[Age dynamics and correlation of pulmonary trunk and pulmonary artery parameters]

In 70 cadavers of the persons at the age of 15-92 external and internal diameters and radiuses, wall thickness, cross section area of the pulmonary stem and the left pulmonary arteries were measured. Increase of all the parameters with age was stated. For each size regressing equations were introduced. By means of dispersion analysis the effect of the age factor on the diameters and thickness of the vessel walls was determined. Radius/cross section relations of the pulmonary stem and those of both pulmonary arteries were studied. Indices of the relative vessel wall thickness were calculated and their comparison with the arteries of the systemic circulation was done.