A score-based method for quality control of fetal images at routine second-trimester ultrasound examination
A score-based method for quality control of fetal images at routine second-trimester ultrasound examination
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DOI：
10.1002/pd.2016
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发表时间：
2008-09-01
影响因子：
3
通讯作者：
Ville, Y.
中科院分区：
文献类型：
--
作者：
Salomon, L. J.;Winer, N.;Ville, Y.
目的建立和评价孕中期常规标准化胎儿超声图像基于Secore的质量控制的可行性和重复性。研究设计在法国，任何一次中期扫描至少要产生3个生物测量学和6个解剖学标准化超声平面。所有的解剖标准化超声图像，通常由一个训练有素的操作员在20到24周内获得，在一年的时间内前瞻性地存储。随后，随机选择了25项包含这些图像的检查。然后由两名审查员根据在既定标准基础上商定的预定义标准进行分析。这产生了高达32分的总分。结果一名训练有素的超声医师在一年的时间里进行了编号为1160的常规中期超声检查，在记录图像并将其存储在数据库中时，他并不知道后续的研究。在随机选取和分析的150张图像中，有27张(84%)和30张(94%)的标准调整后的kappa值>0.2，组内相关系数分别为0.86(0.75：0.96)和0.98(0.94：1)，评价者间和评价者内比较的平均得分差异(95%CI)分别为-0.44(-3.0：2.1)和-0.2：1.6。结论基于图像评分的质量控制策略是可行的，并具有良好的评价者间和评价者内重复性。此外，它还具有审计和质量控制的潜力。在培训过程中，这也可能是有用的。版权所有(C)2008 John Wiley&Sons，Ltd.
Objectives Our aim was to develop and evaluate the feasibility and reproducibility of secore-based quality control for routine standardized fetal ultrasound imaged obtained in the second trimester of pregnancy.Study Design In France, a minimum of three biometrical and six anatomical standardized ultrasound planes are to be produced with any mid-trimester scan. All anatomical standardized ultrasound images, routinely obtained by one trained operator at 20 to 24 weeks, were stored prospectively during a 1-year period. Twentyfive examinations containing these images were later randomly selected. These were then analyzed by two reviewers, according to predefined criteria agreed upon on the basis of established standards. This yielded a total score of up to 32 Points. Feasibility, inter- and intra-reviewer reproducibility were analyzed.Results Routine second-trimester ultrasound examinations numbering 1160 performed over a one year period by one trained sonographer unaware of the subsequent study at the time the images were recorded and stored in a database. Among the 150 images randomly selected and analyzed, adjusted kappa values were above 0.2 for 27 (84%) and 30 (94%) criteria, intra-class correlation was 0.86 (0.75:0.96) and 0.98 (0.94:1) and the mean difference (95% CI) in score was -0.44 (-3.0:2.1) and -0.2:1.6) for inter- and intra-reviewer comparisons respectively.Conclusion A quality control policy based on image scoring is feasible and allows for good inter- and intra-reviewer reproducibility. Besides its pontential for audit and quality control. this could also be useful duing the training process. Copyright (C) 2008 John Wiley & Sons, Ltd.