Description
Overview
The Siemens SOMATOM Definition CT Scanner platform redefines clinical performance across general radiology, emergency trauma, and advanced cardiology. Available in single-source configurations (Definition AS/Edge) and pioneering Dual-Source architectures (Definition Flash), the series overcomes traditional limitations of scan speed, tube cooling delays, and patient motion artifacts.
Featuring a wide 78 cm gantry bore, high table weight capacity (up to 300 kg), and the revolutionary STRATON™ X-ray tube technology, the SOMATOM Definition accommodates pediatric, bariatric, and critical care patients with ease. With Dual Energy (DE) tissue characterization and SAFIRE™ / ADMIRE™ iterative reconstruction, clinicians gain crisp structural detail and quantitative diagnostic insights while reducing radiation dose exposure by up to 60%–80%.
Key Features & Advanced Technologies
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Dual-Source & Flash Spiral Technology (Flash Models): Utilizes two X-ray sources and two detector arrays operating simultaneously. Enables scan speeds up to 458 mm/s, allowing a complete thorax scan in 0.6 seconds and full-body trauma acquisition in under 5 seconds.
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STRATON™ Direct-Cooled Tube Architecture: Zero-heat-storage X-ray tube featuring direct oil cooling, delivering rapid thermal dissipation (up to 7.3 MHU/min) for continuous high-mA operation without tube-cooling delays.
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78 cm Wide Gantry Aperture: Generous clearance simplifies trauma patient access, bariatric positioning, CT-guided interventions, and radiation therapy immobilizers.
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Stellar / UFC™ Integrated Detectors: Fully integrated detector electronics reduce electronic noise at the diode level, enhancing spatial resolution and soft-tissue low-contrast visibility.
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SAFIRE™ & ADMIRE Iterative Reconstruction: Advanced model-based iterative reconstruction software that minimizes image noise and artifacts, supporting sub-mSv scan protocols.
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FAST CARE Architecture:
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FAST (Fully Assisting Scanner Technology): Automates field-of-view setup, alignment, and post-processing workflows.
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CARE (Combined Applications to Reduce Exposure): Includes CARE kV and CARE Dose4D™ for real-time anatomical dose optimization.
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Technical Specifications
| Parameter | Specification |
| Slice Capabilities | Single-Source: 20, 40, 64, 128 Slices / Dual-Source: 256 / 384 Slices |
| Gantry Aperture (Bore) | 78 cm |
| Rotation Speed | Down to 0.28 seconds (360° rotation) |
| Temporal Resolution | Down to 75 ms (heart-rate independent on Dual Source) |
| X-Ray Tube Type | Single or Dual STRATON™ High-Performance Tube(s) |
| Generator Power | Up to 100 kW (Single Source) / 200 kW (Dual Source) |
| Spatial Resolution | Up to 30 lp/cm (0.24 mm isotropic detail) |
| Max Table Load Capacity | Up to 227 kg to 300 kg (~500–660 lbs) |
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