Document Detail

Freehand three-dimensional echocardiography with rotational scanning for measurements of left ventricular volume and ejection fraction in patients with coronary artery disease.
MedLine Citation:
PMID:  15693776     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Measurement of left ventricular (LV) volumes and ejection fraction (EF) is important in managing patients with coronary artery disease (CAD). Introduction of free-hand three-dimensional echocardiography (3DE) system which is equipped with small magnetic tracking system and average rotational geometry for LV volumes may provide easy and accurate quantification of LV systolic function in CAD patients. PURPOSE: To evaluate the feasibility and accuracy of LV volumes and EF measurement by free-hand 3DE with rotational geometry in patients with CAD. METHODS AND RESULTS: The study subjects consisted of consecutive 25 patients with CAD who were scheduled for quantitative gated single-photon emission computed tomography (QGS). LV end-diastolic volume (EDV), end-systolic volume (ESV), and EF were determined by conventional two-dimensional echocardiography (2DE), 3DE, and QGS. Three-dimensional echocardiography data acquisition and analysis were possible in 22 of 25 subjects (feasibility 88%). In this 3DE system, image acquisition time was 2 minutes, and 5 minutes were needed for off-line analysis of LV volumes and EF. Correlations and the limits of agreement between 3DE and QGS (r = 0.97, 0.0 +/- 9.1 ml for EDV, r = 0.99, 0.0 +/- 5.0 ml for ESV, and r = 0.97, 0.5 +/- 3.3% for EF, respectively) were superior to those between 2DE and QGS (r = 0.85, 12.6 +/- 26.8 ml for EDV, r = 0.85, 9.7 +/- 26.1 ml for ESV, and r = 0.90, -1.3 +/- 6.9% for EF, respectively). Inter- and intra-observer variabilities of 3DE were smaller than that of 2DE (5% vs 10%, 5% vs 10% for EDV, 6% vs 13%, 5% vs 9% for ESV, and 4% vs 11%, 4% vs 6% for EF, respectively). CONCLUSION: Three-dimensional echocardiography using magnetic tracking system and average rotational geometry offered a feasible and accurate method for quantification of LV volumes and EF in patients with CAD.
Shota Fukuda; Takeshi Hozumi; Hiroyuki Watanabe; Takashi Muro; Hiroyuki Yamagishi; Minoru Yoshiyama; Kazuhide Takeuchi; Junichi Yoshikawa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Echocardiography (Mount Kisco, N.Y.)     Volume:  22     ISSN:  0742-2822     ISO Abbreviation:  Echocardiography     Publication Date:  2005 Feb 
Date Detail:
Created Date:  2005-02-07     Completed Date:  2005-07-11     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8511187     Medline TA:  Echocardiography     Country:  United States    
Other Details:
Languages:  eng     Pagination:  111-9     Citation Subset:  IM    
Department of Internal Medicine and Cardiology, Osaka City University School of Medicine, 1-4-3 Asahi-machi, Abeno-ku, Osaka, Japan.
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MeSH Terms
Coronary Angiography
Coronary Artery Disease / ultrasonography*
Echocardiography, Three-Dimensional* / methods
Reproducibility of Results
Stroke Volume
Tomography, Emission-Computed, Single-Photon
Ventricular Function, Left

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