Abstract #4163
10 minute isotropic MRI of the knee using accelerated 3D SPACE with incoherent undersampling and iterative reconstruction: Comparison with standard 2D TSE MRI
Jan Fritz 1 , Gaurav Thawait 1 , Shivani Ahlawat 1 , Shadpour Demehri 1 , Heiko Meyer 2 , Wesley Gilson 3 , and Esther Raithel 2
1
Russell H. Morgan Department of Radiology
and Radiological Science, Johns Hopkins University
School of Medicine, Baltimore, MD, United States,
2
Healthcare
Sector, Siemens AG, Erlangen, Bavaria, Germany,
3
Siemens
Healthcare USA, Baltimore, MD, United States
While high spatial resolution, isotropic 3D MRI of knee
can achieve similar diagnostic performance than standard
2D MRI, the acquisition of 3D data can be time-consuming
and may conflict with its practicability. K-space
undersampling and iterative reconstruction is a method
that can yield substantial acceleration of 3D data
acquisition. In this study, we show how the
implementation of k-space undersampling and iterative
reconstruction into a SPACE pulse sequence prototype
enables accelerated, comprehensive,
high-spatial-resolution 3D MRI of the knee in under 10
min with image qualities that rivals standard 2D TSE
images and potential to replace a more time-consuming 20
min standard 2D TSE MRI protocol.
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