Noninvasive input impedance of the human systemic circulation.

Noninvasive Input Impedance of the Human Systemic Circulation To the Editor: The study of noninvasive aortic input impedance by Segers et al1 is a very important step in understanding age-related changes in humans and an advance on previous limited invasive studies conducted decades ago.2,3 One reason that these lapsed was the difficulty in accurately… CONTINUE READING