• Portal vein with real-time, PW and colour Doppler for:
  
  • Size of vessel
  • Presence of thrombus
  • Direction of flow
  • Maximum velocity (Vmax) of flow prior to stent

• TIPS stent with real-time, PW and colour Doppler for:

• Vmax in stent (careful assessment of velocities throughout the stent is required
• Vmax in portal 1/3 of stent
• Evidence of narrowing of lumen (reduced lumen in real-time or colour, turbulent colour pattern)

• Hepatic vein with real-time, PW and colour Doppler for:
  
  • Increase velocity beyond stent
  • Presence of thrombus or narrowing of vein beyond stent

• IVC with real-time, PW and colour Doppler for:

• Normal flow patterns
• Presence of thrombus

• Portal vein prior to stent
• Long axis with lumenal diameter / clip store with colour Doppler
• Spectral trace with Vmax

TIPS Stent

• Long axis views low, mid and high / clip store with colour Doppler
• Spectral trace in portal 1/3 of stent with Vmax measured
• Spectral trace of the highest velocity found in the stent with Vmax measured
  

• Hepatic vein
• Long axis / clip store with colour Doppler
• Spectral trace with Vmax
• IVC
• Long axis / clip store with colour Doppler
• Spectral trace with Vmax