Clin Mol Hepatol.  2017 Dec;23(4):290-301. 10.3350/cmh.2017.0042.

Imaging evaluation of non-alcoholic fatty liver disease: focused on quantification

Affiliations
  • 1Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea. dhlee.rad@gmail.com

Abstract

Non-alcoholic fatty liver disease (NAFLD) has been an emerging major health problem, and the most common cause of chronic liver disease in Western countries. Traditionally, liver biopsy has been gold standard method for quantification of hepatic steatosis. However, its invasive nature with potential complication as well as measurement variability are major problem. Thus, various imaging studies have been used for evaluation of hepatic steatosis. Ultrasonography provides fairly good accuracy to detect moderate-to-severe degree hepatic steatosis, but limited accuracy for mild steatosis. Operator-dependency and subjective/qualitative nature of examination are another major drawbacks of ultrasonography. Computed tomography can be considered as an unsuitable imaging modality for evaluation of NAFLD due to potential risk of radiation exposure and limited accuracy in detecting mild steatosis. Both magnetic resonance spectroscopy and magnetic resonance imaging using chemical shift technique provide highly accurate and reproducible diagnostic performance for evaluating NAFLD, and therefore, have been used in many clinical trials as a non-invasive reference of standard method.

Keyword

Quantitative assessment of Non-alcoholic fatty liver disease; Ultrasonography; Computed tomography; Magnetic resonance spectroscopy; Magnetic resonance imaging

MeSH Terms

Biopsy
Liver
Liver Diseases
Magnetic Resonance Imaging
Magnetic Resonance Spectroscopy
Methods
Non-alcoholic Fatty Liver Disease*
Radiation Exposure
Ultrasonography
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