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
  130670	Longitudinal Lagrangian Strain	Lagrangian strain parallel to the reference contour (i.e. in the longitudinal direction) calculated as: SL(t)=(L(t) -L0)/L0, where L(t) is the length at a given point t in time and L0 is the reference length at the reference time t0.Strain values are negative with shortening. Due to the common convention of using end-diastole as the t0 reference time, echocardiography strain values are typically negative.
  130674	Longitudinal Lagrangian Strain Rate	Rate of change of longitudinal strain over time.
  130673	Mechanical Dispersion	The standard deviation of the time to peak longitudinal strain value for different myocardial segments. Typically assessed over 18-segments of the left ventricle.
  130672	Time to Peak Longitudinal Lagrangian Strain	The time from the beginning of the interval to the time of the peak longitudinal Lagrangian strain.
  130671	Peak Longitudinal Lagrangian Strain	Peak value of longitudinal Lagrangian strain during an identified interval, such as systole or a full cardiac cycle.
  130678	Circumferential Lagrangian Strain Rate	Rate of change of circumferential Lagrangian strain over time.
  130677	Circumferential Lagrangian Strain	Lagrangian strain tangential to the reference contour, perpendicular to the longitudinal strain, with positive values in the counterclockwise direction when viewed from the apex.
  130676	Radial Lagrangian Strain Rate	Rate of change of radial Lagrangian strain over time.
  130675	Radial Lagrangian Strain	Lagrangian strain in the wall of a cavity perpendicular to the longitudinal strain and towards the center of the cavity.
  125334	Vena Contracta Width	The width of the vena contracta of a fluid flow.
  125333	Regurgitation Jet Width	A width of a regurgitation jet taken perpendicular to the primary flow.
  125332	Regurgitation Jet Area	A cross-sectional area of a regurgitation jet, taken perpendicular to the primary flow.
  125331	PISA Radius	The radius of the proximal isovelocity surface area (PISA) of fluid flow approaching an orifice. It is commonly used to evaluate cardiac valve regurgitation.
  125330	Peak Tissue Velocity	The peak velocity of some tissue over a defined period
  125329	Peak Blood Pressure	The peak pressure of blood over a defined period at a defined location.
  125328	Maximum Orifice Area	The maximum area of an orifice opening over a defined period.
  125327	Excursion Distance	The distance traversed by some tissue over a defined period.
  125326	Effective Orifice Area	The effective area of an orifice (such as the mitral valve orifice) during bloodflow through the orifice.
  125325	Dyssynchrony Index	The standard deviation over 12 left ventricle myocardial segments of the time to peak myocardial sustained systolic velocity of each segment.See Yu, et al., Circulation, 2002; 105: 438-445

• Include these codes as defined in http://loinc.org

  Code	Display
  20256-4	Mean Gradient [Pressure] by Doppler
  20354-7	Velocity Time Integral
  33878-0	Volume Flow Rate
  59090-1	Internal Dimension
  20247-3	Peak Gradient [Pressure]
  34141-2	Peak Instantaneous Flow Rate
  20217-6	Deceleration Time
  20168-1	Acceleration Time
  11726-7	Peak Systolic Blood Velocity
  59120-6	dP/dt by US
  59089-3	Thickness
  59132-1	Fractional Shortening
  59130-5	Alias Velocity
  20280-4	Pressure Half Time
  59093-5	Epicardial Area
  59099-2	Myocardial Performance Index (Tei)
  20352-1	Mean Blood Velocity

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

  Code	Display
  385673002	Interval
  251271006	Vascular Resistance
  118565006	Volume
  42798000	Area
  6797001	Mean Blood Pressure
  70822001	Cardiac Ejection Fraction
  410668003	Length
  75367002	Blood Pressure
  118538004	Mass
  399301000	Regurgitant Fraction
  131188004	Minor Axis
  1483009	Angle
  81827009	Diameter
  90096001	Stroke Volume