肺动脉DSA影像的质量控制

Quality Control for Images of Pulmonary DSA

目的探讨肺动脉DSA影像的图像质量控制方法,总结质量控制措施,提高影像质量。方法通过对88例肺动脉DSA影像进行主观评价分析,并进行统计,确定影响肺动脉DSA图像质量的因素。结果肺动脉DSA图像质量受多种因素影响,其图像优质率相对较低,这与患者的屏气动作与方式、摄影的滤过方式、图像采集时机和频率、导管头端位置及对比剂的浓度和速率总量等密切相关。结论要获得良好的肺动脉DSA影像,应从多方面综合考虑质量控制措施。

ObjectiveToexploretheimagequalityofpulmonaryDSA,andsummarizethequalitycontrolmeasures,further improving image quality.Methods Analysis of 88 patients with pulmonary DSA images was carried out by subjective evaluation and statistics,thus to determine the impact factors of pulmonary DSA image quality.Results Pulmonary DSA image quality is affected by many factors,images quality was relatively low,closely related with action and the way of the patient＇s breath-hold,photography filtration,the timing and frequency of the image acquisition,the catheter tip location and the concentration of the contrast agent and the rate of total.Conclusion To obtain a good pulmonary digital subtraction angiography images,quality control measures should be completely considered.