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sts.components.contact.mr.placeholder Sebastian Webel
Mr. Sebastian Webel

Editor-in-Chief

Tel: +49 (89) 636-32221

Fax: +49 89 636-35292

Werner-von-Siemens-Straße 1
80333 Munich

Pictures of the Future
The Magazine for Research and Innovation
 

Medical Imaging

As unique as the patients

Belastung Kontrastmittel: Je kürzer ein Röntgen-Scan dauert, desto weniger Kontrastmittel muss zur Darstellung in das Gefäß injiziert werden. ARTIS pheno hat deshalb einen neuen Detektor, der extrem schnell hintereinander Bilder aufnimmt und so die Scanzeiten verkürzt.

Unlimited opportunities for physicians when treating patients, regardless of their health status, physical condition or restrictive pre-existing conditions. The ARTIS pheno robot-supported angiography system gives physicians access to the latest in imaging technology for maximum treatment support.

Siemens Healthineers has developed a new angiography system that enables minimally invasive surgery on patients with pre-existing conditions or whose physical make-up presents challenges for treatment. Physicians want to offer the best possible treatment for all patients, and an angiography device must offer them optimal support in dealing safely with all situations or complications that may arise. One use for angiography devices is to show the condition of blood vessels during catheter-based surgery.

The new ARTIS pheno system reduces patient exposure to the contrast agent by shortening scan times, and cuts down radiation exposure in the process. With a 95.5-centimeter inner diameter, the C-arm provides room for instrument use and makes it easier to position the patients. It also makes allowance for the increasing numbers of adipose patients. Moreover, ARTIS pheno is the first angiography system from Siemens with a hygienic design to help combat nosocomial infections.

Focus on multimorbid patients

Older individuals, in particular, tend to suffer from multiple conditions simultaneously. The technical expression is “multimorbid”. Patients with compromised renal function, for example: the contrast agent used in angiography to make the blood vessels visible is particularly problematic for these patients. The shorter an x-ray scan lasts, the less contrast agent has to be injected into the vessel to make it visible. That’s why the ARTIS pheno comes with a new detector that takes a sequence of images extremely quickly and cuts down the required scan time. The detector, known as zen40HDR, also permits very high-definition images (2,000 x 2,000 pixels). At this high resolution, four times higher than that offered by prior systems, physicians can clearly view the fine vascular structures, which helps make their decision-making processes easier.

Highly flexible: C-arm on the robot system

The robot-supported C-arm is a special feature of the ARTIS pheno. Siemens Healthineers developed and refined this technology for the earlier Artis zeego. Both of these systems are still unrivaled in this regard. Two things are always in short supply in the operating room: time and space. The robot offers the combination of flexible imaging and space at the patient table, since the C-arm can be retracted to its park position automatically in a matter of seconds. This means physicians can quickly refer to the imaging system, or check and document the results of treatment.

The engineers at Siemens Healthineers had to expand the movement control on the robot system quite substantially. Normally, robots work in areas like automobile manufacture, where they perform unchanging, rigidly defined actions in their own separate areas. In the operating room, on the other hand, the robot arm is controlled by a physician, and must be moved intuitively by a human who can treat the process as a side issue rather than a challenge. Operation of the C-arm had to be adapted to make it very easy to control the robot’s six axes of motion. The control system coordinates these movements relative to the patient table, to move quickly into the desired position and reliably avoid collisions. Physicians have the option of storing specific positions that are needed repeatedly, and the C-arm can then move to these automatically on command. Experts from Siemens’ global research department Corporate Technology have developed parts of the software that will calculate the best track for the arm to follow in real time. That saves time during treatment and provides answers quickly.

Hygienic design

Studies show that more than 30,000 patients* die in Germany every year just from infections picked up in the hospital. That means it’s vital to provide the best possible conditions in every part of the hospital from this perspective, even if there is no direct risk of transmission. Although angiography systems do not normally come into direct contact with the patient, Siemens Healthineers has developed a new hygienic design for the ARTIS pheno.

There are few gaps or seams on the surfaces of the device, which makes it very easy to clean. Transition points on the casing are structured to allow for the best possible access for cleaning, and the cables are routed almost entirely within the casing. A special coating helps to reduce the spread of microorganisms on the surface after cleaning. Siemens Healthineers has also developed a special set of operating instructions that is supplied with the device to enable proper cleaning and that the team has clear instructions.

Christine Rüth