Improving image quality and optimizing dose in every Artis system.

Neem contact op

Automatic Exposure Control – significant dose savings at constant image quality with five parameters
Corresponding to this video please find here the recently published study “Evaluation of automatic dose rate control for flat panel imaging using a spatial frequency domain figure of merit”

Reducing dose in interventional procedures is increasingly important for both patients and clinical staff. In many cases, however, image quality is the key to successful procedures.

CARE+CLEAR our comprehensive portfolio of image-quality and dose-saving tools, supports you in making confident decisions in diagnosis and treatment and increases the safety of both your patients and staff.

A Siemens exclusive: CARE+CLEAR is standard with every Artis angiography system. Unmatched since 1994.

Low-dose imaging is becoming a clinical reality

Dose reduction

As a leader in healthcare innovation, Siemens has a strong legacy in dose-reducing technologies. For many years we have been focused on reducing dose without compromising image quality and clinical outcomes. The philosophy behind our Combined Applications to Reduce Exposure (CARE) is simple: They are designed to help you deliver better care at the lowest reasonable dose.

CARE Benefits

  • Reduces patient and operator dose to a minimum
  • Provides dose monitoring during the procedure
  • Makes dose reporting easy and structured
  • The complete CARE package is standard with every Artis system
Based on the Last Image Hold (LIH), a graphical outline of the upcoming image is displayed on the monitor, allowing you to move the table or C-arm without any radiation. Because you can position patients without additional fluoroscopy, dose reduction is possible – making CAREposition an ideal choice for long procedures.
CAREvision enables variable fluoroscopic pulse rates ranging from 30 p/s to only 0.5 p/s, which can considerably reduce radiation exposure for patients and staff. When using 7.5 p/s instead of 30 p/s, for example, dose saving of up to 75% is possible – without losing image quality.
During digital acquisition or fluoroscopy, the variable filtration is set automatically according to the patient thickness and the angulation of the C-arm. By adjusting the filter size with CAREfilter, you can achieve up to 50% entrance dose reduction** – with minimal impact on image contrast.
Using the Last Image Hold as a reference, CAREprofile enables radiation-free collimator adjustment and semitransparent filter position setting. As a result, you can achieve dose savings.
low-dose syngo DynaCT
With low-dose syngo DynaCT, you can perform 3D imaging at the lowest possible dose during treatment ‒ which is especially important for radiosensitive patients like children. You obtain excellent imaging results at only 0.1 mSv.
Low-dose acquisition
Low-dose acquisition provides excellent image quality with a dose reduction of up to 67% in comparison to normal acquisition protocols. One acquisition pedal of the footswitch can be configured as a low-dose acquisition pedal.
CAREwatch displays the dose area product and air kerma rate or air kerma* at the interventional reference point on the live display in the examination and control room.
CAREguard provides an effective way to control the patient's accumulated air kerma*. Warnings are given on the live display monitor and touchscreen if the air kerma** exceeds one of the three predefined thresholds.
CAREmonitor shows the accumulated peak air kerma* according to the current projection in the form of a fill indicator on the live monitor. When your predefined threshold is reached the system warns you and you can consider another C-arm angulation.
At the end of each procedure step, CAREreport automatically creates a DICOM Dose Structured Report and transfers the dose values directly to your Hospital Information System. This information supports you in optimizing dose management for patients and procedures.
CARE Analytics
CARE Analytics presents the information of DICOM Structured Dose Reports in a table format for further analysis. So you can compare, for example, dose given during different examinations and the dose a patient has received on different imaging systems – even in other hospitals. This may result in dose savings.

Image Quality

Whether your patients are tall or short, obese or slender – you need to see. And in order to see, you need optimal image quality that helps you make the right decision for the patient. Our comprehensive range of CLEAR applications automatically enhances image quality and thus helps increase certainty during interventions without increasing the dose.

CLEAR Benefits

  • Achieves optimized image quality
  • Applies comprehensive image processing
  • Customizes the image display to preferences
  • The CLEAR package is standard with every Artis system
With CLEARpulse and the use of an optimized X-ray spectrum, the pulse length can be shortened by 43 percent. This not only reduces dosage for the patient but also improves image quality and sharpness.*
Using the unique histogram analysis, CLEARcontrol correctly exposes the entire image. By automatically enhancing the brightness, contrast and spatial resolution throughout the entire image, it provides better vessel visibility near the diaphragm.
Achieving best possible image quality in Roadmap is crucial during complex interventions. CLEARmap enables enhanced image quality and functionality with less system interactions. Get more out of your system by simplifying your workflow, while saving dose and contrast.
Using a unique dose-adaptive algorithm, CLEARview reduces the noise in low-dose images. It splits a raw image into its parts and removes the noise with multilevel decomposition. Then the image is reconstructed – and the result is a sharper image.
The algorithm of CLEARvessel works automatically in the background in real time to enhance the visibility of vessel edges. For each pixel, the system decides whether it’s part of the background or the vessel – and increases or decreases the contrast to smooth the image.
Based on a unique algorithm, CLEARmotion automatically detects fine structures and compensates for motion artifacts. This means optimal visualization of small vessels, fine structures, and guidewires in every heartbeat.
Patient motion leads to decreased image quality. CLEARmatch keeps the live image while pixel-shifting the mask image in real-time to provide consistent image quality during Roadmap. Get sharper images and enhance your treatment even in challenging situations.
With CLEARchoice, you can customize image quality to your individual preferences, whether you like smooth images, more contrast or less noise. Simply choose the image quality you want – independent of patient and dose.

