Right ventricular long axis strain

• Verfasst von: Arenja, Nisha [VerfasserIn]
• Verfasst von: Riffel, Johannes [VerfasserIn]
• Verfasst von: Djiokou, Charly N. [VerfasserIn]
• Verfasst von: André, Florian [VerfasserIn]
• Verfasst von: Fritz, Thomas [VerfasserIn]
• Verfasst von: Halder, Manuel [VerfasserIn]
• Verfasst von: Zelniker, Thomas [VerfasserIn]
• Verfasst von: Kristen, Arnt [VerfasserIn]
• Verfasst von: Korosoglou, Grigorios [VerfasserIn]
• Verfasst von: Katus, Hugo [VerfasserIn]
• Verfasst von: Buß, Sebastian Johannes [VerfasserIn]
• Titel: Right ventricular long axis strain
• Titelzusatz: validation of a novel parameter in non-ischemic dilated cardiomyopathy using standard cardiac magnetic resonance imaging
• Verf.angabe: Nisha Arenja, Johannes H. Riffel, Charly Noel Djiokou, Florian Andre, Thomas Fritz, Manuel Halder, Thomas Zelniker, Arnt V. Kristen, Grigorios Korosoglou, Hugo A. Katus, Sebastian J. Buss
• E-Jahr: 2016
• Jahr: 6 May 2016
• Umfang: 7 S.
• Fussnoten: Gesehen am 18.08.2020
• Titel Quelle: Enthalten in: European journal of radiology
• Ort Quelle: Amsterdam [u.a.] : Elsevier Science, 1990
• Jahr Quelle: 2016
• Band/Heft Quelle: 85(2016), 7, Seite 1322-1328
• ISSN Quelle: 1872-7727
• DOI: doi:10.1016/j.ejrad.2016.04.017
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Cardiac magnetic resonance imaging
• Sach-SW: Long axis strain
• Sach-SW: Non-ischemic dilated cardiomyopathy
• Sach-SW: Right ventricular function
• K10plus-PPN: 1727352408

Abstract

Purpose - Right ventricular longitudinal axis strain (RV-LAS) is a simple measure of RV longitudinal function. The purpose of this study was the evaluation of its diagnostic performance in non-ischemic dilated cardiomyopathy (NIDCM) and the determination of reference values in controls. - Methods - 217 NIDCM patients and 200 healthy controls were analysed retrospectively regarding the diagnostic performance of RV-LAS using receiver operating characteristic curves in comparison with RV ejection fraction (RVEF), tricuspid annular plane systolic excursion (TAPSE) and global longitudinal strain (RV-GLS). Hereby, four different approaches were evaluated to assess RV-LAS based on different reference points. RV-LAS LVapex/mid was defined as the change in distance between the LV apex and the middle of a line connecting the origins of the tricuspidal valve leaflets in systole and diastole. The ethical approval was obtained in all participants. - Results - NIDCM and controls were 48 years in mean. Controls were equally gender distributed, while the proportion of men with NIDCM was higher with 77%. Among the four approaches RV-LAS LVapex/mid provided the highest diagnostic performance for discrimination between NIDCM and controls (AUC=0.94). Of all RV functional parameters RV-LAS LVapex/mid preformed significantly better than RVEF (delta AUC=0.05; p=0.003), TAPSE (delta AUC=0.23; p<0.0001) and RV-GLS (delta AUC=0.31; p<0.0001). A significant correlation was found between RV-LAS LVapex/mid and RVEF (r=−0.65; p<0.0001). The reference mean values for RV-LAS LVapex/mid were −17.4±3.5 for men and −18.5±3.7 for women. - Conclusion - RV-LAS showed better diagnostic accuracy for RV dysfunction than RVEF, TAPSE and RV-GLS. Furthermore, it has a rapid accessibility and low intra- and interobserver variability.