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Abstract #3586

Stretched type adiabatic pulse with flexible TSL setting for estimation of liver function

Tomoyuki Okuaki 1 , Yukihisa Takayama 2 , Akihiko Nishie 3 , Makoto Obara 4 , Tetsuo Ogino 4 , Hiroshi Honda 3 , and Marc Van Cauteren 1

1 Philips Healthcare APAC, Tokyo, Japan, 2 Department of Molecular Imaging and Diagnosis, Kyushu University, Graduate School of Medical Sciences, Fukuoka, Japan, 3 Graduate School of Medical Sciences, Department of clinical Radiology, Kyushu University, Fukuoka, Japan, 4 Philips Electronics Japan, Tokyo, Japan

Two stretched type adiabatic locking pulses were applied to obtain homogeneous spin locking with flexible TSL setting, and compared with block pulse locking. Visual evaluation was done to assess the homogeneity of the T1rho maps and T1rho values obtained by the three methods were measured. The visual evaluation of T1rho maps obtained by stretched type adiabatic pulses were scored higher and T1rho values obtained by stretched type adiabatic(HS8_5) was significantly different between normal and Child-Pugh BorC, normal and Child-Pugh A. The Stretched type adiabatic provided homogeneous and artifact free liver T1rho maps with flexible TSL setting at 3T.

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