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Automated left heart chamber volumetric assessment using three-dimensional echocardiography in Chinese adolescents

Echo Research & Practice volume 4, pages 53–61 (2017)Cite this article

Abstract

Background: Several studies have reported the accuracy and reproducibility of HeartModel for automated determination of three-dimensional echocardiography (3DE)-derived left heart volumes and left ventricular (LV) ejection fraction (LVEF) in adult patients. However, it remains unclear whether this automated adaptive analytics algorithm, derived from a ‘training’ population, can encompass adequate echo images in Chinese adolescents.

Objectives: The aim of our study was to explore the accuracy of HeartModel in adolescents compared with expert manual three-dimensional (3D) echocardiography.

Methods: Fifty-three Chinese adolescent subjects with or without heart disease underwent 3D echocardiographic imaging with an EPIQ system (Philips). 3D cardiac volumes and LVEF obtained with the automated HeartModel program were compared with manual 3D echocardiographic measurements by an experienced echocardiographer.

Results: There was strong correlation between HeartModel and expert manual 3DE measurements (r = 0.875–0.965, all P < 0.001). Automated LV and left atrial (LA) volumes were slightly overestimated when compared to expert manual measurements, while LVEF showed no significant differences from the manual method. Importantly, the intra- and inter-observer variability of automated 3D echocardiographic model was relatively low (<1%), surpassing the manual approach (3.5–17.4%), yet requiring significantly less analyzing time (20 ± 7 vs 177 ± 30 s, P < 0.001).

Conclusion: Simultaneous quantification of left heart volumes and LVEF with the automated HeartModel program is rapid, accurate and reproducible in Chinese adolescent cohort. Therefore, it has a potential to bring 3D echocardiographic assessment of left heart chamber volumes and function into busy pediatric practice.

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Author information

Author notes

  1. X-X Luo and F Fang contributed equally

  2. M-C Yam and A P-W Lee contributed equally

Authors and Affiliations

  1. Department of Ultrasonography, Shenzhen Hospital, Southern Medical University, Shenzhen, People’s Republic of China

    Xiu-Xia Luo MB

  2. Division of Cardiology, Department of Medicine and Therapeutics, Prince of Wales Hospital, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, People’s Republic of China

    Xiu-Xia Luo MB, Chao Liu MB & Alex Pui-Wai Lee MD

  3. Beijing Institute of Heart, Lung and Blood Vessel Diseases, Beijing Anzhen Hospital, Capital Medical University, Beijing, People’s Republic of China

    Fang Fang PhD

  4. Department of Pediatrics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, People’s Republic of China

    Hung-Kwan So PhD & Man-Ching Yam MRCP

Authors
  1. Xiu-Xia Luo MB
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  2. Fang Fang PhD
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Correspondence to Alex Pui-Wai Lee MD.

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Luo, XX., Fang, F., So, HK. et al. Automated left heart chamber volumetric assessment using three-dimensional echocardiography in Chinese adolescents. Echo Res Pract 4, 53–61 (2017). https://doi.org/10.1530/ERP-17-0028

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Echo Research & Practice

ISSN: 2055-0464

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