Non-alcoholic fatty liver disease ultrasound: Difference between revisions

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{{Non alcoholic fatty liver disease}}
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==Overview==
==Overview==


Ultrasound may be helpful in the diagnosis of complications of NAFLD, which include detection of fat percentage in the liver. Ultrasound is a qualitative test and should be considered as the reliable imaging test to diagnose NAFLD. Ultrasound is non- invasive, Inexpensive and no threat of radiation exposure to the patient. However, the accuracy of ultrasound is limited if the patient has hepatic fibrosis which Ultrasound cannot differentiate between hepatic fibrosis and steatosis<ref name="urlNonalcoholic Fatty Liver Disease: Diagnosis and Management - American Family Physician">{{cite web |url=http://www.aafp.org/afp/2013/0701/p35.html |title=Nonalcoholic Fatty Liver Disease: Diagnosis and Management - American Family Physician |format= |work= |accessdate=}}</ref>
[[Ultrasound]] may be helpful in the diagnosis of non-alcoholic fatty liver disease. Increased echogenicity and coarsened echotexture of the liver is the most prominent and diagnostic finding on an ultrasound in patients diagnosed non-alcoholic fatty liver disease.
 
==Ultrasound==
==Ultrasound==
*Ultrasound may be helpful in the diagnosis of NAFLD. And should be considered as the first line of imaging choice for NAFLD patients <ref name="urlNonalcoholic Fatty Liver Disease: Diagnosis and Management - American Family Physician">{{cite web |url=http://www.aafp.org/afp/2013/0701/p35.html |title=Nonalcoholic Fatty Liver Disease: Diagnosis and Management - American Family Physician |format= |work= |accessdate=}}</ref>
*Ultrasound is considered as the first line of imaging choice for NAFLD patients  
*Ultrasound have senstivity of 60-100 and specificity of
*Ultrasound have senstivity of 60-100 and 80-100 % of positive predictive value.
*Findings on an ultrasound suggestive of NAFLD include:
*Findings on an ultrasound suggestive of non-alcoholic fatty liver disease include:
**Detection of moderate to high amount of fat in the liver
**Moderate to high amount of fatty infiltration of liver which is reflected as increased echogenicity and coarsened echotexture of the liver.
**Ultrasonography gives fairly good accuracy to detect moderate-to-severe degree hepatic steatosis. <ref name="pmid28994271">{{cite journal |vauthors=Lee DH |title=Imaging evaluation of non-alcoholic fatty liver disease: focused on quantification |journal=Clin Mol Hepatol |volume= |issue= |pages= |year=2017 |pmid=28994271 |doi=10.3350/cmh.2017.0042 |url=}}</ref>
** If steato-hepatitis has progressed to cirrhosis, a nodular liver surface may be present in addition to other fibrotic changes.<ref name="pmid28994271">{{cite journal |vauthors=Lee DH |title=Imaging evaluation of non-alcoholic fatty liver disease: focused on quantification |journal=Clin Mol Hepatol |volume= |issue= |pages= |year=2017 |pmid=28994271 |doi=10.3350/cmh.2017.0042 |url=}}</ref>
*Ultrasound elastography is another kind of ultrasound that can give [[qualitative]] progression of the liver fibrosis.
*The only limitation of using an ultrasound is that it cannot differentiate between [[hepatic fibrosis]] and [[steatosis]].
==References==
==References==
{{reflist|2}}
{{reflist|2}}

Latest revision as of 03:24, 30 July 2018

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Manpreet Kaur, MD [2]

Overview

Ultrasound may be helpful in the diagnosis of non-alcoholic fatty liver disease. Increased echogenicity and coarsened echotexture of the liver is the most prominent and diagnostic finding on an ultrasound in patients diagnosed non-alcoholic fatty liver disease.

Ultrasound

  • Ultrasound is considered as the first line of imaging choice for NAFLD patients
  • Ultrasound have senstivity of 60-100 and 80-100 % of positive predictive value.
  • Findings on an ultrasound suggestive of non-alcoholic fatty liver disease include:
    • Moderate to high amount of fatty infiltration of liver which is reflected as increased echogenicity and coarsened echotexture of the liver.
    • If steato-hepatitis has progressed to cirrhosis, a nodular liver surface may be present in addition to other fibrotic changes.[1]
  • Ultrasound elastography is another kind of ultrasound that can give qualitative progression of the liver fibrosis.
  • The only limitation of using an ultrasound is that it cannot differentiate between hepatic fibrosis and steatosis.

References

  1. Lee DH (2017). "Imaging evaluation of non-alcoholic fatty liver disease: focused on quantification". Clin Mol Hepatol. doi:10.3350/cmh.2017.0042. PMID 28994271.

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