Volume 53, Issue 3 pp. 208-218
ORIGINAL ARTICLE

Early diagnosis of hepatic inflammation in Japanese nonalcoholic fatty liver disease patients using 3D MR elastography

Yasuyuki Komiyama

Yasuyuki Komiyama

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Utaroh Motosugi

Utaroh Motosugi

Department or Radiology, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Shinya Maekawa

Corresponding Author

Shinya Maekawa

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Correspondence

Shinya Maekawa, First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, 1110, Shimokato, Chuo, Yamanashi 409-3898, Japan.

Email: [email protected]

Search for more papers by this author
Leona Osawa

Leona Osawa

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Natsuko Nakakuki

Natsuko Nakakuki

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Hitomi Takada

Hitomi Takada

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Masaru Muraoka

Masaru Muraoka

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Yuichiro Suzuki

Yuichiro Suzuki

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Mitsuaki Sato

Mitsuaki Sato

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Shinichi Takano

Shinichi Takano

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Mitsuharu Fukasawa

Mitsuharu Fukasawa

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Tatsuya Yamaguchi

Tatsuya Yamaguchi

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Hiroshi Onishi

Hiroshi Onishi

Department or Radiology, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
Meng Yin

Meng Yin

Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA

Search for more papers by this author
Nobuyuki Enomoto

Nobuyuki Enomoto

First Department of Internal Medicine, Faculty of Medicine, University of Yamanashi, Chuo, Yamanashi, Japan

Search for more papers by this author
First published: 13 November 2022
Citations: 3

Abstract

Background

The damping ratio (DR) and the loss modulus (G″) obtained by 3D MR elastography complex modulus analysis has been reported recently to reflect early intrahepatic inflammation, and is expected to be a noninvasive biomarker of inflammation in nonalcoholic fatty liver disease (NAFLD). However, the role of the DR and the G″ in Japanese NAFLD patients remains unclear.

Methods

We enrolled 39 Japanese patients with NAFLD who underwent liver biopsy and 3D MR elastography within 1 month and analyzed the association between DR, G″, and histological activity.

Results

Regarding DR, no evident correlation was observed between the DR and histological activity (p = 0.14) when patients with all fibrosis stages were included. However, when patients were restricted up to stage F2 fibrosis, the association of the DR and inflammation became significant, the DR increasing with the degree of activity (p = 0.02). Among the constituents of fibrosis activity, ballooning correlated with the DR (p < 0.01) while lobular inflammation did not. Regarding G″, it was correlated with histological activity (p < 0.01), ballooning (p < 0.01), and lobular inflammation (p < 0.01) in patients with all fibrosis stages and in patients up to F2 fibrosis (p = 0.03 for activity and p = 0.04 for ballooning). The best cutoff value of DR for hepatitis activity in patients within the F2 stage was 0.094 (area under the receiver operating characteristic curve 0.775, 95% CI: 0.529–1.000) and G″ was 0.402 (area under the receiver operating characteristic curve 0.825, 95% CI: 0.628–1.000).

Conclusions

The DR and G″ reflected the histological activity in Japanese patients with NAFLD during the early stage, indicating these values for noninvasive diagnosis of inflammation in Japanese patients with NAFLD.

CONFLICTS OF INTEREST

The Mayo Clinic and Meng Yin have intellectual property rights and a financial interest in magnetic resonance elastography technology. Other authors declare no Conflict of Interests for this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.