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肺脏放射性核素显像能够提供肺部血管及支气管状态的资料。近年来应用闪烁照像机及电子计算机数据处理装置,使核素显像法能够反映出血流及通气等功能状态。目前它已成为肺部疾病的重要的辅助诊断方法。对于肺部肿瘤的诊断,在常规肺显影的基础上再用肿瘤阳性显影,可提高诊断阳性率及确定病变性质的能力。肺显像的基本方法和常用示踪剂灌注显像肺部有丰富的毛细血管,直径在7～9微米。从体静脉注入20～70微米大小的放射性颗粒,随血流进入肺循环的这些颗粒,可暂时
Pulmonary radionuclide imaging can provide information on the status of the lungs and bronchi in the lungs. In recent years, the application of scintillation cameras and computer data processing devices, nuclide imaging method can reflect the blood flow and ventilation and other functional status. It has now become an important diagnostic aid for lung disease. For the diagnosis of lung tumors, tumor-positive imaging based on conventional lung imaging can increase the diagnostic positive rate and the ability to determine the nature of the lesion. The basic method of lung imaging and tracer perfusion imaging commonly used in the lungs are rich in capillaries, a diameter of 7 ~ 9 microns. Injecting radioactive particles of 20 to 70 microns in size from the body vein, temporarily entering the pulmonary circulation with the bloodstream