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Iterative Reconstruction Techniques for Magnetic Resonance ImagingAim of this project is the examination and development of
new applications for iterative reconstruction techniques for
magnetic resonance imaging in cardiology and oncology, which
in particular reduce acquisition time. For various reasons
this is desirable. On the one hand, reducing acquisition
time results in shorter examination times, which increase
patient throughput. On the other hand, it provides new
opportunities for acquisition. Many applications require the adaption of acquisition to
motion of the patient. Beside active motion, which can never
be avoided completely, additional respiratory and cardiac
motion has to be considered. In order to minimize the impact
of motion on the measurements, MR acquisitions are commonly
adapted to motion using physiological signals of the
patient. Thus, an optimal use of the restricted time slots
available for acquisition is required. Acquisition time can be reduced by skipping some measurement
data. However, using conventional methods, this leads to
artifacts in the reconstructed image. Iterative
reconstruction techniques promise to reduce artifacts in the
reconstruction of undersampled measurement data. For an
application in clinical routine, an acceptable
reconstruction time is mandatory. Therefore, an important
feature of this work is the acceleration of the algorithms
by leveraging GPUs for compute-intensive tasks. | Project manager: Dr. Kai T. Block, Peter Schmitt, Dr. Michael Zenge, Prof. Dr.-Ing. Joachim Hornegger
Project participants: Dr.-Ing. Christoph Forman, Dr.-Ing. Robert Grimm, Dr.-Ing. Jana Hutter
Keywords: MRI; Iterative Reconstruction; Compressed Sensing;
Duration: 1.7.2010 - 28.2.2014
Sponsored by: Siemens AG, Healthcare Sector
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Grimm, Robert ; Li, Feng ; Forman, Christoph ; ; Kiefer, Berthold ; Hornegger, Joachim ; Block, Tobias: Automatic Bolus Analysis for DCE-MRI Using Radial Golden-Angle Stack-of-stars GRE Imaging. In: Gold, Garry E. (Org.) : International Society for Magnetic Resonance in Medicine (ISMRM 21st Annual Meeting Salt Lake City, Utah, USA 20.-26.04.2013). 2013, pp 0696. | Grimm, Robert ; Forman, Christoph ; ; Kiefer, Berthold ; Hornegger, Joachim ; Block, Tobias: Fast Automatic Coil Selection for Radial Stack-of-stars GRE Imaging. In: Gold, Garry E. (Org.) : Proceedings of International Society for Magnetic Resonance in Medicine (ISMRM 21st Annual Meeting Salt Lake City, Utah, USA 20.-26.04.2013). 2013, pp 3786. | Forman, Christoph ; Grimm, Robert ; ; Maier, Andreas ; Hornegger, Joachim ; Zenge, Michael O.: Free-Breathing Whole-Heart Coronary MRA: Motion Compensation Integrated into 3D Cartesian Compressed Sensing Reconstruction. In: Mori, K. ; Sakuma, I. ; Sato, Y. ; Barillot, C. ; Navab, N. (Ed.) : MICCAI 2013, Part II, LNCS 8150 (Medical Image Computing and Computer-Assisted Intervention (MICCAI) Nagoya, Japan 22.-26.09.2013). Berlin Heidelberg : Springer, 2013, pp 575-582. | Forman, Christoph ; Grimm, Robert ; ; Wasza, Jakob ; Kraus, Martin ; Hornegger, Joachim ; Zenge, Michael 0.: Free-Breathing Whole-Heart Coronary MRI: An Image-Based Motion Compensation Integrated Into Compressed-Sensing Reconstruction. In: ISMRM (Ed.) : Proceedings of the 21st Annual Meeting of ISMRM (International Society for Magnetic Resonance in Medicine (ISMRM) Salt Lake City, UT, USA 20.-26.4.2013). 2013, pp 4528. | Greiser, Andreas ; Grimm, Robert ; Forman, Christoph ; Hornegger, Joachim ; Schmitt, Peter: Highly undersampled time resolved phase-contrast MRA with flow-adapted compressed sensing reconstruction. In: ISMRM (Ed.) : Proceedings of the 21st Annual meeting of the ISMRM (ISMRM 2013 Salt Lake City 20.-26.04.2013). 2013, pp -. | Zenge, Michael O. ; Lefebvre, Alban ; Forman, Christoph ; Grimm, Robert ; ; Liu, Jun ; Janardhanan, Nirmal ; Nadar, Mariappan: IRecon - Introducing a Standardized Interface into the Siemens Image Reconstruction Environment. In: ISMRM (Ed.) : Proceedings of the ISMRM Workshop on Data Sampling & Image Reconstruction (ISMRM Workshop on Data Sampling & Image Reconstruction Sedona, AZ, USA 3-6.2.2013). 2013, pp -. | Schmitt, Peter ; Aandal, Gunhild ; Greiser, Andreas ; Forman, Christoph ; Grimm, Robert ; Hornegger, Joachim ; Maier, Andreas: Low-rank and Sparse Matrix Decomposition for Compressed Sensing reconstruction of Magnetic Resonance 4D Phase Contrast blood flow imaging (LoSDeCoS 4D-PCI). In: MICCAI (Org.) : Proceedings of the Medical Image Computing and Computer-Assisted Intervention (16th International Conference (MICCAI 2013), Nagoya, Japan 22.-26.09.2013). Vol. 8149. New-York : Springer, 2013, pp 558-565. (LNCS) | Greiser, Andreas ; Grimm, Robert ; Forman, Christoph ; Hornegger, Joachim ; Schmitt, Peter: Multi-Dimensional Flow-Adapted Compressed Sensing (MDFCS) for time-resolved velocity-encoded Phase Contrast MRA. In: IEEE (Ed.) : Biomedical Imaging (ISBI), 2013 IEEE 10th International Symposium on (10th IEEE International Symposium on Biomedical Imaging: From Nano to Macro San Francisco 07.-11.04.2013). 2013, pp 13-16. [doi>10.1109/ISBI.2013.6556400] | Forman, Christoph ; Piccini, Davide ; Hornegger, Joachim ; Zenge, Michael O.: Novel Projection-Based Unsupervised Respiratory Motion Feedback for Free-Breathing Whole-Heart Coronary MR Imaging. In: ISMRM (Ed.) : Proceedings of the 21st Annual Meeting of ISMRM (International Society for Magnetic Resonance in Medicine (ISMRM) Salt Lake City, UT, USA 20.-26.4.2013). 2013, pp 1294. | Grimm, Robert ; Fürst, Sebastian ; Dregely, Isabel ; Forman, Christoph ; ; Ziegler, Sibylle ; Nekolla, Stephan ; Kiefer, Berthold ; Schwaiger, Markus ; Hornegger, Joachim ; Block, Kai Tobias: Self-Gated Radial MRI for Respiratory Motion Compensation on Hybrid PET/MR Systems. In: Mori, Kensaku ; Sakuma, Ichiro ; Sato, Yoshinobu ; Barillot, Christian ; Navab, Nassir (Ed.) : Proceedings of the 16th International Conference on Medical Image Computing and Computer Assisted Intervention (MICCAI 2013 Nagoya, Japan 22.-26.09.13). Vol. 8151. 2013, pp 17-24. [doi>10.1007/978-3-642-40760-4_3] |
Institution: Chair of Computer Science 5 (Pattern Recognition)
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