Figure 3. Quantification of lymphatic contraction.
Vessel diameters are measured over time and from these measurements we calculate contraction amplitude, contraction frequency, ejection fraction and lymph output. The ejection fraction is a measure of the fraction of fluid that is driven out of the vessel with each contraction. This gives a measure of the strength of lymphatic contraction. The lymph output is a measure of the amount of lymph pumped per time normalized to a unit length of vessel.
