Conclusion: Quantitative parameters of inspiratory and expiratory lung HRCT, especially mean lung density and the density difference changed subsequently with aging in asymptomatic nonsmokers.
结论:无癥状非吸烟者随年龄变化,其吸呼气相hrct肺密度定量指标,尤其是呼气相平均肺密度和肺密度差,发生了相应的变化。