Quantitative Real-time 3-Dimensional Stress Echocardiography: A Preliminary Investigation of Feasibility and Effectiveness
| Autor: | James D. Thomas, Vivek Walimbe, Omosalewa Lalude, Raj Shekhar, Mario J. Garcia |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Adult
Male medicine.medical_specialty Myocardial ischemia Echocardiography Three-Dimensional Myocardial Ischemia Diagnostic accuracy Objective analysis Coronary Artery Disease Sensitivity and Specificity Cohort Studies Coronary artery disease Image Processing Computer-Assisted Stress Echocardiography Humans Medicine Radiology Nuclear Medicine and imaging Wall motion Interactive visualization Aged Observer Variation business.industry Reproducibility of Results Middle Aged medicine.disease Myocardial Contraction Feasibility Studies Female Radiology Cardiology and Cardiovascular Medicine business 3d echocardiography Echocardiography Stress Endocardium |
| Zdroj: | Journal of the American Society of Echocardiography. 20:13-22 |
| ISSN: | 0894-7317 |
| DOI: | 10.1016/j.echo.2006.07.012 |
| Popis: | Background Use of rapidly emerging real-time 3-dimensional (3D) echocardiography promises to improve the diagnostic accuracy of stress echocardiography (SE). However, widespread acceptance of 3D-SE, based on real-time 3D echocardiography, is hampered in part by lack of efficient, accurate, and objective analysis tools. Methods We propose novel algorithms for interactive visualization, registration (alignment), and quantitative analysis of prestress and poststress real-time 3D echocardiography to facilitate an objective diagnosis. In a preliminary evaluation, two experts independently performed wall-motion analysis in 15 patients with known/suspected coronary artery disease, using the novel quantitative 3D-SE methods. Results Compared with previously reported values for conventional 2-dimensional SE, improved interexpert agreement (κ = 0.85) was observed for segment-wise classification of normal/abnormal wall motion using the novel 3D-SE methods. Overall, 6 of 6 patients with abnormal myocardial segments were correctly identified by both experts with 3D-SE, compared with 4 of 6 with conventional 2-dimensional SE. Conclusion Initial results are promising and indicate the feasibility and potential of our proposed quantitative 3D-SE methodologies for improving diagnosis of wall-motion abnormalities. |
| Databáze: | OpenAIRE |
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