title: [Preliminary reports of noninvasive accurate method to measure pulmonary vascular capacity in normal volunteers].
abstract: OBJECTIVE
  Because the traditional loop of breathing control and regulation effect on blood circulation, there was rare study of pulmonary vein capacity. We need a noninvasive and accurate pulmonary vascular capacity measurement and analysis method.
  
  
  METHODS
  Twelve normal volunteers were performed a total lung CT scan, image data analysis processing by computer software, the whole lungs from the apex to the base of lung with 40-50 layers by hand-cut, the connection between adjacent layers automatically by a computer simulation, the full pulmonary vascular (≥ 0.6 mm) were treated by high-accuracy three-dimensional imaging technology after removing the interference, and then calculate the whole lung and pulmonary vascular.
  
  
  RESULTS
  The whole lung of the 12 normal volunteers from the apex to the base of lung CT scan image layers was 530 ± 98 (range, 431-841). The total capacity of lung and pulmonary vascular blood was 3705 ± 857 (range, 2398-5383) ml, and the total volume of the pulmonary vascular blood was 125 ± 32 (range, 94-201) ml. The pulmonary vein vascular blood volume was 63 ± 16 (range, 47-100) ml.
  
  
  CONCLUSIONS
  The method of measuring the three-dimensional imaging of pulmonary vascular capacity by analyzing lung CT scan data is available and accurate.
authors.forename: Xing-guo
authors.initials: XG
authors.lastname: Sun
authors.forename: Song-shou
authors.initials: SS
authors.lastname: Mao
authors.forename: M J
authors.initials: MJ
authors.lastname: Budoff
authors.forename: W W
authors.initials: WW
authors.lastname: Stringer
authors.forename: Xian-sheng
authors.initials: XS
authors.lastname: Cheng
mesh_terms: D003198:Computer Simulation; D064368:Healthy Volunteers; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008168:Lung / Q000098:blood supply*; D014057:Tomography, X-Ray Computed