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Measurement of cardiac output and blood volume by non-invasive detection of indicator dilution

  • US 20040215093A1
  • Filed: 05/17/2004
  • Published: 10/28/2004
  • Est. Priority Date: 05/22/2001
  • Status: Active Grant
First Claim
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1. A method of measuring in absolute physical units at least one parameter of the cardiovascular system of a subject comprising:

  • administering to the cardiovascular system of a subject a detectable amount of at least one indicator;

    applying a first wavelength of light for exciting the indicator within the cardiovascular system and causing the indicator to emit a second wavelength of light, measuring the intensity of the second wavelength of light emitted from the indicator in the circulatory system using at least one photodetector proximately located to a detection area of the subject;

    determining the magnitude of the at least one parameter of the cardiovascular system in absolute physical units based on the measured intensity of the second wavelength of light.

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