 is used in over 1,700 sites in more than 90 countries around the world and can be found in 70% of the worlds 

Our highly-qualified global team offers support in multiple languages and time zones to accommodate all our partners.

We have an unwavering commitment to delivering excellence, and we constantly seek ways to enhance our services based on valuable customer feedback.

In 2023, our Customer Satisfaction score (CSAT) was 4.9 with a 

, indicating that 77% of our customers would happily recommend Circle to others.

Rest assured, we are committed to delivering an exceptional customer experience.

Circle is invaluable to our clinical practice. cvi42’s intuitive post-processing analysis for both CT and CMR studies, easiness to communicate findings, great customer service and constant improvements make it a very powerful tool for both clinical and research purposes.

Joao Cavalcante, MD Director

In a high-volume tertiary cardiac center, our goal is to deliver high-quality, accurate imaging reports within a reasonable turn-around time. Circle Cardiovascular Imaging provides seamless image post processing solutions across different scanning platforms for our fellows and consultants. Our partnership with Circle extends beyond the clinical service and CMR training. cvi42 is the selected application to support the many research studies managed by our CMR Research Core Facility.

Calvin Chin, MD PhD FESC FRCP

In a high-volume center with multiple acquisition sites like ours, it is great to have a user-friendly and robust software in which we can trust. cvi42 is all of this and runs perfectly on Mac. It has been a pleasure to testify the growth of Circle Cardiovascular Imaging, pairing side-by-side with the growth of our CMR community.

Nuno Bettencourt, MD, PhD, FESC, FACC, FSCMR

cvi42 is my primary solution to process all the CMR images; I am pleased about the constant support of Circle CVI, especially during the COVID-19 pandemic we were able to have access to Stand Alone versions that allowed us to work from home. This was a real game changer during a time so hard, mainly for the advanced clinical work that is made with our PhD students that are helping us in the clinical and research daily routine.

Pr Jean-Paul Vallée, MD, PhD 

We’ve really seen an explosion in our use of Circle’s CT package, particularly in the Structural Heart Disease space. The strength and flexibility of the workflow drives efficiency but the thoughtful, stepwise approach also ensures that data is evaluated in a meaningful way. In our setting with many new trainees and fellows, the simple usability facilitates our workflow enabling more people to be doing these historically very complicated and limiting image analyses.

Jonathan Leipsic, MD, FRCPC, FSCCT 

As soon as you use Circle’s software, you’ll notice the completeness of the tools. The software is comprehensive for simple, routine studies as well as for advanced, more complex research purposes. The multi-vendor and “pathology tagging” capabilities help enhance presentations, education, workshops and multi-centric reviewing of studies. The report tool is simple and allows a faster read time per patient. Circle’s strongest asset, however, is their great customer support - they have become the reference for CMR imaging today.

Arshid Azarine, MD, MS 

The capability of cvi42|Quantitative Perfusion fundamentally changes our practice two-fold:
First, it introduces absolute quantification of blood flow and replaces PET for that indication and second, it allows for an automated perfusion analysis. This is huge, as it does not only save time but also improves accuracy.
A milestone for CMR...

Matthias G. Friedrich, MD, FESC, FACC

We have been using cvi42 since the beta version of the product in 2008 and it has shaped the way we work in CMR. Despite many innovative and technological advancements over the last decade, the software kept its core simplicity that allows for a productive workflow. We are confident that cvi42 will continue to carry on its’ cutting edge reputation and deliver more value in our CMR exams.

Juliano L Fernandes, MD, PhD, MBA

I attended the Congenital Cardiovascular Magnetic Resonance SCMR Level 1 course in Dallas, Texas in April 2019. It was an incredible course which was so well planned and thought out. I was particularly impressed by the amount of support that Circle CVI provided for the course. All the Circle experts went beyond and beyond to help us to install the software and also provided helpful tutorials necessary for understanding the software. The software itself is very easy to understand and follow. Uploading the images to the software was made simple and navigation within the software was very user friendly. Circle software would cut down our reading times and post processing times tremendously. I am looking forward to obtain this software and start the congenital MRI program at our institution.

Pushpa Shivaram, MD

I have worked with Circle Cardiovascular Imaging for almost ten years - initially for research only. Because of its speed, accuracy and optimized workflows, we have been using it clinically for about four years now. Without cvi42 and report42 we would not be able to deliver our high volume CMR service with over 12 consultants and many more trainees. But what is best about Circle is the customer service and the drive for continuous improvements and innovation.

Steffen Petersen, MD, DPHIL, MPH

From trial to daily use our world class support and clinical team will guide and help you in achieving your objectives.

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“ Circle is invaluable to our clinical practice. cvi42’s intuitive post-processing analysis for both CT and CMR studies, easiness to communicate findings, great customer service and constant improvements make it a very powerful tool for both clinical and research purposes. ”

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