Abstract #0326

Free Breathing Dynamic Contrast Enhanced MR Imaging of the Hepatopancreatobiliary lesions with improved 3D Stack-of-Stars k-space trajectory

Takayuki Masui¹, Motoyuki Katayama¹, Yuji Iwadate², Naoyuki Takei², Mitsuharu Miyoshi², Masako Sasaki¹, Takahiro Yamada¹, Ty Cashen³, Sagar Mandava⁴, and Kang Wang⁵

¹Radiology, Seirei Hamamatsu General Hospital, Hamamatsu, Japan, ²Global MR Applications and Workflow, GE Healthcare, Hino, Japan, ³Global MR Applications and Workflow, GE Healthcare, Madison, WI, United States, ⁴GE Healthcare, Tucson, AZ, United States, ⁵GE Healthcare, Waukesha, WI, United States

The feasibility of dynamic Gd-contrast study for evaluation of hepatopancreatobiliary lesions under free breathing was demonstrated. Superb image quality with high temporal resolutions could be obtained using a stack-of-stars k-space trajectory with golden angle ordering a CG-SENSE algorithm that supports parallel imaging and soft-gating for accelerated motion robust imaging. Selective recognition of vasculatures and lesions in the liver and pancreas can be made with this technique, which may be equivalent to fast breath-hold dynamic contrast image in young and old aged population.

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