Abstract
MRI tissue tagging[1] of the heart produces noninvasivemarkers within the muscle wall that can be used to measure motion and deformation (Fig. 1a). However, the widespread use of tissue tagging has been limited by time-consuming image post-processing. This paper outlines a method for automatic 3D tracking of LV motion from 2D MRI images acquired from multiple views. Since the tags form a repetitive pattern in the images, the local phase can serve as a material property that can be tracked.We first derive displacement from local image phase, a quantity previously used for estimating disparity between two 2D images in stereo vision [2, 8] or to measure relative deformation, or strain [7]. Displacement estimates have also been used for least square fitting of a 2D affine motion model to angiography images [5].
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© 2001 Springer-Verlag Berlin Heidelberg
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Haber, I., Kikinis, R., Westin, CF. (2001). Phase-Driven Finite Element Model for Spatio-temporal Tracking in Cardiac Tagged MRI. In: Niessen, W.J., Viergever, M.A. (eds) Medical Image Computing and Computer-Assisted Intervention – MICCAI 2001. MICCAI 2001. Lecture Notes in Computer Science, vol 2208. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45468-3_217
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DOI: https://doi.org/10.1007/3-540-45468-3_217
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