GE Healthcare StentViz - Manual (Page 3)

Stent enhancement techniques are based on motion
compensated temporal integration of the stent images.
The motion of the stent is classically inferred from
the motion of the highly contrasted balloon marker balls.
StentViz detects and tracks the guide-wire between the
markers and uses it to predict the deformation of the stent.
The elastic curve-based registration technique accounts better
for the guide-wire and stent deformation, thus avoiding
potential blurring linked to rigid registration.
Fast and easy to use, StentViz is fully automated to fit into
your interventional workflow. From a cine X-ray acquisition
an enhanced StentViz image is instantly generated at the
press of a button.
• A cardiac record run with approximately 30 frames is
acquired with the balloon and marker balls in place.
• Press the StentViz key in the exam room or in control room.
• The enhanced StentViz image appears within thirty seconds.
• If the enhanced stent image is non-optimal, you can
choose a frame and zoom to re-launch the processing.
• StentViz image is stored as a DICOM image for review
and archiving.
Elastic registration technique One touch activation
technology
Step A - Acquisition of several images of the same stent
Image M Image N Image O
StentViz
Elastic registration
Optimal registration:
based on marker balls
and the guide wire
(GE patent application).
Other technologies
Marker based
registration
Suboptimal registration:
based on marker only.
Step B - Registration of all stent images
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