Reconstruction of velocity fields inside the myocardium using Tikhonov regularization

Mark Hastenteufel; Ivo Wolf; Raffaele de Simone M.D.; Sibylle Mottl-Link M.D.; Hans-Peter Meinzer

doi:10.1117/12.480411

2 May 2003 Reconstruction of velocity fields inside the myocardium using Tikhonov regularization

Mark Hastenteufel, Ivo Wolf, Raffaele de Simone M.D., Sibylle Mottl-Link M.D., Hans-Peter Meinzer

Proceedings Volume 5031, Medical Imaging 2003: Physiology and Function: Methods, Systems, and Applications; (2003) https://doi.org/10.1117/12.480411
Event: Medical Imaging 2003, 2003, San Diego, California, United States

Abstract

Most cardiac diseases, like coronary artery disease or valve defects, are related to wall motion malfunctions. Much research has been done in the estimation of cardiac movement using magnetic resonance (MR) techniques, like MR tagging or phase contrast MR. But echocardiography (cardiac ultrasound) is still the method of choice in clinical routine. Besides visual, subjective wall motion scoring using gray-scale data, myocardial velocities can be obtained using tissue Doppler techniques. A major limitation of Doppler techniques is the one-dimensional estimation of velocities: only the component towards transducer position is measured. Assessing the true velocity field will lead to a more objective measurement. In this paper we describe a method for reconstructing velocity fields using a-priori information about the solution. The feasibility is quantitatively evaluated using simulated data of typical velocity patterns. Translation, contraction and shear movement can be reconstructed well. The proposed method can also be used for the reconstruction of blood flow velocities using color Doppler.

Citation Download Citation

Mark Hastenteufel, Ivo Wolf, Raffaele de Simone M.D., Sibylle Mottl-Link M.D., and Hans-Peter Meinzer "Reconstruction of velocity fields inside the myocardium using Tikhonov regularization", Proc. SPIE 5031, Medical Imaging 2003: Physiology and Function: Methods, Systems, and Applications, (2 May 2003); https://doi.org/10.1117/12.480411

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