The use of automated methods is becoming increasingly important for assessing cardiac function quantitatively and objectively. In this study, we propose a method for tracking three-dimensional (3-D) left ventricular contours. The method consists of a local optical flow tracker and a global tracker, which uses a statistical model of cardiac motion in an optical-flow formulation. We propose a combination of local and global trackers using gradient-based weights. The algorithm was tested on 35 echocardiographic sequences, with good results (surface error: 1.35 ± 0.46 mm, absolute volume error: 5.4 ± 4.8 mL). This demonstrates the method's potential in automated tracking in clinical quality echocardiograms, facilitating the quantitative and objective assessment of cardiac function. (E-mail: k.leung@erasmusmc.nl).

Additional Metadata
Keywords Optical flow, Principal component analysis, Three-dimensional echocardiography, Tracking
Persistent URL dx.doi.org/10.1016/j.ultrasmedbio.2011.01.010, hdl.handle.net/1765/33881
Citation
Leung, K.Y.E, Danilouchkine, M, van Stralen, M, de Jong, N, van der Steen, A.F.W, & Bosch, J.G. (2011). Left Ventricular Border Tracking Using Cardiac Motion Models and Optical Flow. Ultrasound in Medicine & Biology, 37(4), 605–616. doi:10.1016/j.ultrasmedbio.2011.01.010