A fast and accurate method for echocardiography strain rate imaging

Vahid Tavakoli; Nima Sahba; Nima Hajebi; Mohammad Saleh Nambakhsh

doi:10.1117/12.807568

27 March 2009 A fast and accurate method for echocardiography strain rate imaging

Vahid Tavakoli, Nima Sahba, Nima Hajebi, Mohammad Saleh Nambakhsh

Proceedings Volume 7259, Medical Imaging 2009: Image Processing; 72592G (2009) https://doi.org/10.1117/12.807568
Event: SPIE Medical Imaging, 2009, Lake Buena Vista (Orlando Area), Florida, United States

Abstract

Recently Strain and strain rate imaging have proved their superiority with respect to classical motion estimation methods in myocardial evaluation as a novel technique for quantitative analysis of myocardial function. Here in this paper, we propose a novel strain rate imaging algorithm using a new optical flow technique which is more rapid and accurate than the previous correlation-based methods. The new method presumes a spatiotemporal constancy of intensity and Magnitude of the image. Moreover the method makes use of the spline moment in a multiresolution approach. Moreover cardiac central point is obtained using a combination of center of mass and endocardial tracking. It is proved that the proposed method helps overcome the intensity variations of ultrasound texture while preserving the ability of motion estimation technique for different motions and orientations. Evaluation is performed on simulated, phantom (a contractile rubber balloon) and real sequences and proves that this technique is more accurate and faster than the previous methods.

Citation Download Citation

Vahid Tavakoli, Nima Sahba, Nima Hajebi, and Mohammad Saleh Nambakhsh "A fast and accurate method for echocardiography strain rate imaging", Proc. SPIE 7259, Medical Imaging 2009: Image Processing, 72592G (27 March 2009); https://doi.org/10.1117/12.807568

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