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Related Experiment Videos

Real-time three-dimensional echocardiography for quantifying left ventricular mass.

Hong-wen Fei1, Xin-fang Wang, Ming-xing Xie

  • 1Department of Diagnostic Ultrasound, Union Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430022. floyd2001@sina.com

Chinese Medical Sciences Journal = Chung-Kuo I Hsueh K'O Hsueh Tsa Chih
|October 28, 2004
PubMed
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Real-time three-dimensional echocardiography (RT3DE) accurately quantifies left ventricular mass (LVM) compared to traditional methods. The 8-plane method offers the best accuracy and convenience for LVM assessment using RT3DE.

Area of Science:

  • Cardiovascular Imaging
  • Echocardiography
  • Cardiac Mechanics

Background:

  • Accurate quantification of left ventricular mass (LVM) is crucial for assessing cardiac health and diagnosing cardiovascular diseases.
  • Traditional two-dimensional echocardiography (2DE) methods for LVM assessment have limitations in accuracy and reproducibility.
  • Real-time three-dimensional echocardiography (RT3DE) offers potential for improved volumetric measurements of the left ventricle.

Purpose of the Study:

  • To evaluate the accuracy of a real-time three-dimensional echocardiography (RT3DE) imaging system for quantifying left ventricular mass (LVM).
  • To compare the performance of RT3DE with conventional two-dimensional echocardiography (2DE) in phantom and excised canine heart models.

Main Methods:

  • Left ventricular (LV) wall phantoms and excised canine hearts were imaged using both RT3DE and 2DE.

Related Experiment Videos

  • Myocardial volume was measured with RT3DE using 2, 4, 8, and 16-plane methods, with mass calculated from volume and tissue density.
  • 2DE mass was determined by the area-length method; reference standards included water displacement for phantoms and direct weighing for canine hearts.

    • Main Results:

    • RT3DE demonstrated strong correlations with true LVM in phantoms (r=0.813-0.994) and excellent correlations in canine hearts (r=0.764-0.991).
    • 2DE showed weaker correlations with true LVM (phantoms: r=0.628; canine hearts: r=0.514).
    • RT3DE measurements showed no significant difference from true masses (P>0.05), unlike 2DE (P<0.05); the 8-plane and 16-plane methods were comparable (P>0.05).

    Conclusions:

    • RT3DE provides an accurate method for quantifying left ventricular mass (LVM).
    • RT3DE serves as a valuable new tool for evaluating left ventricular function.
    • The 8-plane measurement approach is recommended for RT3DE-based LVM assessment due to optimal accuracy and ease of use.