Automatic tablet-based monoplane quantification of stroke volume and left ventricular ejection fraction: A comparative assessment against computer-based biplane and monoplane tools.

Autor: de Raat FM; Department of Anesthesiology, Catharina Hospital, Eindhoven, The Netherlands.; Department of Electrical Engineering, Technical University of Eindhoven, Eindhoven, The Netherlands., Bingley P; Department of Electrical Engineering, Technical University of Eindhoven, Eindhoven, The Netherlands., Bouwmeester S; Department of Cardiology, Catharina Hospital, Eindhoven, The Netherlands., Felix SEA; Department of Cardiology, Catharina Hospital, Eindhoven, The Netherlands., Montenij LJ; Department of Anesthesiology, Catharina Hospital, Eindhoven, The Netherlands.; Department of Electrical Engineering, Technical University of Eindhoven, Eindhoven, The Netherlands., Bouwman AR; Department of Anesthesiology, Catharina Hospital, Eindhoven, The Netherlands.; Department of Electrical Engineering, Technical University of Eindhoven, Eindhoven, The Netherlands.
Jazyk: angličtina
Zdroj: Echocardiography (Mount Kisco, N.Y.) [Echocardiography] 2024 Aug; Vol. 41 (8), pp. e15904.
DOI: 10.1111/echo.15904
Abstrakt: Background: Point-of-care cardiovascular left ventricle ejection fraction (LVEF) quantification is established, but automatic tablet-based stroke volume (SV) quantification with handheld ultrasound (HAND) devices is unexplored. We evaluated a tablet-based monoplane LVEF and LV volume quantification tool (AutoEF) against a computer-based tool (Tomtec) for LVEF and SV quantification.
Methods: Patients underwent HAND scans, and LVEF and SV were quantified using AutoEF and computer-based software that utilized either apical four-chamber views (Auto Strain-monoplane [AS-mono]) or both apical four-chamber and apical two-chamber views (Auto Strain-biplane [AS-bi]). Correlation and Bland-Altman analysis were used to compare AutoEF with AS-mono and AS-bi.
Results: Out of 43 participants, eight were excluded. AutoEF showed a correlation of .83 [.69:.91] with AS-mono for LVEF and .68 [.44:.82] for SV. The correlation with AS-bi was .79 [.62:.89] for LVEF and .66 [.42:.81] for SV. The bias between AutoEF and AS-mono was 4.88% [3.15:6.61] for LVEF and 17.46 mL [12.99:21.92] for SV. The limits of agreement (LOA) were [-5.50:15.26]% for LVEF and [-8.02:42.94] mL for SV. The bias between AutoEF and AS-bi was 6.63% [5.31:7.94] for LVEF and 20.62 mL [16.18:25.05] for SV, with LOA of [-1.20:14.47]% for LVEF and [-4.71:45.94] mL for SV.
Conclusion: LVEF quantification with AutoEF software was accurate and reliable, but SV quantification showed limitations, indicating non-interchangeability with neither AS-mono nor AS-bi. Further refinement of AutoEF is needed for reliable SV quantification at the point of care.
(© 2024 The Author(s). Echocardiography published by Wiley Periodicals LLC.)
Databáze: MEDLINE
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