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Erschienen in: Pediatric Cardiology 3/2021

04.01.2021 | Original Article

Ultrasound Cardiac Output Monitor (USCOM™) Measurements Prove Unreliable Compared to Cardiac Magnetic Resonance Imaging in Adolescents with Cardiac Disease

verfasst von: Avichai Weissbach, Amichay Rotstein, Yaniv Lakovsky, Eytan Kaplan, Gili Kadmon, Einat Birk, Elhanan Nahum

Erschienen in: Pediatric Cardiology | Ausgabe 3/2021

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Abstract

The purpose of this stuy is to prospectively assess the reliability of the ultrasound cardiac output monitor (USCOM™) for measuring stroke volume index and predicting left ventricular outflow tract diameter in adolescents with heart disease. Sixty consecutive adolescents with heart disease attending a tertiary medical center underwent USCOM™ assessment immediately after cardiac magnetic resonance imaging. USCOM™ measured stroke volume index and predicted left ventricular outflow tract diameter were compared to cardiac magnetic resonance imaging-derived values using Bland–Altman analysis. Ten patients with an abnormal left ventricular outflow tract were excluded from the analysis. An adequate USCOM™ signal was obtained in 49/50 patients. Mean stroke volume index was 46.1 ml/m2 by the USCOM™ (range 22–66.9 ml/m2) and 42.9 ml/m2 by cardiac magnetic resonance imaging (range 24.7–59.9 ml/m2). The bias (mean difference) was 3.2 ml/m2; precision (± 2SD of differences), 17 ml/m2; and mean percentage error, 38%. The mean (± 2SD) left ventricular outflow tract diameter was 0.445 ± 0.536 cm smaller by the USCOM™ algorithm prediction than by cardiac magnetic resonance imaging. Attempted adjustment of USCOM™ stroke volume index using cardiac magnetic resonance imaging left ventricular outflow tract diameter failed to improve agreement between the two modalities (bias 28.4 ml/m2, precision 44.1 ml/m2, percentage error 77.3%). Our study raises concerns regarding the reliability of USCOM™ for stroke volume index measurement in adolescents with cardiac disease, which did not improve even after adjusting for its inaccurate left ventricular outflow tract diameter prediction.
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Metadaten
Titel
Ultrasound Cardiac Output Monitor (USCOM™) Measurements Prove Unreliable Compared to Cardiac Magnetic Resonance Imaging in Adolescents with Cardiac Disease
verfasst von
Avichai Weissbach
Amichay Rotstein
Yaniv Lakovsky
Eytan Kaplan
Gili Kadmon
Einat Birk
Elhanan Nahum
Publikationsdatum
04.01.2021
Verlag
Springer US
Erschienen in
Pediatric Cardiology / Ausgabe 3/2021
Print ISSN: 0172-0643
Elektronische ISSN: 1432-1971
DOI
https://doi.org/10.1007/s00246-020-02531-8

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