Abstract
Magnetic Resonance Imaging (MRI) has become an important tool for dynamic clinical studies. Regrettably, the long acquisition time is still a challenge in dynamic MRI. Several undersampled reconstruction techniques have been developed to speed up the acquisition without significantly compromising image quality. Most of these methods are based on modeling the pixel intensity changes. Recently, we introduced a new approach based on the motion estimation of each object element (obel, a piece of tissue). Although the method works well, the outcome is a trade off between the maximum undersampling factor and the motion estimation accuracy. In this work we propose to improve its performance through the use of additional data from multiple coils acquisition. Preliminary results on cardiac MRI show that further undersampling and/or improved reconstruction accuracy is achieved using this technique. Furthermore, an approximation of the vector field of motion is obtained. This method is appropriate for sequences where the obels’ intensity through time is nearly constant.
Chapter PDF
Similar content being viewed by others
References
Abd-Elmoniem, K.Z., Osman, N.F., Prince, J.L., Stuber, M.: Three-dimensional magnetic resonance myocardial motion tracking from a single image plane. Magn. Reson. Med. 58, 92–102 (2007)
Sakuma, H.: Magnetic resonance imaging for ischemic heart disease. J. Magn. Reson. Imaging. 26, 3–13 (2007)
Raman, V.K., Lederman, R.J.: Interventional cardiovascular magnetic resonance imaging. Trends Cardiovasc. Med. 17, 196–202 (2007)
Gupta, V., Khandelwal, N., Mathuria, S., Singh, P., Pathak, A., Suri, S.: Dynamic magnetic resonance imaging evaluation of craniovertebral junction abnormalities. J. Comput. Assist. Tomogr. 31, 354–359 (2007)
Xiang, Q.S., Henkelman, R.M.: k-space description for MR imaging of dynamic objects. Magn. Reson. Med. 29, 422–428 (1993)
Jones, R.A., Haraldseth, O., Muller, T.B., Rinck, P.A., Oksendal, A.N.: k-space substitution: a novel dynamic imaging technique. Magn. Reson. Med. 29, 830–834 (1993)
van Vaals, J.J., Brummer, M.E., Dixon, W.T., Tuithof, H.H., Engels, H., Nelson, R.C., Gerety, B.M., Chezmar, J.L., den Boer, J.A.: Keyhole method for accelerating imaging of contrast agent uptake. J. Magn. Reson. Imaging 3, 671–675 (1993)
Hu, X., Parrish, T.: Reduction of field of view for dynamic imaging. Magn. Reson. Med. 31, 691–694 (1994)
Madore, B., Glover, G.H., Pelc, N.J.: Unaliasing by Fourier-encoding the overlaps using the temporal dimension (UNFOLD), applied to cardiac imaging and fMRI. Magn. Reson. Med. 42, 813–828 (1999)
Tsao, J., Boesinger, P., Pruessmann, K.P.: k-t BLAST and k-t SENSE: dynamic MRI with high frame rate exploiting spatiotemporal correlations. Magn. Reson. Med. 50, 1031–1042 (2003)
Irarrazaval, P., Bourbetakh, R., Razavi, R., Hill, D.: Dynamic three-dimensional undersampled data reconstruction employing temporal registration. Magn. Reson. Med. 54, 1207–1215 (2005)
Prieto, C., Batchelor, P., Hill, D., Hajnal, J., Guarini, M., Irarrazaval, P.: Reconstruction of undersampled dynamic images by modeling the motion of objects elements. Magn. Reson. Med. 57, 939–949 (2007)
Pruessmann, K.P., Werger, M., Scheidegger, M.B., Boesinger, P.: SENSE: Sensitivity encoding for fast MRI. Magn. Reson. Med. 42, 952–962 (1999)
Sodickson, D.K., Mannin, W.J.: Simultaneous acquisition of spatial harmonics (SMASH): ultra-fast imaging with radiofrequency coil arrays. Magn. Reson. Med. 38, 591–603 (1997)
Batchelor, P.G., Atkinson, D., Irarrazaval, P., Hill, D.L.G., Hajnal, J., Larkman, D.: Matrix description of genearal motion correction applied to multishot images. Magn. Reson. Med. 54, 1273–1280 (2005)
d’Arcy, J.A., Collins, D.J., Rowland, I.J., Padhani, A.R., Leach, M.O.: Applications of sliding window reconstruction with Cartesin sampling for dynamic contrast enhancement MRI. NMR. BioMed. 15, 174–183 (2002)
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 2007 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Prieto, C., Guarini, M., Hajnal, J., Irarrazaval, P. (2007). Motion Estimation Applied to Reconstruct Undersampled Dynamic MRI. In: Mery, D., Rueda, L. (eds) Advances in Image and Video Technology. PSIVT 2007. Lecture Notes in Computer Science, vol 4872. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77129-6_46
Download citation
DOI: https://doi.org/10.1007/978-3-540-77129-6_46
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-77128-9
Online ISBN: 978-3-540-77129-6
eBook Packages: Computer ScienceComputer Science (R0)