![]() ![]() Both, however, were sensitive measures of RV dysfunction and therefore are likely clinically relevant.ģ-dimensional right ventricular ejection fraction right ventricular strain transesophageal echocardiography.Ĭopyright © 2018 Elsevier Inc. ![]() The bias and limits of agreement for these left- and right-sided strain software suggest that these 2 measures of RV function cannot be used interchangeably. Intraoperative RV strain measurements using LV-specific strain software commonly available on the echocardiography machine (QLAB CMQ) correlate with offline RV strain measurements using RV-specific strain software (EchoInsight). The sensitivity and specificity for RV dysfunction for the offline RV-specific software were 89% (95% CI 65-99) and 73% (95% CI 54-88), respectively, for RV FWS and 94% (95% CI 73-100) and 30% (95% CI 15-49), respectively, for RV GLS. The sensitivity and specificity for RV dysfunction for the intraoperative LV-specific software were 94% (95% confidence interval 73-100) and 70% (95% CI 51-85), respectively, for RV FWS and 94% (95% CI 73-100) and 67% (95% CI 47-83), respectively, for RV GLS. Intraoperative RV strain measurements using LV-specific strain software correlated with offline RV strain measurements using the RV-specific strain software (FWS rho = 0.85 GLS rho = 0.81). Both types of strain measurements were compared to a reference standard of 3D RV EF. Spearman's correlation and Bland-Altman analyses were used to characterize the relationship between RV strain measurements. Three-dimensional images were then analyzed offline to detemine the 3D RV ejection fraction (3D RV EF) using TomTec 4D RV function (Unterschleissheim, Germany). Two dimensional images were then analyzed offline to determine the RV FWS and GLS using EchoInsight RV-specific strain software. Intraoperative 2D images were analyzed in real time for RV free wall strain (FWS) and global longitudinal strain (GLS) using QLAB chamber motion quantification (CMQ) LV strain software on the echocardiography machine. Two-dimensional (2D) and 3-dimensional (3D) images of the right ventricle were obtained. The study comprised 48 patients undergoing transesophageal echocardiography for cardiac or noncardiac surgery. Single tertiary level, university-affiliated hospital. Designed for the many different clinical environments in general imaging, point-of-care, and obstetrics and gynecology, the Compact 5000 series offers a feature-rich core and a. Prospective, nonrandomized, observational study. Philips Compact Ultrasound System 5000 series brings full functionality and quick, confident answers to you, wherever you are. To compare intraoperative right ventricular (RV) strain measurements made with left ventricular (LV) strain software commonly found on the echocardiography machine (Philips QLAB chamber motion quantification, version 10.7, Philips, Amsterdam, The Netherlands), with offline analysis using the dedicated RV strain software (EchoInsight, version 2., Epsilon Imaging, Ann Arbor, MI). ![]()
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