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Left ventricular endocardial surface detection based on real-time 3D echocardiographic dataOBJECTIVE: A new computerized semi-automatic method for left ventricular (LV) chamber segmentation is presented. METHODS: The LV is imaged by real-time three-dimensional echocardiography (RT3DE). The surface detection model, based on level set techniques, is applied to RT3DE data for image analysis. The modified level set partial differential equation we use is solved by applying numerical methods for conservation laws. The initial conditions are manually established on some slices of the entire volume. The solution obtained for each slice is a contour line corresponding with the boundary between LV cavity and LV endocardium. RESULTS: The mathematical model has been applied to sequences of frames of human hearts (volume range: 34-109 ml) imaged by 2D and reconstructed off-line and RT3DE data. Volume estimation obtained by this new semi-automatic method shows an excellent correlation with those obtained by manual tracing (r = 0.992). Dynamic change of LV volume during the cardiac cycle is also obtained. CONCLUSION: The volume estimation method is accurate; edge based segmentation, image completion and volume reconstruction can be accomplished. The visualization technique also allows to navigate into the reconstructed volume and to display any section of the volume.
Document ID
20040112520
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Corsi, C.
(D.E.I.S.-Viale Risorgimento 2, I-40136, Bologna, Italy)
Borsari, M.
Consegnati, F.
Sarti, A.
Lamberti, C.
Travaglini, A.
Shiota, T.
Thomas, J. D.
Date Acquired
August 21, 2013
Publication Date
April 1, 2001
Publication Information
Publication: European journal of ultrasound : official journal of the European Federation of Societies for Ultrasound in Medicine and Biology
Volume: 13
Issue: 1
ISSN: 0929-8266
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
Non-NASA Center
NASA Discipline Cardiopulmonary

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