Hepatic Fat Quantification


Note: this is a very approximate method which likely underestimates hepatic fat; better methods may be available depending on equipment and technique.

The fat fraction should be used if both echoes are obtained after a single excitation

However, if the echoes are acquired separately, the fat percentage should be used, which makes the assumption that liver and spleen have identical T2* values.

Sirlin CB.  Invited Commentary on Image-based quantification of hepatic fat: methods and clinical applications.  Radiographics 2009; 29:1277-80

Disclaimer: The author makes no claims of the accuracy of the information contained herein; this information is for educational purposes only and is not a substitute for clinical judgment.