Transcutaneous observation of blood velocity in the ascending aorta in man.
D000054:Acceleration; D001011:Aorta / Q000502:physiology*; D001783:Blood Flow Velocity; D001794:Blood Pressure; D002302:Cardiac Output; D006801:Humans; D008433:Mathematics; D008722:Methods; D013997:Time Factors; D014159:Transducers; D014465:Ultrasonics