The use of piezofilms for noninvasive measurements of blood pressure

  • W. Nitsche
Conference paper


Measuring time-dependent blood pressure in the human vascular system creates numerous possibilities for a quantitative and qualitative diagnosis of the functional state of the overall cardiovascular system (4). By examining the time course of blood pressure — shown in Fig. la for a typical pulse wave in the left ventricle and the aorta (6) — it is possible to determine the diastolic (p1) and systolic pressure (p2) and also to derive information about the state of the pulse for diagnostic purposes. This includes, for instance, information about the elasticity of the vessels, the peripheral resistance of the arterial system, the stroke volume, and pulse rate. An example of such diagnostic possibilities can be found in Fig. 1 b, which shows changes of the pulse rate in the case of arteriosclerosis, aortic stenosis, and aortic insufficiency based on measurements in the radial artery. Besides their usefulness in form analyses, pulse wave can, together with an electrocardiogram and a phonocardiogram, be taken for a time analysis, which can provide very detailed information about the overall hemodynamics (5).


Internal Pressure Aortic Stenosis Pulse Wave Radial Artery Aortic Insufficiency 
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Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG, Darmstadt 1990

Authors and Affiliations

  • W. Nitsche
    • 1
  1. 1.Institut für Luft- und RaumfahrtTechnische Universität BerlinGermany

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