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: Measurement of pulsatile flows and variable volumes by bolus injection of indicator in a model of the pulmonary circulation.
    Author: Zelter M, Polianski J, Douguet D, Sibille L, Mensch-Dechene J, Lockhart A.
    Journal: J Physiol (Paris); 1984; 79(1):22-8. PubMed ID: 6239918.
    Abstract:
    The reliability and accuracy of the bolus injection-dye dilution technique were assessed for a physiological range of frequencies (13-49 min-1) and stroke volumes (60-160 ml) on a glass model where flows and volumes varied as a preset function of time (n = 320). We found that the technique overestimates flow by about 8% with a 95% confidence interval of +/- 10% for one measurement. Mean transit times are accurate within a +/- 7% confidence interval for one measurement. In a time-dependent flow and volume system this technique measures the mean volume as related to time with fluctuations up to +/- 30% around the mean. Results are independent of time and site of injection. The double injection-single sampling technique gives results that are equivalent to those obtained by single injection and sampling of dye.
    [Abstract] [Full Text] [Related] [New Search]