Abstract #4295
Highly-Accelerated Real-time T 2 -weighted Imaging with Radial GRAPPA and Low-latency GPU Reconstruction
Di Xu 1 , Haris Saybasili 2 , Aravindan Kolandaivelu 3 , Henry Halperin 1,3 , Menekhem M. Zviman 3 , Mark A. Griswold 4,5 , Nicole Seiberlich 5 , and Daniel A. Herzka 1
1
Department of Biomedical Engineering, Johns
Hopkins School of Medicine, Baltimore, MD, United
States,
2
Siemens
Healthcare USA, Inc., Chicago, IL, United States,
3
Department
of Medicine, Division of Cardiology, Johns Hopkins
School of Medicine, Baltimore, MD, United States,
4
Department
of Radiology, Case Western Reserve University,
Cleveland, OH, United States,
5
Department
of Biomedical Engineering, Case Western Reserve
University, Cleveland, OH, United States
T
2
-weighted (T
2
W) images have
widespread application in MRI and are particularly
valued in interventional MRI. However, most existing T
2
W
imaging techniques are not applicable to interventional
imaging and are much slower than other competing imaging
modalities used in interventional guidance. We present T
2
-weighted
radial interrupted balanced SSFP (T
2
W-riSSFP),
a technique allows high speed real-time imaging as well
as edema visualization with significant T
2
contrast.
This technique was evaluated on phantoms, normal human
subjects, and animal model with acute myocardial
infarction and edema. T
2
W-riSSFP can be
applied to real-time interventional guidance where
heavily T
2
-weighted images are needed.
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