Abstract #4793

Free-Breathing Gadoxetic Acid-Enhanced Hepatobiliary Phase Imaging Using Stack-of-Stars Radial Sampling and Compressed SENSE

Tetsuro Kaga¹, Yoshifumi Noda¹, Nobuyuki Kawai¹, Kimihiro Kajita², Yu Ueda³, Masatoshi Honda³, Fuminori Hyodo⁴, Hiroki Kato¹, and Masayuki Matsuo¹

¹Department of radiology, Gifu university, Gifu, Japan, ²Gifu university hospital, Gifu, Japan, ³Philips Japan, Tokyo, Japan, ⁴Institute for Advanced Study, Gifu university, Gifu, Japan

Synopsis

Keywords: Data Acquisition, Liver, Free breathing, Radial samplingThe gadoxetic acid-enhanced hepatobiliary phase imaging is an effective sequence for detecting hepatic lesions; however, degraded image quality is often observed due to poor breath holding. Free-breathing sequence using radial stack-of-stars acquisition (3D VANE) has been introduced and can provide diagnosable image quality. Recently, Compressed SENSE (CS), that is one of the acceleration techniques, has been applicable in 3D VANE. In this study, we evaluated the feasibility of 3D VANE with CS in hepatobiliary phase imaging. Our results showed that 3D VANE with CS at section thickness of 2 mm had almost comparable image quality as conventional breath-holding cartesian sampling.

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