Pre Examination requirements

  • Patient shall be fasting for 3 hours or more1,2
  • Patient shall be lying on the examination bed for at least 3 minutes before starting the examination
  • Operator shall be duly trained and certified by Echosens or its local representative. The present document is not intended to provide user training.
  • Ensure that the probes are calibrated

a jeun avant examen



Examination room set up

Examen lit


Probe selection criteria

  • Ensure that the correct probe is used corresponding to the patient’s body type:
    • To choose between M or XL probe on adults, follow the automatic probe selection tool displayed in real time, based on the Skin to Liver Capsule Distance (SCD), and not on patient’s BMI.
    • For children, probe selection criteria are based on thoracic perimeter (TP)
    • Probe selection algorithm is given in Figure 1 below

 Graphique sonde



Examination contraindications [FOR USA ONLY]

FibroScan is contraindicated on pregnant women and on patients with active implantable medical devices.



Examination reliability criteria

  • At least 10 measurements at the same spot shall be performed with one single probe
  • Liver stiffness IQR/Median ratio (%) shall remain ≤30% when final median stiffness result exceeds 7.1 kPa2


score élasticité US



1. Mederacke I, Wursthorn K, Kirschner J, Rifai K, Manns MP, Wedemeyer H, Bahr MJ. Food intake increases liver stiffness in patients with chronic or resolved hepatitis C virus infection. Liver International 2009;29:1500-1506.

2. Arena U, Lupsor Platon M, Stasi C, Moscarella S, Assarat A, Bedogni G, Piazzolla V, et al. Liver stiffness is influenced by a standardized meal in patients with chronic hepatitis C virus at different stages of fibrotic evolution. Hepatology 2013;58:65-72.

3. Berzigotti A, De Gottardi A, Vukotic R, Siramolpiwat S, Abraldes JG, Garcia-Pagan JC, Bosch J. Effect of meal ingestion on liver stiffness in patients with cirrhosis and portal hypertension. PLoS One 2013;8:e58742.

4. Boursier J, Zarski JP, de Ledinghen V, Rousselet MC, Sturm N, Lebail B, Fouchard-Hubert I, et al. Determination of reliability criteria for liver stiffness evaluation by transient elastography. Hepatology 2013;57:1182-1191.