本文介绍一种新的肺灌注扫描剂——~(99)m锝-人血清白蛋白微球。动物实验发现其90％分布在肺部。兔、狗肺扫描结果,两肺界限分明,图影清楚。临床检查胸部疾病65例,图影清晰,病变部位易于识别。该扫描剂在肺部潴留时间较长,有充足的时间做多体位扫描。~(99)m锝半衰期较短,受检者遭受辐射剂量小。其能量中等,适用于闪烁扫描仪,尤其是γ照相机。 This article describes a new lung perfusion scintillator - ~ (99) m technetium-human serum albumin microspheres. Animal experiments found that 90% of the distribution in the lungs. Rabbit, dog lung scan results, clear distinction between the two lungs, clear figure. Clinical examination of 65 cases of chest disease, a clear picture, the lesion is easy to identify. The scan agent in the lungs retention time longer, have enough time to do more body scan. ~ (99) m technetium has a short half-life and the subject suffers from a small dose of radiation. Its medium energy, suitable for scintillation scanners, especially gamma cameras.