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Effects of Hepatic Steatosis on Non-Invasive Liver Fibrosis Measurements Between Hepatitis B and Other Etiologies

1
Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital, Linkou Medical Center, Tao-Yuan 333, Taiwan
2
Department of Public Health and Center of Biostatistics, Chang Gung University College of Medicine, Tao-Yuan 333, Taiwan
3
Division of Molecular and Genomic Medicine, National Health Research Institute, Taipei 115, Taiwan
4
Department of Medical imaging and Radiological Sciences, College of Medicine, Institute for Radiological Research, Chang Gung University, Taoyuan 333, Taiwan
5
Department of Internal Medicine, Chang Gung Memorial Hospital, Linkou Medical Center, Tao-Yuan 333, Taiwan
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(9), 1961; https://doi.org/10.3390/app9091961
Received: 3 April 2019 / Revised: 2 May 2019 / Accepted: 6 May 2019 / Published: 13 May 2019
(This article belongs to the Special Issue Ultrasound Technology for Clinical Diagnosis and Decisions Making)
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Abstract

Fibrosis-4 (FIB4), transient elastography (TE), and acoustic radiation force impulse (ARFI) are popular modalities to assess liver fibrosis. Their cutoff values for degrees of fibrosis vary between studies. The influence of hepatic steatosis on fibrosis measurements for different etiologies was evaluated. Data from a consecutive series of patients who received fibrosis measurement were included for the training group. An additional series with histology served as the validation group. A standardized protocol was performed for both TE and ARFI, mostly by a single technician. Patients with alcoholism, autoimmune disease, active inflammation, or who were receiving therapy were excluded. The training group included 215 patients and the validation group included 221. The correlation of liver stiffness between TE and ARFI was good (R2 linear = 0.798; p < 0.001). Different correlations between ARFI and TE were noted between high and low control attenuation parameter (CAP) values (cutoff: 290 dB/m), especially in the non-hepatitis B subgroups. Relatively lower FIB4 and TE values were seen in the high CAP versus low CAP in patients with histology-proven non-alcoholic fatty liver disease and chronic hepatitis C. FIB4 cutoff values were >25% lower among F2-F4 stages and the TE cutoff value for F4 was 8.5% lower in the high versus low CAP group. Such findings were not observed in chronic hepatitis B. Different fibrogenesis mechanisms between hepatitis B and non-B are discussed. We conclude that hepatic steatosis significantly impacts FIB4 and TE fibrosis measurements in non-hepatitis B-related liver diseases. Fibrosis grade should be interpreted with caution in severe steatosis. View Full-Text
Keywords: acoustic radiation force impulse imaging; transient elastography; liver fibrosis; liver steatosis; viral hepatitis acoustic radiation force impulse imaging; transient elastography; liver fibrosis; liver steatosis; viral hepatitis
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Chen, C.-J.; Tsay, P.-K.; Huang, S.-F.; Tsui, P.-H.; Yu, W.-T.; Hsu, T.-H.; Tai, J.; Tai, D.-I. Effects of Hepatic Steatosis on Non-Invasive Liver Fibrosis Measurements Between Hepatitis B and Other Etiologies. Appl. Sci. 2019, 9, 1961.

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