CT System

A. Feature

• Get two steps ahead in Preventive Care with kidney-friendly scanning and low dose early detection.
• Get two steps ahead in Freezing Motion with "free-breathing" CT imaging and the industry's fastest, most versatile scan mode.
• Get two steps ahead in Decision Making with 4D imaging at half the regular dose and precise Dual Energy quantification. So stop trying to keep up – be two steps ahead with the new SOMATOM® Force.

B. Specification

1. Thoraco-Abdominal Imaging With the new Vectron tube, TAVI planning in a heavy patient with chronic kidney disease (shrunken kidney) can be performed at only 90 kV. The increased contrast-to-noise ratio allows the reduction of contrast media down to 40 ml. Due to the minimal renal strain, the patient can soon undergo his subsequent minimal invasive procedure.

Collimation: 2 x 192 x 0.6 mm Tube settings: 90 kV, 194 mAs

Spatial resolution: 0.24 mm DLP: 334 mGy cm

Scan time: 1.44 s CTDIvol: 4.4 mGy

Scan length: 727 mm Contrast media: 40 mL

Rotation time: 0.25 s Eff. dose: 5.0 mSv

2. Thoracic Imaging

In this obese patient, suffering from dyspnea (shortness of breath), Turbo Flash scanning allowed to perform the examination without a breathhold command or the patient holding his breath. Maximizing the contrast-to-noise ratio at 70 kV shows great vessel contrast while preserving softtissue contrast – with a contrast media dose of only 30 mL.

Collimation: 2 x 192 x 0.6 mm Tube settings: 70 kV, 633 mAs

Spatial resolution: 0.24 mm DLP: 83 mGy cm

Scan time: 0.7 s CTDIvol: 2.38 mGy

Scan length: 294 mm Contrast media: 30 mL

Rotation time: 0.25 s Eff. dose: 1.2 mSv

3.　Thoracic Imaging

A 140 kg patient was scanned with Cardiac Turbo Flash mode at only 100 kV and 40 ml contrast media. The left main and the left anterior descending artery are shown without artifacts from motion or photon starvation. The new mode allows a pitch-dependent field of view, ranging from 35 to 50 cm, and is suitable for patients up to 220 kg.

Collimation: 2 x 192 x 0.6 mm Tube settings: 100 kV, 581 mAs

Spatial resolution: 0.24 mm CTDIvol: 5,76 mGy

Scan time: 0.2 s DLP: 99 mGy cm

Scan length: 125 mm Contrast media: 40 mL

Rotation time: 0.25 s HR independent Temp resolution: 66 ms

Eff. dose: 1.7 mSv  

4.　Thoracic Imaging

The new 90/150 kV Sn mode and a 35 cm field of view allow for obese DE examinations (male, 48 years, 100 kg). The new Selective Photon Shield II increases energy separation by 30%. This combination expands DE information also to challenging patients for more precise tissue and material decomposition.

Collimation: 2 x 192 x 0.6 mm Tube settings: 90/150 kV Sn, 104/76 mAs

Spatial resolution: 0.24 mm CTDIvol: 5.54 mGy

Scan time: 3.6 s DLP: 187 mGy cm

Scan length: 309 mm Eff. dose: 2.6 mSv

Rotation time: 0.25 s  

5.　Detector 2 x StellarInfinity detector with 3D Anti-Scatter collimator

6.　Number of acquired slices 384 (2 x 192)

7.　Rotation time up to 0.25 s

8.　Temporal resolution 66 ms

9.　Generator power 240 kW (2 x 120 kW)

10.　kV settings 70-150 kV, in steps of 10

11.　Spatial resolution 0.24 mm

12.　Max. scan speed 737 mm/s1 with Turbo Flash

13.　Table load up to 307 kg / 676 lbs1

14.　Gantry opening 78 cm