作者: Alfredo L. Pauca , Michael F. O’Rourke , Neal D. Kon
关键词: Pressure measurement 、 Aortic pressure 、 Ventricular pressure 、 Ascending aorta 、 Radial artery 、 Internal medicine 、 Aortic Augmentation Index 、 Materials science 、 Anesthesia 、 Pulse pressure 、 Cardiology 、 Blood pressure
摘要: Pressure wave reflection in the upper limb causes amplification of the arterial pulse so that radial systolic and pulse pressures are greater than in the ascending aorta. Wave transmission properties in the upper limbs (in contrast to the descending aorta and lower limbs) change little with age, disease, and drug therapy in adult humans. Such consistency has led to use of a generalized transfer function to synthesize the ascending aortic pressure pulse from the radial pulse. Validity of this approach was tested for estimation of aortic …