目的　探讨胆囊造影CT对胆囊等或低密度结石、小息肉样病变的诊断价值。材料与方法　分析 3 0例由造影CT诊断并经手术病理证实的胆囊等或低密度结石 2 1例 ,小息肉样病变 9例。结果　常规CT对 15例等密度结石全部漏诊 ,6例低密度结石4例漏诊 ,9例小息肉样病变 6例漏诊 ,而造影CT对 3 0例全部确诊。结论　造影CT对胆囊等或低密度结石、小息肉样病变有很大的诊断价值 ,弥补了常规CT的不足。 Objective To investigate the diagnostic value of cholecystography in the diagnosis of gallbladder disease, low-density calculus and polypoid lesions. Materials and Methods: Twenty-one cases of gallbladder, low-density calculus and nine cases of polypoid lesion diagnosed by contrast-enhanced CT and confirmed by pathology were included in this study. Results Conventional CT did not diagnose 15 cases of iso-density calculus, 6 cases of low-density calculus were missed, 9 cases of polypous lesion were missed, and contrast CT was diagnosed in 30 cases. Conclusion CT angiography is of great diagnostic value for gallbladder and other low-density stones and small polyp-like lesions, to make up for the lack of conventional CT.