MRIQ Severe Structured Horizontal White-noise Band Artifacts on Profile.
Symptom
MRIQ Severe Structured Horizontal White-noise and Dark Band Artifacts on Profile See Long Description Structured horizontal white-noise band artifacts in all images on all PSD’s. Artifact was severe in intensity and happened on all coils (see image; 904264mrp 50442ser9ima1 gradients on). Also getting intermittent dark bands and fine line (see RF_Shield_artifacts attachment). Power & Grounding Team found issues with facility grounds; loose and corroded connections at the Main Disconnect and building transformer. Building is shared with a metal fabricator business and a CT scanner. Fixing the grounds reduced noise but had no effect on the banding.
Applies to
- Models
- Excite
- Product
- Profile with Excite
- Software
- ProfileHD Applies to Profile (Excite), MGD contains 1 VRE/ICN. Software is 14.x based.
- Component
- 2145364 RF Shield Part number includes both top and bottom shields.
- Area
- MR
Full cause & step-by-step resolution
The complete cause analysis, the step-by-step remedy and the attached service documents for this GE Healthcare MR issue are available to FSELIB subscribers — re-authored, web-first, searchable.
7-day free trial · no credit card required
Related GE Healthcare MR issues
- TPS/MGD fails to download or reset. mgd_term windows fail to mount file system.
- The Carriage Fails to Advance to Latch to the Table and to Retract When it is Raised, Undocked or Lowered.
- Unable to Load Applications Software during restoreinfo Due to Corrupt saveinfo Disk.
- CWA ID100315. Auto and Manual Prescan Fails.
- Ghosted or Smeared Head Images Using Head Coil due to Head TR Assembly.
- A Copper Coolant Line or Pipe Internal to the MCS Cabinet Chiller Burst due to Water Remaining in Unit Freezing During Shipment.