Pulse-echo quantitative ultrasound (QUS) is well established research field and commercial implementations exist

• Attenuation estimation is important for compensation of QUS parameters

• Speed of sound estimation is important for aberration corrections

• Many recent algorithms have been proposed

Objectives of the challenge:

• Identify the best algorithms to estimate attenuation coefficient

• Identify the best algorithms to estimate speed of sound
  

Data:

• RF data, full transmit-receive matrices

• From simulations

• From physical phantoms using Verasonics instruments

• With and without aberrators