Fig. 2
From: A Systematic Review of Wave Speed and Wave Intensity Measures in the Human Carotid Arteries
Illustration of wave intensity (peaks) and wave energy (shaded areas). Blue; FCW Forward Compression Wave, Red; BCW Backward Compression Wave, Green; FEW Forward Decompression (Expansion) Wave. NB: the latter part of the diastolic period of the cycle has been omitted for clarity