• SIGNA™ Hero 3.0T Service Methods
  • 5852800-8EN Revision 1.0
  • Object ID: 00000018WIA305F8110GYZ
  • Topic ID: id_2004214 Version: 7.0
  • Date: Jul 10, 2019 2:43:48 PM

Setting up total digital imaging (TDI) head neck array (HNA)

Set up the total digital imaging (TDI) of the head neck array (HNA) for the Multi-Coil Quality Assurance (MCQA) check.

Prerequisites

The 3.0T coil MCQA uses the 3.0T phantoms, which are pink in color.
Note: Coils do not ship with phantoms. Phantoms come in a unified phantom set with the system.
Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1-30 minutes-
Tools and test equipment
ItemQuantityPart numberManufacturer
Large Cylindrical Unified Phantom (for 3.0T)15342679-2-
TL Unified Phantom (for 3.0T)15343347-2-
TDI Head Neck Array (HNA) Phantom Positioner (shipped with TDI HNA)15887766-
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.

Procedure

  1. Remove the flat filler panel from the table, if present.
  2. Place the HNA posterior unit on the table.
  3. Connect the coil to port P2 on the table.
    Figure 1. Placement of HNA posterior unit
  4. Place the HNA phantom positioner into the HNA posterior unit.
  5. Place the large cylindrical unified phantom and TL unified phantom into the HNA phantom positioner.
    Figure 2. Placement of large cylindrical and TL unified phantoms
    Note: Use the correct phantom positioner shipped with the coil; otherwise it will affect the MCQA result.
  6. Connect the HNA face unit with the HNA posterior unit.
    Figure 3. Connection of HNA face and posterior units
  7. Landmark the coil at the crosshair mark and press Advance to Scan.
    Figure 4. Landmarking coil
  8. Run the MCQA check.
    Note: Select 3.0T_32Ch_TDI_HNU_by_GE (or equivalent platform option) in the Current Coil field.
    Figure 5. MCQA tool menu