Hologic QDR 4000
Hologic · Model QDR 4000
• QDR OnePage Fx combines scan and analysis results with fracture risk indication based on World Health Organization criteria • QuickHELP provides a virtual “walk through” of the QDR 4000’s capabilities • Practice Development Guide helps promote your bone densitometry services • DICOM Compliant• Precise, reliable DXA technology - still the “goldstandard” of bone densitometry • Scans spine, hip, and forearm and research applications • Advanced computer system and printer, includes modem, SuperDisk drive and CD ROM • NHANES Reference Database complies with standardization guidelines • Pencil beam technology • Low patient dose • Low profile design
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.
Power supply fault
MediumSymptoms: Unexpected shutdown, unit won't power on.
Root cause: PSU or backup battery aging.
Recon / system software hang
LowSymptoms: Frozen console, acquisition timeout.
Root cause: Workstation or storage degradation.
Network / DICOM connectivity fault
MediumSymptoms: Images fail to transfer, PACS timeout.
Root cause: Network configuration or interface card fault.
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 / GPU
Class Periodic replacementRel. cost $$$R&R Difficult
Power supply unit
Class Major service partRel. cost $$R&R Moderate
Network interface card
Class Major service partRel. cost $R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Workstation / GPU | Periodic replacement | $$$ | Difficult |
| Power supply unit | Major service part | $$ | Moderate |
| Network interface card | Major service part | $ | Fairly easy |
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: Recon / system software hang
- Confirm the presentation - typically frozen console, acquisition timeout - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: workstation or storage degradation.
- 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 workstation / GPU 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: Network / DICOM connectivity fault
- Confirm the presentation - typically images fail to transfer, PACS timeout - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: network configuration or interface card fault.
- 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 power supply unit 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.
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
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