Lundström B, Rydh A, Wickman G
Acta Radiol Diagn (Stockh). 1976 May;17(3):353-60. doi: 10.1177/028418517601700312.
Model cholangiographic experiments were performed in which the relationship between contrast medium concentration, duct diameter, calculus size and tube potential was analysed. The same degree of diagnostic reliability was obtained by increasing the tube potential as by diluting the contrast medium. A tube potential of 100 to 110 kV and a contrast medium concentration of 45 per cent were found to give the best result if the background density of the film was held constant.
进行了胆管造影模型实验，分析了造影剂浓度、胆管直径、结石大小与管电压之间的关系。通过增加管电压与稀释造影剂获得了相同程度的诊断可靠性。如果胶片的背景密度保持恒定，发现管电压为100至110千伏、造影剂浓度为45%时效果最佳。
