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目的：评价三种浓度碘水混悬液在支扩患者数字减影支气管造影中的应用效果。方法：４０例临床诊断为支扩的患者被随机分成三组，分别用三种不同浓度造影剂作数字减影支气管造影，观察其成像质量及患者的副反应。结果：２０％、４０％浓度组具有满意的支气管成像质量；２０％、１０％浓度组患者具有较小的副反应。结论：选择２０％碘水混悬液作为数字减影支气管造影是支扩患者较理想的检查方法
Objective: To evaluate the effect of three concentrations of iodine-water suspension on digital subtraction bronchography in patients with dilation and extension. Methods: Forty patients with clinically diagnosed as dilated branches were randomly divided into three groups. Three different concentrations of contrast medium were used for digital subtraction bronchography to observe the imaging quality and the side effects of the patients. RESULTS: The 20%, 40% concentration group had satisfactory bronchoscopic imaging quality; patients in the 20%, 10% concentration group had less adverse reactions. CONCLUSIONS: Choosing a 20% iodine-water suspension as a digital subtraction bronchography is the ideal test for patients with dilated branches