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What This Guide Helps With
Troubleshooting poor image quality, artifacts, or degraded ultrasound images caused by probes, settings, or external environmental factors.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- If image quality impacts diagnostic accuracy, stop use and move the patient to a properly functioning ultrasound system.
- Expected: Patient care continues without diagnostic risk
- Why it matters: Poor imaging can lead to misdiagnosis or missed findings
Verify the Reported Issue
- Power on the system and reproduce the issue.
- Observe the image for grainy or noisy image, dropout or shadowing, lines or streaks, or frozen/lagging image.
- Expected: Artifact or degradation is visible and consistent
- Why it matters: Confirms a true imaging issue, not user perception or exam variability
Check Probe Condition and Selection
- Inspect the active probe for cracks in the housing or lens, cable damage or kinks, and contamination such as gel buildup or debris.
- Try a different probe if available.
- Expected: Image improves with alternate probe if original is faulty
- Why it matters: Probes are the most common cause of image degradation
Verify Probe Connection
- Disconnect and reconnect the probe securely.
- Inspect the connector for bent pins, debris, or fluid contamination.
- Expected: Secure connection with no visible damage
- Why it matters: Poor connections can introduce noise or signal loss
Check Imaging Presets and Settings
- Verify the correct exam preset is selected (e.g., cardiac vs abdominal).
- Adjust gain, depth, focus, and frequency.
- Reset to default preset if needed.
- Expected: Image quality improves with proper settings
- Why it matters: Incorrect settings can mimic hardware failure
Evaluate Environmental Factors
- Check for nearby sources of interference such as other electronic equipment or poor grounding.
- Move the system or plug into a different outlet if needed.
- Expected: Reduction in noise or interference artifacts
- Why it matters: Electrical interference can degrade signal quality
Check System Performance
- Observe for lagging, freezing, slow response, overheating, or abnormal fan noise.
- Restart the system.
- Expected: System operates smoothly after reboot
- Why it matters: Software or processing issues can affect image rendering
Inspect and Clean the Probe Properly
- Clean the probe lens using approved wipes.
- Remove dried gel or residue.
- Expected: Clear image without distortion
- Why it matters: Surface contamination directly affects acoustic transmission
Test Across Multiple Modes
- Switch between imaging modes such as 2D, Doppler, and M-mode.
- Expected: Determine if issue is isolated to one mode or system-wide
- Why it matters: Helps isolate probe vs processing vs system issue
If the Problem Persists
If image degradation continues after verifying probes, connections, settings, and environment, the issue is likely internal (beamformer, processing board, or probe failure).
Remove the device from service, label it Out of Service, and send for repair or bench evaluation.
Clinical Use Tip
Never troubleshoot image quality on an active patient exam. Always transition the patient to another system before performing testing or adjustments.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Ultrasound system producing poor image quality with visible artifacts during cardiac exam."
Cause
What was observed during troubleshooting.
Example:
"Damaged phased array probe causing signal dropout and image distortion."
Resolution
What action was taken.
Example:
"Removed defective probe from service and replaced with functional probe; confirmed normal imaging restored."
Helpful Details to Include (If Known)
- Alarm behavior (if any)
- Accessories swapped (probes tested)
- Power behavior and system performance
- Environmental factors or interference present
- Indicator lights or system messages
- Final device status (in service or removed)
Final Thought
Image quality issues should always be approached from the outside in—starting with probes, connections, and settings before assuming system failure. Patient safety depends on accurate imaging, and proper escalation is just as important as troubleshooting. Clear documentation ensures continuity and accountability.
That is successful troubleshooting.