Difference between revisions of "Ultrasonography of the liver"

From radlines.org
Jump to navigation Jump to search
m (")
(+General screening and tumors)
Line 7: Line 7:
  
 
'''[[Ultrasonography of cirrhosis]]''' is done without IV contrast. In Swedish practice, it should be done within 2 months in suspected cirrhosis.<ref group="notes">{{NU Hospital Group}}</ref>
 
'''[[Ultrasonography of cirrhosis]]''' is done without IV contrast. In Swedish practice, it should be done within 2 months in suspected cirrhosis.<ref group="notes">{{NU Hospital Group}}</ref>
 +
 +
==General screening==
 +
A general screening of the liver includes:
 +
*'''Echogenicity''', where being more hyperechogenic than the kidneys indicates steatosis.
 +
*'''Focal changes''', mainly cysts or tumors. In case of liver tumors, see '''[[ultrasonography of liver tumors]]'''
 +
 +
Also, in suspected liver disease, it is often indicated to perform a {{general upper abdominal screening}}.
  
 
==Size==
 
==Size==
Line 20: Line 27:
 
<gallery>
 
<gallery>
 
File:Ascites ultrasound 2.JPG|thumb|[[Ultrasonography of cirrhosis|Ultrasonography of '''cirrhosis''']].<br>This image demonstrates irregular liver surface and ascites.
 
File:Ascites ultrasound 2.JPG|thumb|[[Ultrasonography of cirrhosis|Ultrasonography of '''cirrhosis''']].<br>This image demonstrates irregular liver surface and ascites.
 +
File:Contrast-enhanced ultrasound of encephaloid hepatocellular carcinoma.jpg|thumb|link=Ultrasonography of liver tumors|[[Ultrasonography of liver tumors|Ultrasonography of liver '''tumors''']]
 
</gallery>
 
</gallery>
 
 
{{Bottom}}
 
{{Bottom}}

Revision as of 20:30, 6 December 2018

Author: Mikael Häggström [notes 1]

Planning

Contrast-enhanced liver ultrasonography is often indicated in cases of focal liver changes, as well as follow-ups of metastases. In Swedish practice, it should be performed within 2 to 4 weeks, depending on the supiciousness of cancer.

Ultrasonography of cirrhosis is done without IV contrast. In Swedish practice, it should be done within 2 months in suspected cirrhosis.[notes 2]

General screening

A general screening of the liver includes:

  • Echogenicity, where being more hyperechogenic than the kidneys indicates steatosis.
  • Focal changes, mainly cysts or tumors. In case of liver tumors, see ultrasonography of liver tumors

Also, in suspected liver disease, it is often indicated to perform a general upper abdominal screening.

Size

File:Liver measurements on ultrasonography.jpg
Abdominal ultrasonography of the liver, as a sagittal plane through the midclavicular line, with some standard measurements.[1]
File:Liver size at the midclavicular line at 0 to 7 years.png
Normal craniocaudal dimension of the posterior surface of the right lobe of the liver at the midclavicular line at ages 0 to 7.[2]
  • Basic evaluation: Maximum dimension on a sagittal plane view through the midclavicular line, which is normally up to 18 cm in adults.[1]
  • More comprehensive, also including:
  • Cranio-caudal dimension, which is normally up to 15 cm in adults.[1]
  • Ventro-dorsal dimension (or depth), which is normally up to 13 cm.[1]
  • Relative size of caudate lobe: In the axial plane, the caudate lobe should normally have a cross-section of less than 0.55 of the rest of the liver.[1]

Diseases

Notes

  1. For a full list of contributors, see article history. Creators of images are attributed at the image description pages, seen by clicking on the images. See Radlines:Authorship for details.
  2. NU Hospital Group, Sweden

References

  1. 1.0 1.1 1.2 1.3 1.4 Christoph F. Dietrich, Carla Serra, Maciej Jedrzejczyk (2010-07-28). Ultrasound of the liver - EFSUMB – European Course Book. European federation of societies for ultrasound in medicine and biology (EFSUMB).
  2. Rocha, Silvia Maria Sucena da; Ferrer, Ana Paula Scoleze; Oliveira, Ilka Regina Souza de; Widman, Azzo; Chammas, Maria Cristina; Oliveira, Luiz Antonio Nunes de; Cerri, Giovanni Guido (2009). "Determinação do tamanho do fígado de crianças normais, entre 0 e 7 anos, por ultrassonografia ". Radiologia Brasileira 42 (1): 7–13. doi:10.1590/S0100-39842009000100004. ISSN 0100-3984.