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SOMATOM Definition Edge

“Ortalamayı kabul etmek” yerine “beklentileri aşmak” – En iyisinden azıyla yetinmeyin.


Coronary CTA for higher heart rates

Introducing a rotation speed of 0.28 s, and a temporal resolution of 142 ms to clinical CT routine, the new SOMATOM Definition Edge provides excellent image quality in cardiac imaging even for higher heart rates of more than 80 bpm.

Collimation: 128 x 0.6 mmTube settings: 100 kV, eff. 98 mAs
Scan time: 3.7 sDLP: 179 mGy cm
Scan length: 137 mmCTDIvol: 11.39 mGy
Rotation time: 0.28 sEff. dose: 2.5 mSv
Heart rate: 81 bpm 

(Images: CIMOP Bizet, Paris, France)


TAVI planning with a pitch of 1.7

With an acquisition speed of up to 23 cm/s (pitch 1.7), the new SOMATOM Definition Edge boosts contrast media efficiency and substantially shortens scan times, especially in pre-procedural TAVI/TAVR planning.

Collimation: 128 x 0.6 mmTube settings: 100 kV, 70 eff. mAs
Pitch: 1.7DLP: 172 mGy cm
Scan time: 2.5 sCTDIvol: 2.77 mGy
Scan length: 580 mmEff. dose: 2.49 mSv
Rotation time: 0.28 sHeart rate: 77 bpm

(Images: LMU Grosshadern, Munich, Germany)


Plaque differentiation with 0.5 mm slices

Routinely high rotation speed, combined with Edge technology and 0.5 mm slices, delivers additional diagnostic information for more precise plaque differentiation.

Collimation: 128 x 0.6 mmTube settings: 80 kV, 75 eff. mAs
Flash scan modeDLP: 72.65 mGy cm
Scan time: 6.0 sCTDIvol: 4.38 mGy
Scan length: 146 mmEff. dose: 1.0 mSv
Rotation time: 0.28 sHeart rate 67 bpm

(Images: CIMOP Bizet, Paris, France)


Comprehensive stroke assessment

The Adaptive 4D Spiral puts perfusion scanning on a new level. Being able to evaluate perfusion deficits in a very short time, and to effortlessly acquire scan range beyond detector coverage, greatly improves stroke assessment and workflow.

VPCTCTA
Collimation: 32 x 1.2 mmCollimation: 128 x 0.6 mm
Scan time: 44.0 sScan time: 6.0 s
Scan length: 90 mmScan length: 370 mm
Rotation time: 0.5 sRotation time: 0.5 s
Tube settings: 80 kV, 200 eff. mAsTube settings: 120 kV, 211 eff. mAs
DLP: 2.8 mGy cmDLP: 724 mGy cm
CTDIvol: 237.49 mGyCTDIvol: 18.47 mGy
Eff. dose: 5.88 mSvEff. dose: 3.04 mSv

(Images: LMU Grosshadern, Munich, Germany)


Emergency Care for obese patients

The SOMATOM Definition Edge provides outstanding tube and generator power and faster scan speeds (up to 23 cm/s) to guarantee optimal image quality even in challenging cases, for example obese patients.

Collimation: 128 x 0.6 mmTube settings: 120 kV, 130 eff. mAs
Pitch: 1.7DLP: 260 mGy cm
Scan time: 1.1 sCTDIvol: 8.83 mGy
Scan length: 252 mmEff. dose: 3.64 mSv
Rotation time: 0.28 s 

(Images: Olmsted Medical Center, USA)


Emergency Care for pediatric patients

In challenging cases, such as this 9 months old baby with suspected bronchia stenosis, the SOMATOM Definition Edge’s faster pitch (of 1.7) and higher rotation time (of 0.28s) allow for acquiring diagnostic information with free breathing at an ultra low dose of DLP 2 mGy cm.

Collimation: 128 x 0.6 mmTube settings: 100 kV, 4 eff. mAs
Scan time: 0.6 sDLP: 2 mGy cm
Scan length: 133 mmCTDIvol: 0.14 mGy
Rotation time: 0.28 sEff. dose: 0.17 mSv

(Images: Linköping University Hospital, Linköping, Sweden)


iterative Metal Artifacts Reduction (iMAR)

iMAR1,2 technology applies iterative corrections to reduce metal artifacts effectively. Even in challenging cases, such as two hip prostheses, the pelvic anatomical structures can be clearly visualized.

Collimation: 128 x 0.6 mmTube settings: 100 kV, 372 eff. mAs
Scan time: 9.5 sDLP: 682.4 mGy cm
Scan length: 448.5 mmCTDIvol: 14.7 mGy
Rotation time: 0.5 sEff. dose: 10.2 mSv

(Images: Luzerner Kantonsspital, Luzern, Switzerland)


Infra-renal abdominal aortic aneurysm (AAA)

CT angiography acquired with TwinBeam Dual Energy, using automatic bone removal, converts a large dataset into three dimensional visualizations very conveniently and easily.

