Abstract #1538
Accelated non-contrast-enhanced MR portography with undersampled k-space using compressed sensing reconstruction
Hiroyoshi Isoda 1 , Koji Fujimoto 1 , Shigeki Arizono: 1 , Akihiro Furuta 1 , Takayuki Yamamoto 1 , Yasutaka Fushimi 1 , Aki Kido 1 , Kaori Togashi 1 , and Naotaka Sakashita 2
1
Kyoto University Graduate School of
Medicine, Kyoto, Kyoto, Japan,
2
Toshiba
Medical Systems Corporation MRI Systems Division,
Otawara, Tochigi, Japan
Shortening of the acquisition time is feasible using
compressed sensing (CS) which is a method of image
reconstruction from undersampled data. The aim of this
study was to compare and evaluate images of
non-contrast-enhanced MR portography with two different
methods, fully sampled kspace data and undersampled
k-space using CS. Shortening the acquisition time for
portal vein visualization was feasible without
deterioration of the image quality by CS method at
undersampling a factor of 3.7. It will facilitate using
non-contrast-enhanced MR porography with CS method in
clinical practice.
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