Fig. 1

Liver Imaging Reporting and Data System ultrasound visualisation scores. a Example of ultrasound visualisation score A: no or minimal limitations with complete visualisation of the diaphragm (arrowhead). b Example of ultrasound visualisation score B: moderate limitations. Shadowing and attenuation from heterogeneous liver parenchyma may obscure small masses and less than 50% visualisation of the liver (arrowhead). c Example of ultrasound visualisation score C: severe limitations. Marked attenuation in a patient with severe fatty liver leads to poor visualisation of the majority of the liver and diaphragm (arrowhead), with corresponding computed tomography image shown in (d)