Video 21.9 Left subclavicular approach in the sagittal plane showing mild isthmic narrowing in 7-year-old child
Left subclavicular approach in the sagittal plane showing mild isthmic narrowing in 7-year-old child. The coarctation shelf is opposite to the aortic ampula of a functionally closed arterial duct. Flow acceleration across the aortic isthmus is seen on color Doppler flow mapping.