Improving 3D active appearance model segmentation of the left ventricle with Jacobian tuning

K .Y. E. Leung; M. van Stralen; M. M. Voormolen; N. de Jong; A. F. W. van der Steen; J. H. C. Reiber; J. G. Bosch

doi:10.1117/12.769436

26 March 2008 Improving 3D active appearance model segmentation of the left ventricle with Jacobian tuning

K .Y. E. Leung, M. van Stralen, M. M. Voormolen, N. de Jong, A. F. W. van der Steen, J. H. C. Reiber, J. G. Bosch

Proceedings Volume 6914, Medical Imaging 2008: Image Processing; 69143B (2008) https://doi.org/10.1117/12.769436
Event: Medical Imaging, 2008, San Diego, California, United States

Abstract

Automated image processing techniques may prove invaluable in the examination of real-time three-dimensional echocardiograms, by providing quantitative and objective measurements of functional parameters such as left ventricular (LV) volume and ejection fraction. In this study, we investigate the use of active appearance models (AAMs) for automatic detection of left ventricular endocardial contours. AAMs are especially useful in segmenting ultrasound images, due to their ability to model the typical LV appearance. However, since only a limited number of images is available for training, the model may be incapable of capturing the large variability in ultrasound image appearance. This may cause standard AAM matching procedures to fail if the model and image are significantly different. Recently, a Jacobian-tuning method for AAM matching was proposed, which allowed the model's training matrix to adapt to the new, unseen image. This may potentially result in a more robust matching. To compare both matching methods, AAMs were built with end-diastolic images from 54 patients. Larger capture ranges and higher accuracy were obtained when the new method was used. In conclusion, this method has great potential for segmentation in echocardiograms and will improve the assessment of LV functional parameters.

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K .Y. E. Leung, M. van Stralen, M. M. Voormolen, N. de Jong, A. F. W. van der Steen, J. H. C. Reiber, and J. G. Bosch "Improving 3D active appearance model segmentation of the left ventricle with Jacobian tuning", Proc. SPIE 6914, Medical Imaging 2008: Image Processing, 69143B (26 March 2008); https://doi.org/10.1117/12.769436

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