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What This Guide Helps With
Addresses interrupted 3D acquisitions or reconstruction failures caused by positioning, obstructions, movement, communication, workflow, storage, or system-readiness problems.
Step-by-Step Troubleshooting
1. Protect the Patient and Stop Repeated Failed Spins
If a 3D spin aborts during a procedure, do not repeatedly retry the acquisition without identifying an obvious correctable cause. Repeated attempts may add radiation exposure and delay care.
If 3D imaging remains clinically necessary, use another verified imaging option or follow the clinical contingency plan.
Expected outcome: Patient care continues without unnecessary repeat 3D exposures.
2. Confirm Whether Acquisition or Reconstruction Failed
Determine whether:
- The mechanical spin did not begin.
- The spin began and aborted.
- Image acquisition appeared to complete but reconstruction failed.
- The workstation stopped responding afterward.
- A collision or positioning warning appeared.
- The problem occurs only from certain orientations.
- The issue follows system movement or a workstation communication problem.
Record the exact message displayed.
Expected outcome: The problem is separated into acquisition, motion, communication, or reconstruction behavior.
3. Verify 3D Workflow Readiness
Confirm that the Cios Spin has fully initialized and that all required system components show ready status before beginning the 3D workflow.
Verify the detector, workstation, monitors, and associated system communications are available.
Expected outcome: The system enters the 3D workflow without an unresolved readiness condition.
4. Inspect the Planned Spin Path
Before attempting another test acquisition, inspect the entire intended movement envelope for obstructions.
Check:
- Table components.
- Patient-support equipment.
- Surgical equipment.
- Cables and tubing.
- Drapes.
- Stands.
- IV poles.
- Monitor hardware.
- Other objects that could enter the C-arm path.
Do not defeat collision safeguards.
Expected outcome: The planned movement path is unobstructed.
5. Verify C-Arm Positioning and Mechanical Readiness
Confirm the system is positioned appropriately for the intended 3D acquisition and that brakes, locks, and movement controls respond normally.
If the system cannot achieve or maintain the required position, stop the 3D test and troubleshoot the movement issue separately.
Expected outcome: The C-arm can perform the required movement without abnormal resistance, uncontrolled motion, or positioning warnings.
6. Check External Cables and Communication Connections
Inspect externally accessible system, workstation, detector, and monitor-cart communication cables.
Look for:
- Loose connections.
- Damaged cables.
- Excessive tension during movement.
- Cables pulled when the system rotates.
- Connections disturbed during transport.
Expected outcome: Communication remains stable throughout normal movement.
7. Verify Workstation Availability and Workflow State
Confirm the workstation is responsive and operating normally before another test.
Check for obvious operator-accessible conditions such as:
- Pending workflow requiring completion.
- Unresponsive application.
- Incomplete patient/exam selection.
- Available local storage concerns indicated by the system.
- Reconstruction function unavailable because of an unresolved system state.
Do not delete clinical data or change protected configuration as a troubleshooting shortcut.
Expected outcome: The workstation is able to receive and process a 3D acquisition.
8. Perform One Controlled Restart if Appropriate
If no physical obstruction or communication issue is found and the failure appears software-related, perform one controlled system shutdown and restart.
Allow full initialization before rechecking 3D readiness.
Expected outcome: All components initialize correctly and the prior software or communication condition clears.
9. Perform Approved 3D Functional Verification
When clinically appropriate and using an approved test object or phantom, perform the required 3D functional check.
Verify:
- The spin begins normally.
- Movement completes without collision or interruption.
- Acquired data transfers successfully.
- Reconstruction completes.
- The reconstructed dataset displays normally.
- No unexplained warning remains.
Avoid unnecessary repeat acquisitions.
Expected outcome: 3D acquisition and reconstruction complete successfully. Troubleshooting can stop.
10. Escalate Repeated 3D Failures
If the spin still aborts or reconstruction repeatedly fails after external conditions are ruled out, remove the system from service for 3D use and follow facility policy regarding whether any limited 2D use is permissible.
Do not adjust motion control, reconstruction software, calibration, detector timing, or protected service parameters without qualified service authorization.
Expected outcome: An unreliable 3D imaging function is not used clinically.
If the Problem Persists
Once physical clearance, positioning, system readiness, accessible connections, workstation operation, and controlled restart have been ruled out, remaining causes may involve motion-control systems, detector synchronization, workstation computing, reconstruction software, storage, communication, calibration, or service-level configuration.
The Cios Spin should be:
- Removed from service or restricted from clinical use according to facility policy.
- Labeled Out of Service when required.
- Sent for qualified repair or service evaluation.
- Evaluated using Siemens Healthineers documentation and approved 3D imaging test equipment.
- Repaired, calibrated, or configured only by qualified personnel.
Complete 3D acquisition, movement-safety, reconstruction, image-quality, and other required return-to-service testing before restoring full clinical use.
Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
Clear the full 3D movement envelope before acquisition; a cable or accessory that is harmless during 2D imaging can interfere during a spin.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Staff reported the Cios Spin repeatedly aborted a 3D acquisition shortly after rotation began."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found an equipment cable routed into the intended C-arm movement path and creating a collision risk."
Resolution
What action was taken.
Example:
"The cable was rerouted and secured, the movement path was rechecked, and an approved test 3D acquisition and reconstruction completed successfully."
Helpful Details to Include (If Known)
- Exact 3D error or warning.
- Whether failure occurred during spin or reconstruction.
- C-arm position.
- Obstruction or collision condition.
- Cable routing.
- Workstation responsiveness.
- Detector readiness.
- Restart results.
- Test phantom used.
- Reconstruction result.
- Final 2D and 3D status.
- Final device status.
Final Thought
Prevent unnecessary repeat exposure, inspect the entire spin path and communication chain before assuming an internal fault, verify a complete test acquisition, and escalate repeated failures appropriately.
That is successful troubleshooting.