RT Journal Article
T1 Proximal isovelocity surface area by single-beat three-dimensional color doppler echocardiography applied for tricuspid regurgitation quantification
A1 De Agustín Loeches, José Alberto
A1 Viliani, Dafne
A1 Vieira, Catarina
A1 Islas, Fabian
A1 Marcos-Alberca, Pedro
A1 Gomez de Diego, Jose Juan
A1 Nunez-Gil, Ivan Javier
A1 Almeria, Carlos
A1 Rodrigo López, José Luis
A1 Luaces Méndez, María
A1 García Fernández, Miguel Ángel
A1 Macaya Miguel, Carlos
A1 Pérez De Isla, Leopoldo
AB Background: The two-dimensional (2D) proximal isovelocity surface area (PISA) method has known technicallimitations, mainly the geometric assumptions of PISA shape required to calculate effective regurgitant orificearea (EROA). Recently developed single-beat real-time three-dimensional (3D) color Doppler imaging allowsthe direct measurement of PISA without geometric assumptions and has already been validated for mitralregurgitation assessment. The aim of this study was to apply this novel method in patients with chronictricuspid regurgitation (TR).Methods: Ninety patients with chronic TR were enrolled. EROA and regurgitant volume (Rvol) were assessedusing transthoracic 2D and 3D PISA methods. Quantitative Doppler and 3D transthoracic planimetry of EROAwere used as reference methods.Results: Both EROA and Rvol assessed using the 3D PISA method had better correlations with the referencemethods than using conventional 2D PISA, particularly in the assessment of eccentric jets. On the basis of 3Dplanimetry–derived EROA, 35 patients had severe TR (EROA $ 0.4 cm2). Among these 35 patients, 25.7%(n = 9) were underestimated as having nonsevere TR (EROA # 0.4 cm2) using the 2D PISA method. In contrast,the 3D PISA method had 94.3% agreement (33 of 35) with 3D planimetry in classifying severe TR. Goodintraobserver and interobserver agreement for 3D PISA measurements was observed, with intraclasscorrelation coefficients of 0.92 and 0.88 respectively.Conclusions: TR quantification using PISA by single-beat real-time 3D color Doppler echocardiography isfeasible in the clinical setting and more accurate than the conventional 2D PISA method. (J Am Soc Echocardiogr 2013;26:1063-72.)
PB Elsevier
SN 0894-7317
YR 2013
FD 2013
LK https://hdl.handle.net/20.500.14352/131331
UL https://hdl.handle.net/20.500.14352/131331
LA eng
NO de Agustin, J. A., Viliani, D., Vieira, C., Islas, F., Marcos-Alberca, P., Gomez de Diego, J. J., Nuñez-Gil, I. J., Almeria, C., Rodrigo, J. L., Luaces, M., Garcia-Fernandez, M. A., Macaya, C., & Perez de Isla, L. (2013). Proximal isovelocity surface area by single-beat three-dimensional color Doppler echocardiography applied for tricuspid regurgitation quantification. Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography, 26(9), 1063–1072. https://doi.org/10.1016/j.echo.2013.06.006
DS Docta Complutense
RD 2 abr 2026