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Comparison and optimization of b value combinations for diffusion-weighted imaging in discriminating hepatic fibrosis.

Introduction and objectives: Diffusion-weighted imaging (DWI) has shown potential in characterizing hepatic fibrosis. However, there are no widely accepted apparent diffusion coefficient (ADC) values for the b value combination. This study aims to determine the optimal high and low b values of DWI t...

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Published in:Abdominal Radiology Vol. 49; no. 4; pp. 1113 - 1122
Main Authors: Wang, Jiaoyan, Zhou, Xue, Yao, Mingrong, Tan, Wenli, Zhan, Songhua, Liu, Kun, Feng, Zhen, Yan, Huamei, Dai, Yongming, Yuan, Jie
Format: Journal Article
Published: Springer Nature Apr2024
Online Access:View this record in EBSCOhost
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      dt: Apr2024
      vid: 49
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      pub: Springer Nature
      place: New York, New York
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        10.1007/s00261-023-04159-7
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        atl: Comparison and optimization of b value combinations for diffusion-weighted imaging in discriminating hepatic fibrosis.
      aug:
        au:
          Wang, Jiaoyan
          Zhou, Xue
          Yao, Mingrong
          Tan, Wenli
          Zhan, Songhua
          Liu, Kun
          Feng, Zhen
          Yan, Huamei
          Dai, Yongming
          Yuan, Jie
        affil: https://ror.org/00z27jk27 Department of Radiology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, No. 528, Zhangheng Road, Pudong District, 201203, Shanghai, China
      sug:
      ab: Introduction and objectives: Diffusion-weighted imaging (DWI) has shown potential in characterizing hepatic fibrosis. However, there are no widely accepted apparent diffusion coefficient (ADC) values for the b value combination. This study aims to determine the optimal high and low b values of DWI to assess hepatic fibrosis in patients with chronic liver disease. Materials and methods: The prospective study included 81 patients with chronic liver disease and 21 healthy volunteers who underwent DWI, Magnetic resonance elastography (MRE), and liver biopsy. The ADC was calculated by twenty combinations of nine b values (0, 50, 100, 150, 200, 800, 1000, 1200, and 1500 s/mm2). Results: All ADC values of the healthy volunteers were significantly higher than those of the hepatic fibrosis group (all P < 0.01). With the progression of hepatic fibrosis, ADC values significantly decreased in b value combinations (100 and 1000 s/mm2, 150 and 1200 s/mm2, 200 and 800 s/mm2, and 200 and 1000 s/mm2). ADC values derived from b values of both 200 and 800 s/mm2 and 200 and 1000 s/mm2 were found to be more discriminative for differentiating the stages of hepatic fibrosis. An excellent correlation was between the ADC200–1000 value and MRE shear stiffness (r = − 0.750, P < 0.001). Conclusion: DWI offers an alternative to MRE as a useful imaging marker for detecting and staging hepatic fibrosis. Clinically, ADC values for b values ranging from 200–800 s/mm2 to 200–1000 s/mm2 are recommended for the assessment of hepatic fibrosis.
      pubtype: Academic Journal
      doctype: Journal Article
      ougenre: Article
    language: English
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