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Abstract #3146

Evaluating chronic hepatitis B-related liver fibrosis with a continuous-time random-walk diffusion model

Jing Zhang1, Zhiyang Lu1, Kaifan Yang1, Liyun Zheng2, Yongming Dai3, and Yikai Xu1
1Department of Medical Imaging Center, Nanfang Hospital, Southern Medical University, Guangzhou, China, 2Shenzhen United Imaging Research Institute of Innovative Medical Equipment, Shenzhen, China, 3MR Collaboration, Central Research Institute, United Imaging Healthcare, Shanghai, China

Synopsis

Keywords: Liver, Diffusion/other diffusion imaging techniques

Early characterization of liver fibrosis has great clinical significance as it allows monitoring of treatment response to antifibrotic agents in patients with chronic liver disease. Most recently, high b-values diffusion-weighted imaging (DWI) based on the continuous-time random-walk (CTRW) model has been introduced. Compared to the healthy control group, the mean D, α, and β values were significantly lower in the hepatic fibrosis group. Spatial diffusion heterogeneity β showed the best diagnostic performance. This non-invasive method has the potential to realize efficient evaluation and improve clinical treatment decision-making.

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Keywords