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Intra-and inter-observer variability of point of care ultrasound measurements to evaluate hemodynamic parameters in healthy volunteers

Blanca, Deborah ; Schwarz, Esther C. ; Olgers, Tycho Joan ; ter Avest, Ewoud ; Azizi, Nasim ; Bouma, Hjalmar R. ; Ter Maaten, Jan Cornelis

The ultrasound journal, 2023-05, Vol.15 (1), p.22-22, Article 22 [Periódico revisado por pares]

Cham: Springer International Publishing

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Título:
Intra-and inter-observer variability of point of care ultrasound measurements to evaluate hemodynamic parameters in healthy volunteers
Autor: Blanca, Deborah ; Schwarz, Esther C. ; Olgers, Tycho Joan ; ter Avest, Ewoud ; Azizi, Nasim ; Bouma, Hjalmar R. ; Ter Maaten, Jan Cornelis
Assuntos: Acute care ; Cardiac output ; Coefficient of variation ; Correlation coefficients ; Critical Care Medicine ; Diagnostic Radiology ; Diameters ; Emergency medical services ; Emergency Medicine ; Evaluation ; Hemodynamics ; Image quality ; Imaging ; Intensive ; Inter-observer reliability ; Interventional Radiology ; Intra-observer variability ; Mathematical analysis ; Medicine ; Medicine & Public Health ; Original ; Original Article ; Parameters ; Point of care testing ; Point of care ultrasound ; Radiology ; Repeatability ; Reproducibility ; Stroke volume ; Ultrasonic imaging ; Ultrasound
É parte de: The ultrasound journal, 2023-05, Vol.15 (1), p.22-22, Article 22
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Background Point-of-care ultrasound (POCUS) is a valuable tool for assessing the hemodynamic status of acute patients. Even though POCUS often uses a qualitative approach, quantitative measurements have potential advantages in evaluating hemodynamic status. Several quantitative ultrasound parameters can be used to assess the hemodynamic status and cardiac function. However, only limited data on the feasibility and reliability of the quantitative hemodynamic measurements in the point-of-care setting are available. This study investigated the intra- and inter-observer variability of PoCUS measurements of quantitative hemodynamic parameters in healthy volunteers. Methods In this prospective observational study, three sonographers performed three repeated measurements of eight different hemodynamic parameters in healthy subjects. An expert panel of two experienced sonographers evaluated the images’ quality. The repeatability (intra-observer variability) was determined by calculating the coefficient of variation (CV) between the separate measurements for each observer. The reproducibility (inter-observer variability) was assessed by determining the intra-class correlation coefficient (ICC). Results 32 subjects were included in this study, on whom, in total, 1502 images were obtained for analysis. All parameters were in a normal physiological range. Stroke volume (SV), cardiac output (CO), and inferior vena cava diameter (IVC-D) showed high repeatability (CV under 10%) and substantial reproducibility (ICC 0.61–0.80). The other parameters had only moderate repeatability and reproducibility. Conclusions We demonstrated good inter-observer reproducibility and good intra-observer repeatability for CO, SV and IVC-D taken in healthy subjects by emergency care physicians.
Editor: Cham: Springer International Publishing
Idioma: Inglês

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Intra-and inter-observer variability of point of care ultrasound measurements to evaluate hemodynamic parameters in healthy volunteers

Blanca, Deborah ; Schwarz, Esther C. ; Olgers, Tycho Joan ; ter Avest, Ewoud ; Azizi, Nasim ; Bouma, Hjalmar R. ; Ter Maaten, Jan Cornelis

Cham: Springer International Publishing

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