Siemens SOMATOM Definition Edge – Overview

The SOMATOM Definition Edge is a 128-slice single-source CT scanner engineered for high-speed, high-resolution imaging. Designed to meet diverse clinical needs, it features Siemens’ proprietary Stellar Detector, SAFIRE dose reduction, and TwinBeam dual-energy capabilities — all within a compact, high-performance footprint.

System Specifications:

• Detector System: Stellar Detector

• Slices Acquired: 128 slices per rotation

• Reconstructed Slices: Up to 384 per rotation

• Rotation Time: 0.28 seconds

• Spatial Resolution: 0.30 mm

• Temporal Resolution: 142 ms

• Scan Speed: Up to 230 mm/s

• Z-axis Coverage: 38.4 mm

• Generator Power: 100 kW

• Tube Voltage (kV): 70–140 kV

• Tube Current (max): 650 mA

• Gantry Opening: 78 cm

• Patient Weight Limit: 307 kg (676 lbs)

• Dose Reduction: SAFIRE (Sinogram Affirmed Iterative Reconstruction)

• Dual Energy: TwinBeam Dual-Energy enabled

Clinical Applications:

• Emergency and trauma imaging

• Cardiac and vascular applications

• Pediatric imaging (with low-dose protocols)

• Obese and high-BMI patients

Siemens SOMATOM Force – Overview

The SOMATOM Force is Siemens’ flagship dual-source CT system, delivering unmatched speed, resolution, and dose efficiency. It combines two Vectron X-ray tubes with StellarInfinity detectors to achieve up to 384 slices per rotation and scanning speeds exceeding 700 mm/s — enabling whole-body scans in under a second and exceptional temporal resolution.

Specifications:

• X-ray Tubes: 2 × Vectron X-ray tubes

• Detectors: 2 × StellarInfinity with 3D anti-scatter grid

• Slices Acquired: 384 slices (2 × 192) per rotation

• Rotation Time: Up to 0.25 seconds

• Spatial Resolution: 0.24 mm

• Temporal Resolution: Up to 66 ms

• Scan Speed: Up to 737 mm/s with Turbo Flash mode

• Generator Power: 2 × 120 kW (total 240 kW)

• kV Range: 70–150 kV (adjustable in 10 kV steps)

• Gantry Opening: 78 cm

• Table Load: 307 kg (676 lbs)

Practical Highlights:

• Ultra-fast cardiac imaging, even without beta-blockers

• Excellent for low-dose pediatric imaging

• High temporal and spatial resolution for advanced diagnostics

• Tailored for advanced research, oncology, and lung screening

• Low-dose full-body scans in <1 second

Summary

Both the Siemens SOMATOM Force and SOMATOM Definition Edge represent the pinnacle of diagnostic imaging, but they serve distinct roles. The Definition Edge delivers exceptional resolution and workflow efficiency within a single-source architecture, making it ideal for high-volume hospitals and trauma centers seeking robust performance and dose control. Meanwhile, the Force takes CT technology a step further with dual-source power, unmatched temporal resolution, and ultra-fast scanning — enabling low-dose, full-body imaging and advanced cardiac studies with minimal motion artifacts. Whether your clinical focus is advanced research, cardiovascular excellence, or scalable daily throughput, both systems offer long-term value and cutting-edge technology designed to meet the evolving demands of modern radiology.

Disclaimer and Source Credit:

This article was originally published by Imaging Quest LLC on iqmedmart.com on May 19, 2025. All data included is accurate to the best of our knowledge, based on publicly available information from Siemens and other resources in addition to personal view.

Siemens Healthineers, Somatom Definition Edge, and Somatom Force are registered trademarks of Siemens Healthineers.