fig10

Figure 10. Selected video frames from Doppler recordings from subcostal views of two different patients. In (A), pulse Doppler recording of the abdominal aorta demonstrates damping of the flow velocity indicating coarctation of the aorta. In (B), a similar Doppler recording of a normal child illustrates a pulsatile signal with a high magnitude and arterial variety of flow signal with a sharp rise. Reproduced from Ref.^[10].