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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Duan, Q. Parker, K.M. Lorsakul, A. Angelini, E.D. Hyodo, E. Homma, S. Holmes, J.W. Laine, A.F. |
| Copyright Year | 2009 |
| Description | Author affiliation: Department of Medicine, Columbia University, New York, USA (Hyodo, E.; Homma, S.) || Institut TELECOM, TELECOM ParisTech, CNRS LTCI, Paris, France (Parker, K.M.; Angelini, E.D.) || Department of Biomedical Engineering, Columbia University, New York, USA (Duan, Q.; Lorsakul, A.; Laine, A.F.) || Departments of Biomedical Engineering & Medicine, University of Virginia, Charlottesville, USA (Holmes, J.W.) |
| Abstract | Dynamic cardiac metrics, including myocardial strains and displacements, provide a quantitative approach to evaluate cardiac function. However, in current clinical diagnosis, largely 2D strain measures are used despite that cardiac motions are complex 3D volumes over time. Recent advances in 4D ultrasound enable the capability to capture such complex motion in a single image data set. In our previous work, a 4D optical flow based motion tracking algorithm was developed to extract full 4D dynamic cardiac metrics from such 4D ultrasound data. In order to quantitatively evaluate this tracking method, in-vivo coronary artery occlusion experiments at various locations were performed on three canine hearts. Each dog was screened with 4D ultrasound and sonomicrometry data was acquired during each occlusion study. The 4D ultrasound data from these experiments was then analyzed with the tracking method and estimated principal strain measures were directly compared to those recorded by sonomicrometry. Strong agreement was observed independently for the three canine hearts. This is the first validation study of optical flow based strain estimation for 4D ultrasound with a direct comparison with sonomicrometry using in-vivo data. |
| Starting Page | 454 |
| Ending Page | 457 |
| File Size | 570285 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424439317 |
| ISSN | 19457928 |
| DOI | 10.1109/ISBI.2009.5193082 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-06-28 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Strain measurement Image motion analysis Myocardium Fluid flow measurement Ultrasonic imaging Ultrasonic variables measurement Capacitive sensors Heart Clinical diagnosis Current measurement 4D ultrasound cardiac strain optical flow speckle tracking sonomicrometry |
| Content Type | Text |
| Resource Type | Article |
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