Abstract #0332
Fast 3D Free-breathing Abdominal Dynamic Contrast Enhanced MRI with High Spatiotemporal Resolution
Tao Zhang 1 , Joseph Cheng 1,2 , Marcus Alley 2 , Martin Uecker 3 , Michael Lustig 3 , John Pauly 1 , and Shreyas Vasanawala 2
1
Electrical Engineering, Stanford University,
Stanford, California, United States,
2
Radiology,
Stanford University, Stanford, California, United
States,
3
Electrical Engineering and Computer
Sciences, UC Berkeley, Berkeley, California, United
States
Dynamic Contrast Enhanced (DCE) MRI is commonly used to
detect and characterize lesions. A free-breathing DCE
acquisition has high scan efficiency, but image quality
can be compromised by respiratory motion. In this work,
a soft-gated locally low rank parallel imaging
reconstruction method is proposed for highly accelerated
3D free-breathing DCE MRI. The proposed method can
significantly reduce motion artifacts, and provide high
spatiotemporal resolution (approximately 1 mm
3
spatial
resolution and 4 s frame rate). The proposed method has
been validated on
in
vivo
datasets.
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