Andersen J F, Madsen P E
Radiology. 1979 Nov;133(2):309-10. doi: 10.1148/133.2.309.
The diagnostic significance of a routine preliminary plain radiograph of the right upper abdominal quadrant prior to oral cholecystography was evaluated retrospectively. The plain radiograph was decisive in the diagnosis in only one case out of 1,022 consecutive cholecystographic examinations (0.1%) (95% confidence limits: 0.00-0.55%). The sensitivity of oral cholecystography, now approximately 90%, would drop by only 0.43% (95% confidence limits: 0.01-2.14%) if the routine plain radiograph were omitted.
对口服胆囊造影术前常规右上腹初步平片的诊断意义进行了回顾性评估。在连续1022次胆囊造影检查中，平片仅对1例诊断起决定性作用（0.1%）（95%置信区间：0.00 - 0.55%）。目前口服胆囊造影的敏感度约为90%，如果省略常规平片，其敏感度仅会下降0.43%（95%置信区间：0.01 - 2.14%）。
