• Discovery MR750 3.0T System Service Methods
  • 5690009-2EN Revision 4
  • Object ID: 00000018WIA3061DE20GYZ
  • Topic ID: id_13105814 Version: 2.0
  • Date: Feb 22, 2021 1:47:08 AM

3.0T 32-Channel Body Array Coil Setup for MCQA Test

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
1Not Applicable30 minutesNot Applicable
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
TL Unified Phantom for 3.0T2-

5343347-2

-
3.0T Body Array Phantom Positioner Assembly (consists of upper positioner and lower positioner)1-

5400426

-

About this task

The 3.0T 32-channel body array coil (PN 5391469) consists of anterior coil (PN 5391468) and posterior coil (PN 5392802). It is recommended that you perform MCQA scans using the full mode when both anterior and posterior coil are available.

This module provides setup instructions for:

The 3.0T body array coil MCQA test uses the 3.0T phantoms, which are pink.

Note:

Coils do not ship with phantoms. Phantoms come in a unified phantom set with the MR system.

Topic ID: id_SL12133035-1209918

Full Mode MCQA Setup

Procedure

  1. Place the 3.0T body array posterior coil on the table.
  2. Place the body array lower phantom positioner on the side of the posterior coil. Confirm that the edge of the phantom position aligns with the edge of the table and is in contact with the posterior coil.
    Figure 1. Positioning of Posterior Coil on Table
    Item Description
    1Edge of coil and phantom positioner
    2Edge of phantom positioner and table
  3. Connect the posterior coil to the P2 connector.
  4. Place the lower body array phantom positioner on the posterior coil. Center the lower phantom positioner L/R on the posterior coil. Place the unified phantoms inside the lower positioner. Place the upper body array phantom positioner. Make sure the side with the wider edge foam points towards the LPCA and magnet side.
    Figure 2. Unified Phantoms inside Lower Phantom Positioner
    Figure 3. Upper Phantom Positioner Placed on Lower Phantom Positioner
  5. Place the anterior coil on top of the upper phantom positioner. Be sure the anterior is centered directly over the posterior coil. Fasten the straps of the anterior and posterior coil. Plug the anterior coil in connector P1 on the LPCA.
    Figure 4. Phantom Positioners Centered Left-Right on Posterior Coil
  6. Landmark at the center cross-hair of the anterior coil and advance to scan.
    Figure 5. Landmark Location on Anterior Coil
    Item Description
    1Up2
    2Up3
    3Center
    4Low3
    5Low2
    6Cable
    Figure 6. Landmark Setup with Coil inside Bore
  7. Run the MCQA Tool.

    Confirm that the correct coil ID is displayed in the Current Coil field: 3.0T_DV_32chBodyArray_Coil_by_GE_Unified. Enter the coil serial number and press Start.

Topic ID: id_SL12133036-1209918

Anterior Only Mode MCQA Setup

Procedure

  1. Place the body array phantom positioner (lower) on the table.
  2. Center the phantom positioner left/right on the patient table. Confirm that the edge of the phantom positioner (upper) aligns with the edge of the table and touches the phantom positioner lower.
  3. Place the phantoms inside the bottom positioner. Make sure the side with the wider edge foam points towards the LPCA and magnet side.
    Figure 7. Both Phantom Positioners on Table
    Item Description
    1Edge of upper phantom positioner aligned with edge of table
    2Direction to magnet
  4. Place the body array phantom positioner (upper) on the phantoms.
  5. Place the body array anterior above the phantom positioner (upper) and route the anterior coil cable along the edge of the table.
  6. Plug the connector into P1.
  7. Landmark at the center cross-hair of the anterior coil Figure 8 and advance to scan.
    Figure 8. Landmark Location on Anterior Coil
  8. Run MCQA Tool . Confirm that the correct coil ID is displayed in the Current Coil field: 3.0T_DV_32chBodyArray_AnteriorCoil_by_GE_Unified. Enter the coil serial number, and press Start.
Topic ID: id_SL12133135-1209918

Posterior Only Mode MCQA Setup

Procedure

  1. Place the 3.0T body array posterior coil with the nest pad on the table.
  2. Place the body array phantom positioner (lower) on the side of the posterior coil. Ensure that the edge of the phantom positioner aligns with the edge of the table and is in contact with the posterior coil as shown.
    Figure 9. Positioning Posterior Coil on Table
    Item Description
    1Edge of coil and phantom positioner
    2Edge of phantom positioner and table
  3. Connect the posterior coil to P2 connector on the LPCA.
  4. Place the lower phantom positioner on the posterior coil.
  5. Center the phantom positioner L/R on the posterior coil.
  6. Place the unified phantoms inside the bottom positioner.
  7. Place the upper phantom positioner. Confirm that the side with the wider edge foam points towards the LPCA and magnet side.
    Figure 10. Unified Phantoms inside Lower Phantom Positioner
    Figure 11. Upper Phantom Positioner on Top of Lower Phantom Positioner
  8. Landmark at the center of the phantom positioner. Press Advance to scan.
    Figure 12. Landmark on Upper Phantom Positioner
    Item Description
    1Landmark spot on upper phantom positioner
    2Direction to magnet/LPCA
  9. Run MCQA Tool. Confirm that the correct coil ID is selected in the Current Coil field: 3.0T_DV_32chBodyArray_PosteriorCoil_by_GE_Unified. Enter the coil serial number and press Start.
Topic ID: id_14929940

Finalization

Finalization

After the test is complete, remove the phantom positioners, the phantoms, and the coil. Return them to their storage area.