Adjustments/Calibrations
- System
- Gradient
- Radio Frequency (RF)
  - Body Coil Tuning
  - Calibrating transmit/receive dynamic disable
    Calibrates the open circuit fault detection levels of the dynamic disable drivers in the driver module. Do this procedure after system installation, driver module replacement, body coil replacement, body hybrid replacement, or replacement of cabling between any of the previously listed devices.
  - Probe
- Magnet Enclosure
- Patient Table
- Global Operator Console (GOC)
- Spectroscopy

Discovery MR750 3.0T System Service Methods
5690009-2EN Revision 4
Object ID: 00000018WIA30E48030GYZ
Topic ID: id_12374319 Version: 1.1
Date: Jul 5, 2019 10:03:33 PM

Manual Entry Probe/SV SNR Protocols

This document contains the Non-Proprietary protocols for Testing Probe-S and Probe-P SNR. Refer to Probe/SV Calibration and SNR Tests for the complete calibration procedure, and substitute the protocols below for the Service protocols listed.

Refer to Table 1 for the non-proprietary Probe-S SNR Protocol.
Refer to Table 2 for the non-proprietary Probe-P SNR Protocol.

Table 1. PROBE-S SNR PROTOCOL
Patient Register New Pt PATIENT INFORMATION Patient ID `geservice` Patient Name `probes snr` Weight (Lb) `111` (IMPORTANT) Landmark Landmark >Nasion Patient Protocols Patient Position Patient Position Patient Position >Supine Patient Entry >Head First Coil ...HeadAccept Imaging Parameters Plane >Axial Mode >MRS Pulse Seq ...Probe-SAccept Imaging Options Ext. Dyn. Range Psd Name (no entry) Protocol (no entry) Scan Timing # of Echoes `1` (default) TE 30 TR 2000	User CVs Screen CV3 scan mode1.00 CV4 total # of scans32.00 Scanning Range FOV24 Start S10 EndI10 StartR10 EndL10 StartA10 EndP10 Table Delta`0.00` (default) Acquisition Timing Freq1 Phase1 NEX2.00 Freq Dir>A/P Auto Center Freq>Water, `Autoshim`selected, `Contrast`not selected Save series Prepare to Scan Research Operations Display CVs `CV Name` `CV Value` tempC `(greenest value on MRS Phantom)` Accept Research Operations Download

Table 2. PROBE-P SNR PROTOCOL
Patient Register New Pt PATIENT INFORMATION Patient ID `geservice` Patient Name `probep snr` Weight (Lb) `111` (IMPORTANT) Landmark Landmark>Nasion Patient Protocols Patient Position Patient Position Patient Position>Supine Patient Entry>Head First Coil...HeadAccept Imaging Parameters Plane>Axial Mode>MRS Pulse Seq...Probe-PAccept Imaging Options Ext. Dyn. Range Psd Name (no entry) Protocol (no entry) Scan Timing # of Echoes `1` (default) TE 35 TR 2000	User CVs Screen CV3 scan mode 1.00 CV4 total # of scans 32.00 CV15 Phantom = tempC value CV17 = `0` CV18 = `7` Scanning Range # CSI Slices1 FOV24 Start S10 EndI10 StartR10 EndL10 StartA10 EndP10 Table Delta`0.00` (default) Acquisition Timing Freq1 Phase1 NEX2.00 Freq Dir>A/P Auto Center Freq>Water, `Autoshim`selected, `Contrast`not selected Save series Prepare to Scan Research Operations Display CVs `CV Name` `CV Value` tempC `(greenest value on MRS Phantom)` Accept Research Operations Download