Collimation: 64 x 0.6 mmTube settings: AuSn120 kV, 301 eff. mAs
Scan time: 44 sDLP: 1,007.8 mGy cm
Scan length: 1,534 mmCTDIvol: 6.44 mGy
Rotation time: 0.33 sEff. dose: 8 mSv

(Images: University Erlangen-Nuremberg, Erlangen, Germany)


Pediatric Cerebrum

ADMIRE3, the latest generation of iterative reconstruction, greatly enhances image quality while reducing radiation dose. In this pediatric cerebral examination, great grey-white matter differentiation was achieved using a radiation dose of CTDIvol 21.1 mGy in combination with ADMIRE.

Collimation: 128 x 0.6 mmTube settings: 120 kV, 146 eff. mAs
Scan time: 5.7 sDLP: 329.9 mGy cm
Scan length: 140 mmCTDIvol: 21.1 mGy
Rotation time: 1 sEff. dose: 1.3 mSv

(Images: Luzerner Kantonsspital, Luzern, Switzerland)


Automated spine reconstruction and labeling

FAST Spine helps streamline workflows when reconstructing spine datasets. In challenging cases, such as this 13 years old boy with scoliosis, the benefits of reduced door-to-image time boost diagnostic accuracy and confidence – and make a huge difference in patient management.

Collimation: 128 x 0.6 mmTube settings: 100 kV, 52 eff. mAs
Scan time: 18 sDLP: 96 mGy cm
Scan length: 541 mmCTDIvol: 1.64 mGy
Rotation time: 1.0 sEff. dose: 1.44 mSv

(Images: Erasmus Medical Center, Rotterdam, Netherlands)


Rule out of pulmonary diseases

The Stellar Detector technology, in combination with high-end iterative reconstruction algorithms, such as SAFIRE4 and ADMIRE, facilitates ruling out pulmonary disease at an early stage, using ultra low doses.

Collimation: 128 x 0.6 mmTube settings: 100 kV, 10 eff. mAs
Scan time: 1.9 sDLP: 15 mGy cm
Scan length: 300 mmCTDIvol: 0.39 mGy
Rotation time: 0.28 sEff. dose: 0.21 mSv

(Images: CIMOP Bizet, Paris, France)


Smaller tumor visualization

Metal artifacts can impact the visualization of the surrounding tissues, as shown in this case – a small tumor, adjacent to a tibial metal fixation, therefore needs to be corrected properly. With iMAR1,2, Siemens presents an exclusive iterative metal artifact reduction technique that enhances diagnostic confidence and provides clear guidance for biopsy.

Collimation: 128 x 0.6 mmTube settings: 120 kV, 157 eff. mAs
Scan time: 4.4 sDLP: 173.3 mGy cm
Scan length: 147 mmCTDIvol: 10.61 mGy
Rotation time: 0.5 sEff. dose: 2.6 mSv

(Images: University Hospital of Basel, Basel, Switzerland)


Follow-up tumor treatment

A follow-up scan of a liver metastasis after microwave ablation treatment acquired by TwinBeam Dual Energy1 shows a hypodense lesion in the liver and in the right kidney. The image contrast is greatly increased by monoenergetic imaging. And both lesions show no significant enhancement in the fused VNC/ iodine image. Therefore, residual tumor tissue can be confidently excluded and a kidney cyst can be diagnosed.

Collimation: 64 x 0.6 mmTube settings: AuSn120 kV, 410 eff. mAs
Scan time: 19.6 sDLP: 528.1 mGy cm
Scan length: 634 mmCTDIvol: 8.8 mGy
Rotation time: 0.28 sEff. dose: 8.7 mSv

(Images: University Erlangen-Nuremberg, Erlangen, Germany)

1 This feature is 510(k) pending. Not available for sale in the U.S.

2 iMAR is designed to yield images with a reduced level of metal artifacts compared to conventional reconstruction if the underlying CT data is distorted by metal being present in the scanned object. The exact amount of metal artifact reduction and the corresponding improvement in image quality achievable depends on a number of factors, including composition and size of the metal part within the object, the patient size, anatomical location and clinical practice. It is recommended, to perform iMAR reconstruction in addition to conventional reconstruction.

3 In clinical practice, the use of ADMIRE may reduce CT patient dose depending on the clinical task, patient size, anatomical location, and clinical practice. A consultation with a radiologist and a physicist should be made to determine the appropriate dose to obtain diagnostic image quality for the particular clinical task

4 In clinical practice, the use of SAFIRE may reduce CT patient dose depending on the clinical task, patient size, anatomical location, and clinical practice. A consultation with a radiologist and a physicist should be made to determine the appropriate dose to obtain diagnostic image quality for the particular clinical task. The following test method was used to determine a 54 to 60% dose reduction when using the SAFIRE reconstruction software. Noise, CT numbers, homogenity, low-contast resolution, and high contrast resolution were assessed in a Gammex 438 phantom. Low dose data reconstructed with SAFIRE showed the same image quality compared to full dose data based on this test. Data on file.

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