Ultrasonography of the liver
Ultrasonography of the liver is a type of ultrasonography of the abdomen.
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.
In abnormal liver function tests without pain, a combined ultrasonography of the biliary tract and liver is indicated. In Swedish practice, it should be done within 4 to 8 weeks.[notes 2] If concurrent pain, consider ultrasonography of gallstones.
A general screening of the liver includes:
- Echogenicity, where being more hyperechogenic than the kidneys indicates steatosis. If found, see Ultrasonography of steatosis
- Focal changes, mainly cysts or tumors. In case of a suspected tumor, see ultrasonography of liver tumors
Also, in suspected liver disease, it is often indicated to perform a general upper abdominal screening.
- Basic evaluation:
- Maximum dimension on a sagittal plane view through the midclavicular line, which is normally up to 18 cm in adults.
- More comprehensive, also including:
Ultrasonography of cirrhosis.
This image demonstrates irregular liver surface and ascites.
- 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).
- 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.