisites

Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1-30 minutes10 minutes
Tools and test equipment
ItemQuantityPart numberManufacturer
LVShim Phantom Inner Sphere12274476-
Universal Phantom Pad146-328383P1-
Required conditions
Confirm that passive shimming is complete and is within specification.
Remove all coils from the cradle and phantoms from the bore.
Safety

Before working in any GE Healthcare MR suite or performing any GE Healthcare service procedure, you must:

  • Have read and understood all hazard conditions and safety requirements in the latest revision of the GE Healthcare MR Service Safety Manual (5452735).
  • Have successfully completed all relevant GE Healthcare Environmental Health and Safety (EHS) courses (or for non-GE employees, equivalent workplace training courses).
  • Comply with all site-specific training and workplace safety requirements.

If you have any safety concerns at any time, do not begin work or immediately stop work and move to a safe location. Immediately contact your supervisor or site safety officer for instructions on how to proceed.

Note: For systems running PX28.0 or earlier, use the LV phantom side lobes. For systems running PX29.0 or later, use the LVShim Phantom Inner Sphere with the Universal Phantom Pad. If LV phantom side lobes are used on a system running PX29.0 or later, an error message displays.