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Abstract #4168

Synthesized Diffusion Weighted Imaging in Liver: Comparison Between Conventional ADC and IVIM Fitting Models

Tetsuya Wakayama1, Utaroh Motosugi2, Shintaro Ichikawa2, Hiroyuki Morisaka2, Hiroyuki Kabasawa1

1Global Applied Science Laboratory, GE Healthcare, Hino, Tokyo, Japan; 2Radiology, University of Yamanashi, Chuo, Yamanashi, Japan

Synthesized diffusion weighted imaging (DWI) can provide the optimal diffusion weighting and would be helpful for clinical diagnosis in many regions. IVIM and the conventional ADC models were used to synthesize DWI of the liver and compared with DWI actually acquired. Both models could be used to synthesize DWI with high b-value range, however, the conventional ADC model resulted in overestimation of the signal in vessels in low b-value range. IVIM model can provide more accurate contrast than ADC model when synthesizing DWI with low b-value.