Patent ID: 8249697
Filing Date: 2012-08-21
Classification: A61B

Abstract:
1. A system for determining a physical parameter of the cardiovascular system of a subject comprising: a. an illumination system configured to provide an electromagnetic radiation to a detection area to excite an indicator administrated to the cardiovascular system to fluoresce, and to provide said electromagnetic radiation to said detection area for a Doppler flowmetry measurement; b. a detection system configured to detect the intensity of the indicator fluorescence emerging from the detection area, and to detect the intensity and the frequency distribution of electromagnetic radiation reflected from the detection area; and c. a computing system configured to compute a parameter of the cardiovascular system by using the indicator fluorescence intensity, to compute a Doppler flowmetry parameter of the detection area by using the reflected electromagnetic radiation intensity and its frequency distribution, and to compensate the cardiovascular system computation for a variation of the blood content of the detection area by using the computed Doppler flowmetry parameter.