Abstract
Aim: This study aimed to verify the reliability of inferior vena cava (IVC) diameter visualization by recruiting nursing and
graduate students with no experience in echocardiographic scanning or education on self-monitoring echocardiography (SMEC) before watching the video material. Methods and Results: Participants visualized their IVC diameters after watching video material on SMEC. A skilled researcher, experienced in conducting the procedure, visualized the participants. IVCs under identical conditions. After blinding the visualized IVC images to the participants and researcher, the researcher measured the maximum and minimum IVC diameters and viewed and compared the IVC images to evaluate their IVC visualization and measurement success rate. Intraclass correlation coefficients (ICCs) were calculated, and Bland.Altman analysis was used to determine the presence or absence of addition and proportional errors. The IVC was recognized in the echocardiography images visualized by the participants and met the measurement requirements. The ICC (2,1) values were 0.984 and 0.981 for the maximum and minimum IVC diameters, respectively. Additive and proportional errors were not observed for either maximum or minimum IVC diameter. Conclusion: Our results suggest that nursing and graduate students can visualize the IVC with high reliability after watching video materials related to SMEC created in this study.
