a labor-intensive process requiring
technologist expertise and physician
supervision … until now.
New technology could shift this paradigm.
Vios Works‡ is a 4D Flow CMR
exam that can be completed in as
little as 8 to 10 minutes—without
breath holds. Powered by Arterys™,
Vios Works provides quantitative
cardiac measurements including ;ow,
regurgitant fraction, stroke volume,
ventricular volumes, and ejection
fractions precisely and non-invasively.
The value of Cardiac MR (CMR) is
well-documented in the literature.
However, CMR has historically been a
complex and time-consuming exam to
perform, lasting over one hour while
subjecting the patient to multiple
breath holds and requiring precision
in the acquisition of imaging data with
little room for error when capturing
constantly moving anatomy. Despite
the value of CMR, these limitations
continue to complicate image acquisition.
Acquiring 2D CMR data to quantify
cardiac function and ;ow has been
Vios Works acquires anatomic and
velocity information for every location
in an entire imaged volume set and
at every time point in the cardiac
cycle. Speci;c localization is no longer
necessary, and the promise is that a
cardiovascular imager may not need
to be present at the scanner to aid the
Fairfax Radiological Associates (Fairfax,
VA) and Institut Mutualiste Montsouris
(Paris) are both early adopters of the
Vios Works technology and served as
clinical evaluation sites for GE Healthcare.
ViosWorks: A Paradigm Shift
in Cardiac MR Imaging
‡Not commercially available in all regions.
Figure 1. Vios Works image of a patient with shunted pulmonary venous return.
Image courtesy of Dr. Shreyas Vasanawala, Stanford University.