放射性核素可以通过各种方法应用于肺部疾病的诊断、局部肺功能测定、肺泡通透性和肺代谢的研究。现在最常用于临床的有肺灌注显像、肺通气显像和肺肿瘤显像等三种方法,本文简介这些方法及其主要的临床应用价值。一、肺灌注显像(Pulmonary Pcrfusion Imaging) Radionuclides can be applied to the diagnosis of pulmonary diseases, local pulmonary function tests, alveolar permeability and lung metabolism by various methods. Now the most commonly used in clinical lung perfusion imaging, lung ventilation imaging and lung tumor imaging and other three methods, this article describes these methods and its main clinical value. First, lung perfusion imaging (Pulmonary Pcrfusion Imaging)