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CJAP ›› 2015, Vol. 31 ›› Issue (4): 337-340.doi: 10.12047/j.cjap.0115.2015.010

• ORIGINAL ARTICLE • Previous Articles     Next Articles

The correlation of the stroke volume with pulmonary venous volume and left atrial volume

SUN Xing-guo1,2, MAO Song-shou2, BUDOFF MJ2, STRINGER WW2, CHENG Xian-sheng1   

  1. 1. State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Research Center of Clinic Medicine for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China;
    2. Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center, University of California at Los Angeles, St. John's Cardiovascular Research Center, California 90502,USA
  • Received:2015-06-05 Revised:2015-07-05 Published:2021-11-12

Abstract: Objective: The same person's pulmonary venous blood volume, left atrial volume and stroke volume were measured by lung CT scans and cardiac CT angiography (CTA). Then their relationships were analyzed in order to investigate the mechanism of breathing control. Methods: As we described before, full pulmonary vascular (~0.6mm) volume was accurately calculated by three-dimensional imaging technology from lung CT scan; left atrial volume and stroke volume of left ventricle were calculated from the CTA data. Then the relationships among them were analyzed for estimation of the lung-artery time. Results: The total volume of lung and pulmonary vascular blood was 3486±783(2156-4418)ml, and the pulmonary vascular blood volume was 141±20(105-163)ml. The estimated pulmonary venous volume was 71±10(52-81)ml. Left atrial volume at the end diastolic was 97±39(53-165)ml,Stroke volume of left ventricle was 86±16(60-106)ml。Pulmonary venous volume and the left atrial volume were double of stroke volume(1.7-2.4). Conclusion: The estimated lung-artery time was three heart beat.

Key words: lung CT scan, pulmonary vascular tree, three-dimensional imaging, the total capacity of the pulmonary vascular, pulmonary vein blood volume, cardiac CTA, stroke volume, left atrial volume, heart three-dimensional imaging

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