Abstract #3946
Ventricular-Function Assessment with Online Post-Processing of Real-time Free-Breathing Radial GRAPPA images
Haris Saybasili 1 , Gary McNeal 1 , Michaela Schmidt 2 , Peter Kellman 3 , Mark Griswold 4 , Michael Zenge 2 , and Nicole Seiberlich 5
1
Siemens Healthcare USA, Inc., Chicago,
Illinois, United States,
2
Siemens
AG Healthcare Sector, Erlangen, Germany,
3
National
Heart Lung and Blood Institute, National Institutes of
Health, Bethesda, Maryland, United States,
4
Radiology,
Case Western Reserve University, Cleveland, Ohio, United
States,
5
Biomedical Engineering, Case Western
Reserve University, Cleveland, Ohio, United States
Radial GRAPPA is well suited for real-time
free-breathing cardiac imaging due to its high
temporal/spatial resolution. However, the heart-rate
variations during real-time acquisitions cause
inconsistent number of phases per slice/heart beat.
Hence, an off-line post-processing step is often
required prior to cardiac function analysis. We
developed an online reconstruction module capable of
generating a predefined number of phases per slice/heart
beat by interpolating real-time images. This module was
integrated into radial GRAPPA reconstruction pipeline
without code modifications. Healthy volunteer data were
acquired and analyzed to compare cardiac function
parameters calculated from automatically processed
real-time images to the results from segmented cine
images.
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