Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Volkert, Roeloffs"'
Publikováno v:
Magnetic Resonance in Medicine. 90:520-538
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5236ae8687e8918d4c4fb422ee1ebfcc
https://doi.org/10.1002/mrm.29664
https://doi.org/10.1002/mrm.29664
Autor:
Xiaoqing, Wang, Sebastian, Rosenzweig, Volkert, Roeloffs, Moritz, Blumenthal, Nick, Scholand, Zhengguo, Tan, H Christian M, Holme, Christina, Unterberg-Buchwald, Rabea, Hinkel, Martin, Uecker
Publikováno v:
Magnetic resonance in medicineREFERENCES.
To develop a free-breathing myocardialFree-running (free-breathing, retrospective cardiac gating) IR radial FLASH is used for data acquisition at 3T. First, to reduce the waiting time between inversions, an analytical formula is derived that takes th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::c522a19e4c5fdeaaffc32fe8f2f1fba9
https://pubmed.ncbi.nlm.nih.gov/36404631
https://pubmed.ncbi.nlm.nih.gov/36404631
Publikováno v:
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Conventional magnetic resonance imaging (MRI) is hampered by long scan times and only qualitative image contrasts that prohibit a direct comparison between different systems. To address these limitations, model-based reconstructions explicitly model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dae0f5051443d0e99415ece579fa5763
https://pubmed.ncbi.nlm.nih.gov/33966457
https://pubmed.ncbi.nlm.nih.gov/33966457
Autor:
Xiaoqing Wang, Sebastian Rosenzweig, Volkert Roeloffs, Moritz Blumenthal, Nick Scholand, Zhengguo Tan, H. Christian M. Holme, Christina Unterberg‐Buchwald, Rabea Hinkel, Martin Uecker
Purpose: To develop a free-breathing myocardial T1 mapping technique using inversion-recovery (IR) radial fast low-angle shot (FLASH) and calibrationless motion-resolved model-based reconstruction. Methods: Free-running (free-breathing, retrospective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bdee1dee7c825c069c0307e757852f1
Conventional Magnetic Resonance Imaging (MRI) is hampered by long scan times and only qualitative image contrasts that prohibit a direct comparison between different systems. To address these limitations, model-based reconstructions explicitly model
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0427aecd9ab51c2f5523cf378dad4c9
Autor:
Jens Frahm, Jakob Klosowski, Dirk Voit, Volkert Roeloffs, Zhengguo Tan, Martin Uecker, Xiaoqing Wang
Publikováno v:
Magnetic Resonance in Medicine. 79:730-740
Purpose To develop a model-based reconstruction technique for single-shot T1 mapping with high spatial resolution, accuracy, and precision using an inversion-recovery (IR) fast low-angle shot (FLASH) acquisition with radial encoding. Methods The prop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8a7ea72fb4aec753180fa54d8305240
https://doi.org/10.1002/mrm.26726
https://doi.org/10.1002/mrm.26726
Publikováno v:
IEEE transactions on medical imaging. 39(4)
Purpose: To develop a method that adaptively generates tiny dictionaries for joint T1-T2 mapping. Theory: This work breaks the bond between dictionary size and representation accuracy (i) by approximating the Bloch-response manifold by piece-wise lin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5be5f7334796355298318d3b377d22b
https://pubmed.ncbi.nlm.nih.gov/31484113
https://pubmed.ncbi.nlm.nih.gov/31484113
Autor:
Xiaoqing Wang, Dirk Voit, Jens Frahm, Volkert Roeloffs, Tilman Johannes Sumpf, Markus Untenberger
Publikováno v:
International Journal of Imaging Systems and Technology. 26:254-263
Quantitative parameter mapping in MRI is typically performed as a two-step procedure where serial imaging is followed by pixelwise model fitting. In contrast, model-based reconstructions directly reconstruct parameter maps from raw data without expli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83f64f2dbca5bc4d17db28d3b00be23e
https://doi.org/10.1002/ima.22196
https://doi.org/10.1002/ima.22196
Autor:
Moritz Zaiss, Johannes Windschuh, Peter Bachert, Patrick Schuenke, Mark E. Ladd, Volkert Roeloffs
Publikováno v:
Magnetic Resonance in Medicine
Purpose Together with the development of MRI contrasts that are inherently small in their magnitude, increased magnetic field accuracy is also required. Hence, mapping of the static magnetic field (B0 ) and the excitation field (B1 ) is not only impo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a4ba407a47e08c1ff5e76333debf76d
https://doi.org/10.1002/mrm.26133
https://doi.org/10.1002/mrm.26133
Publikováno v:
Magnetic resonance in medicine. 81(3)
Purpose: A novel subspace-based reconstruction method for frequency-modulated balanced steady-state free precession (fmSSFP) MRI is presented. In this work, suitable data acquisition schemes, subspace sizes, and efficiencies for banding removal are i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e030e1cce487454234e1269db8246f2f
https://pubmed.ncbi.nlm.nih.gov/30357904
https://pubmed.ncbi.nlm.nih.gov/30357904