Ratio of Acceleration Time to Ejection Time for Assessing Aortic Stenosis Severity

Background Inconsistencies in the grading of aortic valve stenosis are frequent (24–38%). Guidelines highlight the waveform shape when discrepancies are present. Our aim was to evaluate the severity of aortic stenosis by the ratio of acceleration time to ejection time (AT/ET). Methods Between Januar...

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Veröffentlicht in:	Echocardiography (Mount Kisco, N.Y.) N.Y.), 2015-12, Vol.32 (12), p.1754-1761
Hauptverfasser:	Gamaza-Chulián, Sergio, Camacho-Freire, Santiago, Toro-Cebada, Rocío, Giráldez-Valpuesta, Alberto, Benezet-Mazuecos, Javier, Vargas-Machuca, José Carlos
Format:	Artikel
Sprache:	eng
Schlagworte:	Acceleration Aged Algorithms aortic stenosis aortic valve Aortic Valve - diagnostic imaging Aortic Valve - physiopathology Aortic Valve Stenosis - diagnostic imaging Aortic Valve Stenosis - physiopathology Doppler echocardiography Echocardiography, Doppler - methods ejection parameters Female Humans Image Interpretation, Computer-Assisted - methods Male Reproducibility of Results Sensitivity and Specificity Severity of Illness Index
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Zusammenfassung:	Background Inconsistencies in the grading of aortic valve stenosis are frequent (24–38%). Guidelines highlight the waveform shape when discrepancies are present. Our aim was to evaluate the severity of aortic stenosis by the ratio of acceleration time to ejection time (AT/ET). Methods Between January 2011 and January 2013, patients with at least moderate aortic stenosis (valve area 0.35 (9885 ± 3111 vs. 2600 ± 1175, P
ISSN:	0742-2822 1540-8175
DOI:	10.1111/echo.12978