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Liver lesion with Dual Energy
Dual Energy in Clinical Routine with syngo CT Oncology
By Marco Das, MD
Department of Diagnostic Radiology, University Hospital, RWTH-Aachen University, Germany
Since the introduction of the SOMATOM® Definition, the world’s first Dual Source CT, significant progress has been made in the direction of functional imaging by using the unique capabilities of Dual Energy.
Solitary pulmonary nodule in an adult patient with DECT. Courtesy of Asan Medical Center, Seoul
Enhanced syngo Dual Energy Software
By Bernhard Krauss, PhD
Business Unit CT, Siemens Healthcare, Forchheim, Germany
Spiral Dual Energy CT exploits the effect that X-ray absorption is energy-dependent: Two X-ray sources running simultaneously at different voltages acquire two data sets showing different attenuation levels.
On the mixed series the impression of a virtual 120 kV image is created.
Dual Energy CT in Pulmonary Embolism
By Ralf W. Bauer, MD, Philipp Weisser, MD, Huedayi Korkusuz, MD, Prof. Thomas J. Vogl, MD, and J. Matthias Kerl, MD
Department of Diagnostic and Interventional Radiology, Johann Wolfgang Goethe University Hospital, Frankfurt, Germany
Both computed tomography (CT) and ventilation/perfusion single photon emission computed tomography (SPECT V/Q) have been used for years as established methods for the diagnosis of pulmonary embolism (PE).
Axial thin slice images of a 2-phase liver scan. FBP-image with B31 convolution kernel
Iterative Image Reconstruction Moves into Clinical Practice
By Herbert Bruder, PhD, Rainer Raupach, PhD, Karl Stierstorfer, PhD, Thomas Flohr, PhD
Business Unit CT, Siemens Healthcare, Forchheim, Germany
In the last 20 years, a variety of iterative reconstruction approaches were developed. But introduction into clinical practice has been handicapped due to slow convergence of reconstruction and the demand for extensive computer power.
Contrast enhanced CT images (VRT) of Chiloscyllium punctatum showing blood volume
Okinawa Churaumi Aquarium: Imaging Marine Animals with the SOMATOM Spirit
Okinawa Churaumi Aquarium ranks among the fi ve largest in the world and has achieved a long list of “bests” and “firsts”. Now Churaumi Aquarium has become the first aquarium in Japan to use a CT scanner, specifically to diagnose marine animals.
By Katharina Otani, PhD, Tetsuo Onishi, Takumi Katsuya
Siemens-Asahi Medical Technologies, Tokyo, Japan
Spatiotemporal Multi-Band Filter for Reducing Artifacts and Dose
By Rainer Raupach, PhD
Business Unit CT, Siemens Healthcare, Forchheim, Germany
Siemens AG has developed a new algorithm – spatiotemporal Multi-band Filter called 4D Noise Reduction – for use with modern CT scanners when performing routine dynamic CT examinations.
