Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Syngo DynaCT Cardiac from Siemens: 3D images for cardiovascular imaging

28.08.2009
At the ESC (European Society of Cardiology) Congress 2009, Siemens will be demonstrating a new cardiac application for the syngo DynaCT Cardiac imaging application.

During transfemoral aortic valve replacement, a heart valve prosthesis gets implanted via peripheral artery access. To position aortic valve prostheses accurately, the cardiologist must have very precise knowledge of the individual anatomy of the patient’s aorta.

That's where syngo DynaCT Cardiac comes in: During the intervention, it generates CT-like cross-sectional images on an angiographic C-arm system and offers 3D reconstruction of the aortic root. These 3D images can be overlaid on actual fluoroscopic images and provide a kind of three-dimensional roadmap for the examiner. Thus, with syngo DynaCT Cardiac, the cardiologist can position the valve prosthesis more accurate and more quickly than before.

For most patients worldwide, open heart surgery is performed for the placement of an aortic valve prosthesis. The most frequent reason for this intervention is the constriction of the valve, so-called aortic valve stenosis, which occurs primarily in elderly persons. In the course of time the valve loses elasticity and no longer fully opens. This decreases the flow of blood, and the organs no longer receive a sufficient supply of oxygen. Normally, the operation requires opening the sternum. The heart has to be temporarily stopped and its function taken over by a heart-lung machine. Especially for elderly and severely ill patients with accompanying diseases such as heart failure, renal failure and diabetes, such an intervention is risky.

Recently, new procedures have been developed in which the the aortic valve prosthesis is implanted in the heart using a catheter rather than through the usual open heart surgery. This involves an intervention often performed jointly by the cardiologist and the heart surgeon. First, through a small incision in the groin artery, a special balloon catheter is guided to the heart to dialate the stenosed aortic valve. Then, a collapsed heart valve is also inserted up to the valve level via a balloon catheter; there it is unfolded and attached to the surrounding tissue with a so-called "stent".

For such complex transcatheter techniques, high-performance angiographic systems like those in the Siemens Artis zee family are used, since they provide the best possible imaging, even in a completely sterile OR environment. With these systems physicians can follow the minimally invasive intervention on an X-ray screen while directly monitoring the function of the valve prosthesis, which can possibly spare the patient postoperative measures.

Prior to such interventions it is imperative that the cardiologist gets a comprehensive picture of the heart and vessels. Previously, this normally required imaging with CT scanners or MRI systems, which led to additional costs. For this reason, Siemens (as the first company in the medical field in 2004) developed an application that can generate CT-like 3D images directly on an angiography system: Syngo DynaCT. The application has been continually fine-tuned and developed, so that today it combines the advantages of three-dimensional CT imaging with live X-ray imaging of the beating heart in one examination and on a single system. The CT-like images of the heart are produced by rotating the C-arm at high speed around the patient. In this way, several hundred images are acquired and reconstructed as 3D volumes. If the acquisition is triggered via the patient ECG, even time-dependent 3D volumes can be generated for visualization of the beating heart. The complete 3D image is available in less than a minute. Anatomical structure segments are overlaid with the live X-ray image, allowing the physician to navigate with the catheter quickly and confidently without the use of a contrast medium.

The Siemens Healthcare Sector is one of the largest suppliers of healthcare technology worldwide. The company is a medical solution provider with core competences and innovative strengths in diagnostic and therapeutic technologies as well as knowledge processing, including information technology and system integration. With its acquisitions in laboratory diagnostics, Siemens Healthcare is the first integrated healthcare company that combines imaging and lab diagnostics, therapy solutions and medical information technology and also supplements these with consultation and services. Siemens Healthcare offers solutions for the entire supply chain under one roof - from prevention and early detection to diagnosis and to treatment and aftercare. In addition, Siemens Healthcare is the global brand leader for innovative hearing aids. Siemens Healthcare currently has around 49,000 employees worldwide and is represented in more than 130 countries. During fiscal 2008 (ending on September 30), Siemens Healthcare achieved a total sales volume of € 11.17 billion and incoming orders totaling € 11.78 billion. The Group earnings amounted to € 1.23 billion.

Marion Bludszuweit | Siemens Healthcare
Further information:
http://www.siemens.com/healthcare

More articles from Trade Fair News:

nachricht Fraunhofer HHI at Mobile World Congress with VR and 5G technologies
24.02.2017 | Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut, HHI

nachricht MWC 2017: 5G Capital Berlin
24.02.2017 | FOKUS - Fraunhofer-Institut für Offene Kommunikationssysteme

All articles from Trade Fair News >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breakthrough with a chain of gold atoms

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

In the field of nanoscience, an international team of physicists with participants from Konstanz has achieved a breakthrough in understanding heat transport

Im Focus: DNA repair: a new letter in the cell alphabet

Results reveal how discoveries may be hidden in scientific “blind spots”

Cells need to repair damaged DNA in our genes to prevent the development of cancer and other diseases. Our cells therefore activate and send “repair-proteins”...

Im Focus: Dresdner scientists print tomorrow’s world

The Fraunhofer IWS Dresden and Technische Universität Dresden inaugurated their jointly operated Center for Additive Manufacturing Dresden (AMCD) with a festive ceremony on February 7, 2017. Scientists from various disciplines perform research on materials, additive manufacturing processes and innovative technologies, which build up components in a layer by layer process. This technology opens up new horizons for component design and combinations of functions. For example during fabrication, electrical conductors and sensors are already able to be additively manufactured into components. They provide information about stress conditions of a product during operation.

The 3D-printing technology, or additive manufacturing as it is often called, has long made the step out of scientific research laboratories into industrial...

Im Focus: Mimicking nature's cellular architectures via 3-D printing

Research offers new level of control over the structure of 3-D printed materials

Nature does amazing things with limited design materials. Grass, for example, can support its own weight, resist strong wind loads, and recover after being...

Im Focus: Three Magnetic States for Each Hole

Nanometer-scale magnetic perforated grids could create new possibilities for computing. Together with international colleagues, scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) have shown how a cobalt grid can be reliably programmed at room temperature. In addition they discovered that for every hole ("antidot") three magnetic states can be configured. The results have been published in the journal "Scientific Reports".

Physicist Dr. Rantej Bali from the HZDR, together with scientists from Singapore and Australia, designed a special grid structure in a thin layer of cobalt in...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Booth and panel discussion – The Lindau Nobel Laureate Meetings at the AAAS 2017 Annual Meeting

13.02.2017 | Event News

Complex Loading versus Hidden Reserves

10.02.2017 | Event News

International Conference on Crystal Growth in Freiburg

09.02.2017 | Event News

 
Latest News

Stingless bees have their nests protected by soldiers

24.02.2017 | Life Sciences

New risk factors for anxiety disorders

24.02.2017 | Life Sciences

MWC 2017: 5G Capital Berlin

24.02.2017 | Trade Fair News

VideoLinks
B2B-VideoLinks
More VideoLinks >>>