Scientific Publications


Evaluation of automatic dose rate control for flat panel imaging using a spatial frequency domain figure of merit
M Dehairs, H Bosmans, W Desmet and N W Marshall
Link to Publication



Effectiveness of Low Rate Fluoroscopy at Reducing Operator and Patient Radiation Dose During Transradial Coronary Angiography and Interventions (2014, Artis dFc)
Eltigani Abdelaal, MD, Guillaume Plourde, MS, Jimmy MacHaalany, MD, Jean Arsenault, Eng, MScA, Goran Rimac, MS, Jean-Pierre Déry, MD, Gérald Barbeau, MD, Eric Larose, MD, Robert De Larochellière, MD, Can M. Nguyen, MD, Ricardo Allende, MD, Henrique Ribeiro, MD, Olivier Costerousse, PhD, Rosaire Mongrain, Eng, PhD, Olivier F. Bertrand, MD, PhD
Link to Publication


Relationship of Beam Angulation and Radiation Exposure in the Cardiac Catheterization Laboratory (2014, Artis zee)
Shikhar Agarwal, MD, MPH, Akhil Parashar, MD, Navkaranbir Singh Bajaj, MD, Imran Khan, MD, Imran Ahmad, MD, Fredrick A. Heupler Jr., MD, Matthew Bunte, MD, Dhruv K. Modi, MD, E. Murat Tuzcu, MD, Samir R. Kapadia, MD
Link to Publication


Influence of flat-panel fluoroscopic equipment variables on cardiac radiation doses. (2007, Axiom Artis dBC)
Nickoloff EL, Lu ZF, Dutta A, So J, Balter S, Moses J
Link to Publication


Radiation dose reduction in the invasive cardiovascular laboratory: implementing a culture and philosophy of radiation safety. (2012, AXIOM Artis 60%, Philips Integris 40%)
Fetterly KA, Mathew V, Lennon R, Bell MR, Holmes DR Jr, Rihal CS
Link to Publication


Measures to Reduce Radiation in a Modern Cardiac Catheterization Laboratory (2014, Artis zee)
Shikhar Agarwal, MD, MPH, Akhil Parashar, MD, Stephen G. Ellis, MD, Frederick A. Heupler Jr, MD, Evan Lau, MD, E. Murat Tuzcu, MD and Samir R. Kapadia, MD
Link to Publication


Efficacy of a Minicourse in Radiation-Reducing Techniques in Invasive Cardiology
A Multicenter Field Study (2014, Artis zee)

Eberhard Kuon, MD,* Kerstin Weitmann, MSC,y Wolfgang Hoffmann, MD,y Marcus Dörr, MD,z Thorsten Reffelmann, MD,z Astrid Hummel, MD,z Alexander Riad, MD,z Mathias C. Busch, MD,z Klaus Empen, MD,z Stephan B. Felix, MDz
Link to Publication


Latest-generation catheterization systems enable invasive submillisievert coronary angiography (2013. Artis zee)
E. Kuon, K. Weitmann, A. Hummel, M. Dörr, T. Reffelmann, A. Riad, M.C. Busch, S.B. Felix, W. Hoffmann, K. Empen
Link to Publication


ECG-gated coronary angiography enables submillisievert imaging in invasive cardiology (2014)
Kuon E, Felix SB, Weitmann K, Büchner I, Hummel A, Dörr M, Reffelmann T, Riad A, Busch MC, Empen K
Link to Publication


Effective radiation dosage of three-dimensional rotational angiography in children (Artis zee, 2014)
Marjolein Peters , Gregor Krings, Michel Koster, Mirella Molenschot, Mathhias W. Freund , and Johannes M.P.J. Breur
Link to publication

Radiation dose reduction capabilities of a next generation pediatric imaging system (Artis Q.zen)
Luke Lamers, Martine Moran, Jenna Smith, John Hokanson
Link to publication 0.3 MB



Practical ways to reduce radiation dose for patients and staff during device implantations and electrophysiological procedures (2014, AXIOM Artis)
Hein Heidbuchel, Fred H.M. Wittkampf, Eliseo Vano, Sabine Ernst, Richard Schilling, Eugenio Picano and Lluis Mont
Link to Publication 1.4 MB

Interventional Radiology


Radiation dose reduction in fluoroscopic procedures: left varicocele embolization as a model (Artis zee, 2014)
Anthony G. Verstandig, Bashar Shamieh, Vladimir Shraibman & David Raveh
Link to publication

Uterine Fibroid Embolization (UFE) and Radiation Exposure in the year 2015: The potential for dose-reduction applying the new Siemens Artis Q technology. (Artis Q, 2015)

C. M. Sommer, M. Klapp-Oliger, A. Hatopp, S. Erpenbach, K. Thomas, P. Kurz, G. M. Richter
Link to Poster


Reference Levels for Patient Radiation Doses in Interventional Radiology:
Proposed Initial Values for U.S. Practice (2009)

Miller DL1, Kwon D, Bonavia GH
Link to publication

Interventional Neuroradiology


O-014 significant acquisition dose reduction maintains diagnostic quality of biplane cerebral digital subtraction angiography. (Artis zee, 2014)
Honarmand A, Shaibani A, Hurley M, Patel B, Daruwalla V, Ansari S

Link to publication


Patient radiation dose in diagnostic and interventional procedures for intracranial aneurysms: experience at a single center. (Artis zee, 2014)
Chun CW, Kim BS, Lee CH, Ihn YK, Shin YS

Link to publication