These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Cardiac output and mean transit time using the phase plane of dye-dilution curves.
    Author: Fonseca-Costa A, Zin WA.
    Journal: Am J Physiol; 1979 Jun; 236(6):H798-801. PubMed ID: 375754.
    Abstract:
    Thirty-five indicator-dilution curves were recorded in dogs following the injection of indocyanine dye into the femoral vein, right atrium, pulmonary artery, or left ventricle. Sampling was from the femoral artery through a dichromatic cuvette densitometer. The exponential decay constant of each dye-dilution curve was calculated by a new method utilizing the phase plane and compared with the value obtained by the Stewart-Hamilton procedure. A high level of correlation was found between the two methods. Mean difference between areas was only 1.04 mg.1(-1).s (r = 0.999) and between mean transit times 0.02 s (r = 0.999). The phase plane method has the additional advantage of demonstrating the portion of exponential decay, enabling the elimination of indicator-dilution curves and abnormal downslopes.
    [Abstract] [Full Text] [Related] [New Search]