Continuous advances in hardware and software have made it possible to image dynamic processes in the human body in real-time with good quality using MRI. This page gives some information and references about a new reconstruction algorithm for dynamic MRI, which I have developed and implemented while working with Jens Frahm at the Biomedizinische NMR Forschungs GmbH at the Max Planck Institute for Biophysical Chemistry in Göttingen, Germany. When combined with a real-time acquisition method developed by Shuo Zhang et al. , the method yields MRI movies at high spatial and temporal resolution. The method is fast enough to observe turbulence after stirring in a water beaker, visualize swallowing and speaking, and to acquire images of the human heart without synchronization to an ECG .
 Martin Uecker, Shuo Zhang, Dirk Voit, Alexander Karaus, Klaus-Dietmar Merboldt, and Jens Frahm, Real-time magnetic resonance imaging at a resolution of 20 ms, NMR in Biomedicine 23: 986–994 (2010)
 Shuo Zhang, Kai Tobias Block, and Jens Frahm, Magnetic resonance imaging in real time: Advances using radial FLASH, J Magn Reson Imaging 31:101–109 (2010)
 Martin Uecker, Shuo Zhang, and Jens Frahm, Nonlinear Inverse Reconstruction for Real-time MRI of the Human Heart Using Undersampled Radial FLASH, Magnetic Resonance in Medicine 63 (6): 1456–1462 (2010)
 Leslie Ying and Jinhua Sheng, Joint image reconstruction and sensitivity estimation in SENSE (JSENSE), Magn Reson Med, 57: 1196–1202 (2007).
 Martin Uecker, Thorsten Hohage, Kai Tobias Block, and Jens Frahm, Image Reconstruction by Regularized Nonlinear Inversion - Joint Estimation of Coil Sensitivities and Image Content, Magnetic Resonance in Medicine 60:674-682 (2008)
 Shuo Zhang, Martin Uecker, Dirk Voit, Klaus-Dietmar Merboldt, and Jens Frahm, Real-time cardiac MRI at high temporal resolution: radial FLASH with nonlinear inverse reconstruction, Journal of Cardiovascular Magnetic Resonance 12:39 (2010)
 Sebastian Schätz and Martin Uecker, A Multi-GPU Programming Library for Real-Time Applications, 12th International Conference on Algorithms and Architectures for Parallel Processing (ICA3PP-2012), Fukuoka 2012, In Lecture Notes in Computer Science, 7439:114-128 (2012) arXiv:1301.1215 [cs.DC]
 Dirk Voit, Shuo Zhang, Christina Unterberg-Buchwald, Jan M Sohns, Joachim Lotzm and Jens Frahm, Real-time cardiovascular magnetic resonance at 1.5 T using balanced SSFP and 40 ms resolution Journal of Cardiovascular Magnetic Resonance, 15:79 (2013)
 Arun A Joseph, Klaus-Dietmar Merboldt, Dirk Voit, Shuo Zhang, Martin Uecker, Joachim Lotz, and Jens Frahm. Real-time phase-contrast MRI of cardiovascular blood flow using undersampled radial fast low-angle shot and nonlinear inverse reconstruction. NMR in Biomedicine 25:917-924 (2012)
 Arun Joseph, Johannes T Kowallick, Klaus-Dietmar Merboldt, Dirk Voit, Sebastian Schaetz, Shuo Zhang, Jan M Sohns, Joachim Lotz, and Jens Frahm, Real-time flow MRI of the aorta at a resolution of 40 msec. Journal of Magnetic Resonance Imaging, 40:206-213 (2014)
 Aaron Niebergall, Shuo Zhang, Esther Kunay, Götz Keydana, Michael Job, Martin Uecker, and Jens Frahm. Real-time MRI of Speaking at a Resolution of 33 ms: Undersampled Radial FLASH with Nonlinear Inverse Reconstruction, Magnetic Resonance in Medicine, 69:477-485 (2013)
 Shuo Zhang, Arno Olthoff, and Jens Frahm. Real-time magnetic resonance imaging of normal swallowing. Journal of Magnetic Resonance Imaging, 35: 1372-1379 (2012)
 Arno Olthoff, Shuo Zhang, Renate Schweizer, and Jens Frahm. On the Physiology of Normal Swallowing as Revealed by Magnetic Resonance Imaging in Real Time. Gastroenterology Research and Practice, 2014:493174 (2014)
 Julian Quodbach, Amir Moussavi, Roland Tammer, Jens Frahm, and Peter Kleinebudde, Tablet Disintegration Studied by High-Resolution Real-Time Magnetic Resonance Imaging. Journal of Pharmaceutical Sciences, 103: 249-255 (2014).
 B Xu, P Spincemaille, G Chen, M Agrawal, T. D. Nguyen, M. R. Prince, and Y. Wang, Fast 3D contrast enhanced MRI of the liver using temporal resolution acceleration with constrained evolution reconstruction,. Magnetic Resonance in Medicine 69: 370–381 (2013).