The technology spares patients the trauma of surgery and cuts total per-patient costs. As the research magazine Pictures of the Future reports in its latest issue, the procedure has to date been performed on over 150 patients in Europe with an average age of 78.
For tens of thousands of people each year it is the end of the line. If they are too frail to survive open heart surgery, many patients with aortic valve disease only have about two to three years to live. An ongoing stenosis of the valve resulting from calcification of the leaflets that allow oxygen-rich blood to flow from the left ventricle of the heart into the circulatory system, aortic valve disease affects about four percent of people 65 and older. Indeed, some 60,000 open heart aortic valve replacement operations are performed each year in Europe.
The new procedure is based on the use of Siemens’ DynaCT 3D cardiac angiographic imaging system. DynaCT provides exquisitely detailed images of the thorax. But during aortic valve implantation, what the surgeon wants to see in particular is the aortic root. With this in mind, Siemens researchers have developed a technology that automatically identifies the aortic valve area in a DynaCT data set and segments it—that is, eliminates everything that is not important, such as the rib cage, from the picture.
As the replacement valve approaches the area of interest wrapped in the tip of a catheter, unique software makes it possible to identify the optimum angulation of the new valve. This information is crucial in terms of correctly placing the device so that it covers the old valve without permitting leakage or covering the end points of the coronary arteries, which would cause an immediate heart attack. When the prosthesis is in precisely the right position, a balloon inside the catheter unfurls, thus opening the prosthesis and pressing it firmly against the aortic wall.
The technology results from a clinical cooperation between Siemens Healthcare, the Leipzig Heart Center, and the German Heart Center in Munich, as well as Siemens Corporate Research (SCR) in Princeton, New Jersey. It may also become available in the U.S. in the near future.
Disclaimer: On account of certain regional limitations of sales rights and service availability, Siemens cannot guarantee that the products included in this document are available through the Siemens sales organization worldwide. Availability and packaging may vary by country and are subject to change without prior notice. Some/All of the features and products described herein may not be available in the United States.
The information in this document contains general technical descriptions of specifications and options as well as standard and optional features which do not always have to be present in individual cases. Siemens reserves the right to modify the design, packaging, specifications, and options described herein without prior notice. Please contact your local Siemens sales representative for the most current information.
Dr. Norbert Aschenbrenner | Siemens ResearchNews
Gentle sensors for diagnosing brain disorders
29.09.2016 | King Abdullah University of Science and Technology
New imaging technique in Alzheimer’s disease - opens up possibilities for new drug development
28.09.2016 | Lund University
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.
Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
21.10.2016 | Health and Medicine
21.10.2016 | Information Technology
21.10.2016 | Materials Sciences