Toshiba Aquilion ONE (formerly Toshiba)
Manufacturer: Toshiba Medical · Modality: CT
The 320-slice CT that pioneered whole-organ single-rotation imaging. 320 detector rows × 0.5 mm = 160 mm Z-axis coverage per rotation. Shipped in 2007 under the Toshiba Medical brand; now under Toshiba Medical post-2016 acquisition.
Clinical significance
Aquilion ONE's distinctive capability: scan an entire organ (brain, heart, liver) in a single rotation, no helical sweep required. This eliminates the temporal misregistration that helical CT introduces and enables protocols that aren't practical on narrower detectors:
- Whole-brain perfusion in a single acquisition — no interslice timing differences
- Whole-heart single-beat cardiac — no helical artifact, reduced contrast volume
- Whole-liver dynamic perfusion — functional hepatic imaging
- 4D angiography — time-resolved angiographic volumes
Specs
- 320 × 0.5 mm detector rows = 160 mm Z-axis
- 70 cm gantry aperture
- 0.275 sec minimum rotation (0.35 sec typical clinical)
- PUREViSION / Gemstone tube class (Canon's heat-capacity flagship)
- AiCE deep-learning reconstruction (recent generations)
- Dual-energy via spectral CT (later variants)
Competing architectures
- Siemens Force — dual-source 2 × 192 slices, different approach to speed + dual-energy
- GE Revolution Apex — 256 slices, 160 mm Z-axis, more-recent architecture
- Philips iCT — 256 slices
Aquilion ONE was first to market with 160 mm Z-axis coverage; competitors caught up on the spec but Canon retained the architectural advantage into the Genesis / PRISM generations.
Variants
- Aquilion ONE (original 2007)
- Aquilion ONE ViSION (updated imaging chain)
- Aquilion ONE GENESIS (current generation, ~2016)
- Aquilion ONE PRISM (photon-counting, emerging)
Service reality
Canon tube ecosystem is different from GE Performix + Siemens Straton. Aftermarket parts less deep than Philips/GE/Siemens in the US but strong in Asia-Pacific. Service contracts dominate.