Toshiba Aquilion One
Toshiba · Model Aquilion One
Faster results, lower dose The wide coverage provided by the 16 cm wide area detector enables scanning of most of the organs within one rotation, eliminating the need for helical scanning which in turns lowering the dose dramatically. An entire organ can be captured at one time, resulting in ultrafast scan times, which allows the contrast medium dose and exposure dose to be reduced. Clinical benefits Apart from this dramatic dose reduction, there is another important aspect: : cardiac arrhythmia or heart rates up to 130 bpm are no longer an issue as opposed to helical an multislice CT. Online assessment of the imaged RR-interval by the software of the new CT unit ensures that image reconstruction can proceed as planned. Additionally, if the patient experienced an unexpected extrasystole or if there is insufficient data of one image for artefact-free reconstruction, the scanner will automatically image one additional heartbeat in the same fashion and without any noticeable time-delay.
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
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Image artefacts (rings / streaks / noise)
HighSymptoms: Ring or band artefacts, excessive noise, HU non-uniformity, failed daily air/water calibration.
Root cause: Detector-channel drift or a bad detector module, a DAS fault, or air-cal / tube-output drift.
X-ray tube fault / end of life
HighSymptoms: Tube-arc errors, exposure aborts, kV/mA faults, spits, or noisy bearing; tube pulls high heat units.
Root cause: Anode / bearing wear or vacuum degradation - the CT tube is a wear item.
Gantry rotation / slip-ring fault
MediumSymptoms: Rotation faults, comms errors during rotation, brush dust, drive alarms.
Root cause: Worn slip-ring brushes, a drive-belt / bearing fault, or the data-transmission link.
Table / patient-positioning fault
MediumSymptoms: Table drifts, will not index to the correct position, height or cradle errors.
Root cause: Table drive, encoder, or brake fault.
Reconstruction / console / network fault
MediumSymptoms: Recon hangs or is slow, images will not send to PACS, console errors.
Root cause: Recon-hardware or console-PC fault, or the network / storage.
Chiller / cooling fault
MediumSymptoms: Over-temperature warnings, exposures inhibited after a series, coolant alarm.
Root cause: Chiller pump / fan, low coolant, or a blocked heat exchanger.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
CT X-ray tube assembly
Major planned replacement; track heat-unit history.
Class Periodic replacementRel. cost $$$$R&R Expert-level
Detector module / DAS board
Class Major service partRel. cost $$$$R&R Expert-level
Slip-ring brush set
Class Periodic replacementRel. cost $$R&R Moderate
Gantry drive belt / bearings
Class Major service partRel. cost $$$R&R Difficult
Table drive / encoder
Class Major service partRel. cost $$$R&R Difficult
Chiller pump / coolant
Class Periodic replacementRel. cost $$R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| CT X-ray tube assembly Major planned replacement; track heat-unit history. | Periodic replacement | $$$$ | Expert-level |
| Detector module / DAS board | Major service part | $$$$ | Expert-level |
| Slip-ring brush set | Periodic replacement | $$ | Moderate |
| Gantry drive belt / bearings | Major service part | $$$ | Difficult |
| Table drive / encoder | Major service part | $$$ | Difficult |
| Chiller pump / coolant | Periodic replacement | $$ | Moderate |
Relative cost: $ lowest · $$$$ 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 starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Ring or streak artefacts / failed calibration
- Run the daily air (fast) calibration; if it fails, run the full calibration set.
- Scan a uniform water phantom and review HU uniformity and noise.
- Check the tube warm-up and heat-unit status.
- Escalate a confirmed detector-channel or DAS fault to the OEM.
- Re-verify image quality with the phantom after any correction.
Symptom: Exposure aborts / tube-arc errors
- Note the exact error codes and the phase (warm-up vs scan).
- Run extended tube conditioning / seasoning.
- Review the arc-count and heat-unit trend.
- Confirm chiller operation and coolant level.
- Plan a tube replacement when arc counts climb or output drifts.
Technical Specs
- Type (configuration)
- Multislice
- Slices
- 320
- Maximum Scan Range
- 200 cm
- Gantry (Max. Clearance)
- 72 cm
- Patient Weight Capacity
- 660 lbs
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
Potential problem with the cardiac function analysis software (CFA). Incorrect analysis results may be displayed in the Function Parameters for the Entire Heart displayed as analysis results of the CFA and in a Left-Ventricular Volume Curve generated based on some of those parameters.
- RECALL
Toshiba America Medical Systems, Inc. initiated this recall due to the failure of the parts used in the X-ray high-voltage generator. In some cases, X-ray exposure cannot be performed.
- RECALL
Toshiba intitiated this recall because their investigation revealed that due to a problem of the X-ray output control software, the X-ray output conditions may not be set correctly. As a result, X-ray exposure under the scan conditions used for contrast study may not start.
- RECALL
Due to a problem with the control software of the x-ray high-voltage generator, if scanning is performed with a tube current less than 30mA, the control software may detect an error and perform error processing even though the x-ray output is normal.
- RECALL
The recall was initiated because Toshiba has confirmed that their is a potential software issue for the TSX-301A Aquilon One and the TSX-301B Aquilon One.
- RECALL
Toshiba America Medical Systems (TAMS) is initiating a field correction for the TSX-301A and TSX-301B: Aquilion 64 System, X-Ray, Tomography because communication between reconstruction units in the system console may be broken due to failure of the optical conversion connector, resulting in a break of communication between units.
- RECALL
Incorrect Dose Calculation. The software that performs the pre-scan dose calculation uses an incorrect parameter for an exam Plan using a tube voltage of 80kV or 100kV. This results in a pre-scan expected dose that is approximately 10% lower than what the displayed value should be when the scanner executes the exam Plan.
- RECALL
Toshiba America Medical Systems (TAMS) has found that communication may be cut off in the Aquilion ONE/ Premium Systems, owing to the failure of a part used in the console.
- RECALL
When W-Volume is performed in Prospective CTA or Target CTA studies with ECG gating, unnecessary intervals may be set before starting the volume scan. As a result, scanning cannot be performed at the appropriate timing of constant enhancement and clinically useful images may not be obtained.
- RECALL
ECG Gated Dynamic Volume Prospective scan may stop if preset eXam Plan is confirmed and CTA On is changed to CTA OFF, due to exposure control PWB.
- RECALL
The SureStart function may not operate in the usual manner, and you may obtain abnormal analysis results when using the cerebral blood flow analysis function.
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