基于测量的协议提高了儿童超声心动图评估肺动脉高压-右心室收缩压的评估者间一致性和准确性

2022-07-19 刘少飞 MedSci原创

评估了实施基于测量的协议对 IR 协议和儿童右心室 (RV) 收缩压报告准确性的影响。

近年来,随着超声技术的不断发展,三维超声心动图和心肌应变显像技术在心功能检查中的应用,使我们对于心功能的超声测量方法有了新的认识。超声心动图测量有望改善主观评估的评分者间一致性 (IR)。在这项研究中,我们评估了实施基于测量的协议对 IR 协议和儿童右心室 (RV) 收缩压报告准确性的影响。我们还评估了该报告协议对 IR 协议在报告 RV 扩张、肥大和收缩功能方面的影响。

研究方法:

五位超声心动图阅读者报告了他们对 40 个未识别超声心动图的 RV 收缩压、扩张、肥大和收缩功能的评估,他们使用各自的习惯方法,然后使用仅基于 RV 测量的商定方案。使用 kappa 统计评估 IR 协议。与通过心导管术获得的血流动力学数据相比,使用 McNemar 测试评估了 RV 收缩压等级的准确性。使用组内相关系数 (ICC) 和变异系数 (CoV) 评估 RV 测量的可靠性。

研究结果:

使用基于测量的协议后,IR 一致性和 RV 收缩压评估的准确性得到改善 [一致性:0.39(95% 置信区间:0.27,0.5)至 0.62(0.48,0.76)和准确性 18/40 至 29/40 p = 0.03]。RV 扩张的 IR 一致性提高 [0.36 (0.25,0.48) 至 0.63 (0.48,0.79)],而 RV 肥大 [0.29 (0.17,0.42) 至 0.35 (0.15,0.55)] 和 RV 收缩功能 [0.57 ( 0.45,0.69) 到 0.53 (0.41,0.66)] 没有改善。测量的可靠性很好 (ICC > 0.8),除了 RV 游离壁厚度 (ICC: 0.62, CoV: 24%) 和 RV 部分面积变化 (ICC: 0.47, CoV: 22%) 提出了缺乏的可能原因改善右室肥大和右室收缩功能的 IR 一致性。

研究结论:

使用 RV 测量代替主观评估的报告协议标准化提高了 IR 一致性和 RV 收缩压评估的准确性。可靠的测量结果,RV 收缩压和扩张,导致 IR 一致性的改善,而不可靠的测量结果,RV 肥大和收缩功能则没有。在设计临床方案以减少作为错误来源的 IR 分歧时,需要特别注意测量的可靠性和可靠性的异方差性。

 

参考文献:

Nawaytou H, Springston C, Lazar A, Keller S, Hogan W, Cresalia N, Peyvandi S, Cocalis M, Moon-Grady A, Brook M. A Measurement-Based Protocol Improves Inter-Rater Agreement And Accuracy of Right Ventricular Systolic Pressure Assessment by Echocardiography in Children: A Call for Quality Improvement. J Am Soc Echocardiogr. 2022 Jul 12:S0894-7317(22)00346-7. doi: 10.1016/j.echo.2022.06.014. Epub ahead of print. PMID: 35840083.

 

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    2023-04-20 zhanfl
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