Neusoft NeuViz
Neusoft · Model NeuViz
• Bring new level of quality, simplicity and reliability to CT imaging; • Fast scan speed with scan time up to 0.8s enables examinations like thorax study in one breath-hold, and greatly reduces motion artifact; • New design of gantry with large 70 cm bore and ±30° tilting enables the examination of corpulent patients and complicated patient positioning; • Compact size, low installation and lifecycle cost; Excellent image quality with thickness down to 0.8mm at low dose provides finest details for accurate diagnoses; Easy and user-friendly interface guides the operator and workflow automatically to higher patient throughput; Automatic Voice and Graphic Prompt Breathing are helpful to guide children & the elderly; DICOM Standard 3.0 interface.
Key tips
- ·Never bypass a radiation interlock to "just get the image" - this is one of the few true zero-tolerance rules in BMET work.
- ·Trend image-quality phantom results over time - drift shows up before an outright failure does.
- ·Portable/mobile units take real physical abuse from transport - check wheel locks and cable strain reliefs more often than fixed units.
Typical Failure Modes
Failure patterns typical of this equipment class - general BMET reference, not verified against this exact unit's own service history unless flagged. Severity is a category-level estimate.
Detector calibration drift
MediumSymptoms: Image noise, artifacts, low SNR.
Root cause: Flat-panel / sensor aging.
Cooling system fault
HighSymptoms: Tube temp alarm, duty-cycle limited.
Root cause: Pump/radiator or coolant loss.
Generator / high-voltage fault
HighSymptoms: Exposure fails, kV/mA out of range error.
Root cause: HV tank or generator board fault.
Recon / system software hang
LowSymptoms: Frozen console, acquisition timeout.
Root cause: Workstation or RAID degradation.
Serviceable Parts & Consumables
The parts a BMET typically services on this class of equipment. Service class and relative cost are general engineering estimates for the category, not figures from this unit's documentation. Part numbers appear only when pulled from this unit's own service manual. Always confirm intervals and pricing against the manufacturer.
Workstation RAID / GPU
Class Periodic replacementRel. cost $$$R&R Difficult
X-ray tube insert
Major R&R; track mAs history.
Class Major service partRel. cost $$$$R&R Expert-level
Flat-panel detector
Class Major service partRel. cost $$$$R&R Expert-level
Cooling pump & radiator
Class Periodic replacementRel. cost $$$R&R Difficult
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Workstation RAID / GPU | Periodic replacement | $$$ | Difficult |
| X-ray tube insert Major R&R; track mAs history. | Major service part | $$$$ | Expert-level |
| Flat-panel detector | Major service part | $$$$ | Expert-level |
| Cooling pump & radiator | Periodic replacement | $$$ | Difficult |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Daily QC per modality: image-quality phantom test
- ·Tube and detector inspection
- ·Annual state-required radiation safety survey
- ·Vendor-scheduled preventive maintenance
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: X-ray tube overheating / filament failure
- Confirm the presentation - typically tube won't fire, heat-capacity alarm - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: filament wear, cooling failure.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the x-ray tube insert per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Symptom: Detector calibration drift
- Confirm the presentation - typically image noise, artifacts, low SNR - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: flat-panel / sensor aging.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the flat-panel detector per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Technical Specs
- Type (configuration)
- Single slice
- Slices
- Single
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Radiology / Imaging department
- Emergency Department (portable units)
- Operating Room (C-arms)
- Cath lab
- Bedside ICU (portable X-ray)
Documents & Manuals
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
For surview scan length more than 500mm,if the user aborts or skips the reconstructed surview, the image may have the wrong field of view (FOV). When user plans and performs subsequent clinical scan with the wrong FOV the actual start and end position may not be consistent with the planned positons.
- RECALL
Software defect: For Helical scan with ClearView function, when small arc (uninterrupted scan) occurs during scan, there will be some electromagnetic interference in the system which may affect the control signal of the flying focal spot, resulting in an incorrect flying focal spot sequence. If the system does not receive error, it would continue to complete the scan with the incorrect flying focal spot sequence, having an effect on the reconstruction of some images, resulting in image loss.
- RECALL
Software defect
- RECALL
The Firm discovered during contrast agent tracking scan, when the expected concentration of contrast agent is reached, later planned scan may be interrupted. The system must be powered down and restarted to clear the interruption error before scanning can resume.
- RECALL
It was found by R&D in April, 2014 that there was a defect in NeuViz 64 system software version 1.0.5+P09. The icons of side decubitus didn't meet the patient position description, when the scanner position was set to "Right" in the system setting - scanner options.
- RECALL
The A-plane compensator is made of Teflon which will become fragile due to X-ray exposure passing through it. The thinnest part of the compensator is subject to radiation degradation and as a result has been found to fail prematurely. Failure is indicated by pin or ring artifact in the image
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