Robles A, Devor D, Wang H, Warren C
West J Med. 1987 Oct;147(4):432-4.
In comparing the diagnostic specificity and sensitivity of oral cholecystography with that of sonography in 479 patients in a community hospital, the oral cholecystogram, when used with a double dose of contrast agent, showed greater specificity (1.00) and sensitivity (0.99) than the sonogram (0.54 and 0.94, respectively). Because of lower cost, the oral cholecystogram should be used as the initial diagnostic study when cholelithiasis is suspected, unless specific contraindications exist.
在一家社区医院对479名患者进行的口服胆囊造影术与超声检查的诊断特异性和敏感性比较中，口服胆囊造影术在使用双倍剂量造影剂时，显示出比超声检查更高的特异性（1.00）和敏感性（0.99），而超声检查的特异性和敏感性分别为0.54和0.94。由于成本较低，当怀疑有胆结石时，除非存在特定的禁忌症，口服胆囊造影术应作为初始诊断研究方法。
