Inter-rater Reliability of Sonographic Measurements of聽the聽Inferior Vena Cava

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• 作者：Turandot Saul ; MD ; RDMS^&lowast ; ; ; Resa E. Lewiss ; MD ; RDMS^&lowast ; ; Alexis Langsfeld ; MD^&dagger ; ; Michael S. Radeos ; MD ; MPH^&Dagger ; ; Marina Del Rios ; MD ; MSc^§ ;
• 关键词：intravascular volume status ; inferior vena cava ; bedside ultrasound ; point of care ultrasound
• 刊名：Journal of Emergency Medicine
• 出版年：2012
• 期刊代码：156_07364679
• 类别：med
• 出版时间：May, 2012
• 卷：42
• 期：5
• 页码：600-605
• 文件大小：345 K

摘要

Background

Bedside ultrasound is emerging as a useful tool in the assessment of intravascular volume status by examining measurements of the inferior vena cava (IVC). Many previous studies do not fully describe their scanning protocol.

Objectives

The objective of this study was to evaluate which of three commonly reported IVC scanning methods demonstrates the best inter-rater reliability.

Methods

Three physicians visualized the IVC in three common views and utilized M-mode to measure the maximal and minimal diameter during quiet respiration. Pairwise correlation coefficients were determined using Pearson product-moment correlation.

Results

The most reliable pair of measurements (inspiratory and expiratory) was found to be using the anterior midaxillary line longitudinal view with a Kappa value for both at 0.692.

Conclusion

Imaging with the anterior midaxillary longitudinal approach using the liver as an acoustic window provides the best inter-rater reliability when measuring the IVC. Our findings demonstrate that IVC measurements differ based on anatomic location.