Non-alcoholic fatty liver disease ultrasound: Difference between revisions

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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]].
[[Ultrasound]] may be helpful in the diagnosis of non-alcoholic fatty liver disease. [[Ultrasound]] is often considered as the first line of imaging choice to diagnose non-alcoholic fatty liver disease. Moderate to high amount of fatty infiltration of 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><ref name="urlNonalcoholic Fatty Liver Disease: Diagnosis and Management - American Family Physician2">{{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 <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><ref name="urlNonalcoholic Fatty Liver Disease: Diagnosis and Management - American Family Physician2">{{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 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 NAFLD include:
**Detection of moderate to high amount of fat in the liver
**Moderate to high amount of fatty infiltration of 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>
**Rarely 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>
* [[Ultrasound elastography]] (EUS), which is another kind of ultrasound can evaluate the progression of non-alcoholic fatty liver disease (NAFLD) which gives [[qualitative]] progression of the liver fibrosis. <ref name="pmid28800087">{{cite journal |vauthors=Di Martino M, Koryukova K, Bezzi M, Catalano C |title=Imaging Features of Non-Alcoholic Fatty Liver Disease in Children and Adolescents |journal=Children (Basel) |volume=4 |issue=8 |pages= |year=2017 |pmid=28800087 |pmc=5575595 |doi=10.3390/children4080073 |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}}

Revision as of 16:57, 22 December 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Vamsikrishna Gunnam M.B.B.S [2]

Overview

Ultrasound may be helpful in the diagnosis of non-alcoholic fatty liver disease. Ultrasound is often considered as the first line of imaging choice to diagnose non-alcoholic fatty liver disease. Moderate to high amount of fatty infiltration of 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 [1][2]
  • Ultrasound have senstivity of 60-100 and 80-100 % of positive predictive value.
  • Findings on an ultrasound suggestive of NAFLD include:
    • Moderate to high amount of fatty infiltration of liver.
    • Rarely moderate-to-severe degree hepatic steatosis. [3]
  • 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. "Nonalcoholic Fatty Liver Disease: Diagnosis and Management - American Family Physician".
  2. "Nonalcoholic Fatty Liver Disease: Diagnosis and Management - American Family Physician".
  3. 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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