Attenuation coefficient (ATT) measurement for liver fat quantification in chronic liver disease
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- TAMAKI Nobuharu
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital
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- KUROSAKI Masayuki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital
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- YASUI Yutaka
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital
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- TSUCHIYA Kaoru
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital
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- IZUMI Namiki
- Department of Gastroenterology and Hepatology, Musashino Red Cross Hospital
Bibliographic Information
- Other Title
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- Attenuation coefficient (ATT)測定による肝脂肪化の定量評価
Abstract
<p>Liver fat is one of the main clinical features in chronic liver disease, and the number of fatty liver patients is increasing as the prevalence of obesity and metabolic syndrome increases globally. Noninvasive and quantitative assessment of liver fat content was made possible by recent technological advances. Attenuation coefficient (ATT) measurement is a noninvasive and quantitative liver fat measurement method used in clinical practice. The ATT value is significantly associated with histological steatosis grade. The diagnostic accuracy of ATT for histological steatosis grade is equivalent to controlled attenuation parameter (CAP), and ATT has a lower measurement failure rate than CAP because ATT can be measured on a B-mode image with the exact location of the region of interest. Furthermore, ATT measurement has high interobserver reproducibility. Since ATT measurement and other ultrasound-based modalities for liver fat quantification are easy to perform and inexpensive, these modalities are suitable for point-of-care and screening. Although emerging data suggest that quantitative liver fat content and its changes over time may be associated with disease progression in nonalcoholic fatty liver disease, the association between ATT and disease progression has not been evaluated yet. Therefore, further investigation and validation studies are necessary to strengthen the clinical significance of ATT measurement in chronic liver disease.</p>
Journal
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- Choonpa Igaku
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Choonpa Igaku 50 (3), 171-177, 2023
The Japan Society of Ultrasonics in Medicine
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Keywords
Details 詳細情報について
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- CRID
- 1390014591546385408
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- ISSN
- 18819311
- 13461176
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed