The new Artis Q.zen angiography system from Siemens has proven itself in everyday clinical practice. The system has been in use since November 2012 at the Basel University Hospital in Switzerland where both patients and staff benefit from the low radiation dose that an entirely novel technology has made possible.
"My team spends about three to four hours a day in the Electrophysiology Laboratory (EP) in connection with about eight to ten operations. This is why reducing the dose is so important," says Prof. Stefan Osswald, head of the cardiology department. With Artis Q.zen, Siemens is demonstrating its innovative strength as part of the global "Agenda 2013" Sector initiative.
Studies show that on average one in four people suffer from atrial fibrillation, the most widespread form of cardiac arrhythmia, at some stage during their lives. A further increase can be expected as a result of demographic change. Electrophysiological studies and interventions can be used to examine and treat a large number of patients. This involves ablating tiny points in the myocardial tissue using an ablation catheter in order to return the heart to its correct rhythm. Depending on the level of complexity, this type of procedure can take two to three hours. Each misrouting of the electrical impulses that trigger cardiac arrhythmia, which is measured in milliseconds, must first be located and mapped using electrophysiology catheters. It is only at that point that the doctor can develop an individual treatment plan tailored to the patients' needs. Prof. Osswald has been working with Artis Q.zen since November 2012. "We can now manage with radiation doses that are up to 85 percent below usual values," he says. This benefits both patients and staff alike.
In addition to cardiac arrhythmia, there is another clinical picture in the field of cardiology that is on the rise, and is the most frequent cause of death in the industrialized nations: coronary heart disease. This involves narrowing and blockage of the arteries supplying blood to the heart muscle. In Europe alone, over 1.8 million people die of this chronic disease each year. Narrowings – known as stenoses – can be widened using balloon catheters to restore the flow of blood. Stents keep the constricted locations permanently open. During this procedure, known as percutaneous coronary intervention (PCI), the cardiologist has to position the stent with millimeter precision despite cardiac movement. Using Artis Q.zen, the cardiologist is supported by the advanced guidance of Clearstent Live. With Clearstent Live, stent enhancement takes place in real time. The software eliminates cardiac movement, allowing cardiologists to verify stent positioning relative to the cardiac anatomy or to previously deployed stents. The enhanced images are displayed side-by-side with the current live-image without any noticeable lag and while the operator can still move the balloon mounted stent. In interventions of this nature, Prof. Osswald has observed a clear reduction in dose compared to the previous model, up to 50 percent. "The main advantage is the massively better visualization of the stent and the respective vessel-section. Hence, additional images to decide whether the stent has been fully expanded are no longer necessary," says Prof. Osswald.
Introduced by Siemens during the Radiological Society of North America (RSNA) congress last year, the Artis Q.zen comes with two new advances making it possible to reduce the radiation dose while maintaining and improving the quality – a new x-ray tube and a new detector. The x-ray tube is the only one on the market exclusively equipped with "flat emitter" technology. The new tube permits the system to generate detailed images of moving objects and even the smallest vessels in a beating heart within a very short time at a maximum current of 1,000 milliamperes (mA). The new technology delivers a more richly detailed image for the subsequent treatment.
The new Artis Q.zen detector enables x-ray checks to be performed in the ultra-low dose range, i.e. 20 nanograys (nGy) or less. What is new and unique worldwide is the fact that the detector is based on crystalline rather than on amorphous silicon technology. This is a material of homogenous chemical structure used mainly in the solar industry. It ensures that the image signal is enhanced with substantially reduced electronic noise in the image. This means that the cardiologist can achieve the same image quality using a lower dose.
Follow us on Twitter: www.twitter.com/siemens_press
The Siemens Healthcare Sector is one of the world's largest suppliers to the healthcare industry and a trendsetter in medical imaging, laboratory diagnostics, medical information technology and hearing aids. Siemens offers its customers products and solutions for the entire range of patient care from a single source – from prevention and early detection to diagnosis, and on to treatment and aftercare. By optimizing clinical workflows for the most common diseases, Siemens also makes healthcare faster, better and more cost-effective. Siemens Healthcare employs some 51,000 employees worldwide and operates around the world. In fiscal year 2012 (to September 30), the Sector posted revenue of 13.6 billion euros and profit of 1.8 billion euros. For further information please visit: http://www.siemens.com/healthcare
The products/features (here mentioned) are not commercially available in all countries. Due to regulatory reasons their future availability cannot be guaranteed. Please contact your local Siemens organization for further details.
The statements by Siemens' customers described herein are based on results that were achieved in the customer's unique setting. Since there is no "typical" hospital and many variables exist (e.g., hospital size, case mix, level of IT adoption) there can be no guarantee that other customers will achieve the same results.
Reference Number: HIM201308020e
Ms. Kathrin Schmich
Tel: +49 (9131) 84-5337
Kathrin Schmich | Source: Siemens Healthcare
Further information: www.siemens.com/presse/esc2013
Further Reports about: Angiography system > Artis Q.zen > atrial fibrillation > Cardiac Arrhythmia > coronary heart disease > electrical impulse > electrophysiological examinations > financial sector > Healthcare > radiation dose
More articles from Medical Engineering:
Siemens develops new analog mammography system
02.12.2013 | Siemens AG
Researchers from Brown University and the University of Hawaii have found some mineralogical surprises in the Moon's largest impact crater.
Data from the Moon Mineralogy Mapper that flew aboard India's Chandrayaan-1 lunar orbiter shows a diverse mineralogy in the subsurface of the giant South Pole Aitken basin.
The differing mineral signatures could be reflective of the minerals dredged up at the time of the giant impact 4 billion years ago, ...
In power electronics systems bonded connections create the central electrical connections between adjoining surfaces.
The quality of these bonded connections is one of the main factors that determines the reliability and availability of drive systems in electric vehicles, and hence constitutes a major design challenge for German auto manufacturers aiming to electrify their vehicles.
Now the partners participating in the RoBE (Robust Bonds in ...
International team of scientists develops new feedback method for optimizing the laser pulse shapes used in the control of chemical reactions
In many ways, traditional chemical synthesis is similar to cooking. To alter the final product, you can change the ingredients or their ratio, change the method of mixing ingredients, or change the temperature or pressure of the environment of the ingredients.
Like an accomplished chef, chemists have become very skilled ...
A genetic defect protects mice from infection with influenza viruses
A new study published in the scientific journal PLOS Pathogens points out that mice lacking a protein called Tmprss2 are no longer affected by certain flu viruses.
The discovery was made by researchers from the Helmholtz Centre for Infection Research (HZI) in Braunschweig in collaboration with colleagues from Göttingen and ...
The Light: Global study gets underway with online user survey
Light has a fundamental impact on our sense of well-being and performance. In cooperation with Zumtobel, a supplier of lighting solutions, Fraunhofer IAO has launched a global user survey of lighting quality in offices. The objective is to identify the best lighting conditions for a variety of spaces and lighting ...
10.12.2013 | Physics and Astronomy
10.12.2013 | Agricultural and Forestry Science
10.12.2013 | Power and Electrical Engineering
10.12.2013 | Event News
05.12.2013 | Event News
04.12.2013 | Event News