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.
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.
Authors: Deidre L Wyrick; Samuel D Smith; Jeffrey M Burford; Christopher J Swearingen; Melvin S Dassinger Journal: Pediatr Surg Int Date: 2015-10-03 Impact factor: 1.827
Authors: Brian P Lucas; Antonietta D'Addio; Jennifer Clark; Clay Block; Harold Manning; Brian Remillard; J C Leiter Journal: J Clin Ultrasound Date: 2017-05-08 Impact factor: 0.910
Authors: Erica Menegatti; Mirko Tessari; Sergio Gianesini; Maria Elena Vannini; Francesco Sisini; Paolo Zamboni Journal: Curr Neurovasc Res Date: 2014-05 Impact factor: 1.990
Authors: Kristian Borup Wemmelund; Viktor Kromann Ringgård; Simon Tilma Vistisen; Janus Adler Hyldebrandt; Erik Sloth; Peter Juhl-Olsen Journal: Intensive Care Med Exp Date: 2017-09-11