A Study of Regional Pulmonary Gas Exchange Using Radiotracers |
Common terms and phrases
acquisition activity alveolar alveolar volume alveoli appear approximately assumed average beam binding blood flow breath hold calculated camera carbon monoxide chemical clearance coefficient compartment concentration constant count rates curve cycle decay described detector determined diffusing capacity diffusion discussed distribution dynamic effects employed energy equal Equation equilibrium expired foil four function gamma gas exchange gases gate given half-clearance half-life hemoglobin images increased inert inert gas initial inspired interface isotope krypton labeled limited liquid lower lung lung volume measured membrane method molecules obtained oxygen physiological plasma pressure production pulmonary capillary pulse quantity radioactive radiotracers ratio reaction reduced regional removal shown in Figure signal single solubility studies surface tension Table target technique Teflon tissues tracer transport tube unit values valve ventilation volume washout yields