This value set includes codes based on the following rules:

• Include these codes as defined in http://dicom.nema.org/resources/ontology/DCM

  Code	Display	Definition
  110830	Elasticity	Scalar value related to the elastic properties of the tissue.
  130612	Shear Wave Dispersion Slope	The rate at which shear wave speed is attenuated with changes in the frequency of the shear wave. The dispersion slope is correlated with both the elasticity and the viscosity of the substance or tissue.
  130611	Shear Wave Speed	The velocity at which a shear-wave propagates through a substance or tissue. The shear wave speed (SWS) is correlated with the elasticity of the substance or tissue.
  130613	ROI Depth	Distance from the ultrasound probe surface to the geometric center of the ROI.

• Include these codes as defined in http://snomed.info/sct

  Code	Display
  131184002	Area of defined region