ISMRM25 - Motion-Robust MRI: Reconstruction & Motion Correction

ISMRM & ISMRT Annual Meeting & Exhibition • 10-15 May 2025 • Honolulu, Hawai'i

Motion-Robust MRI: Reconstruction & Motion Correction

Oral

Acquisition & Reconstruction

Monday, 12 May 2025

312

08:15 - 10:15

Moderators: Jingjia Chen, Melissa Haskell & Onur Afacan

Session Number: O-05

No CME/CE Credit

08:15		Introduction Jingjia Chen
08:27		0027. High-resolution 0.16-mm time-of-flight angiography at 7 T with volumetric navigators for prospective motion correction D. Haenelt, J. Polimeni, Y. Chang, S. Bollmann, D. Gomez, S. Abbasi-Rad, A. Van der Kouwe, R. Frost Massachusetts General Hospital, Charlestown, United States Impact: We show that slab-selective isotropic 0.16-mm TOF-MRA is feasible with whole-brain volumetric navigators for prospective head motion correction, enabling robust in vivo imaging of the human vasculature at an unprecedented scale.
08:39		0028. Automatic respiratory and bulk patient motion corrected (ACROBATIC) free-running whole-heart 5D MRI R. Ferincz, L. Romanin, M. Prša, E. Tenisch, T. Rutz, J. Yerly, M. Stuber, C. Roy Department of Radiology, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), Switzerland, Lausanne, Switzerland Impact: Bulk motion correction in ferumoxytol-enhanced free-running 5D whole-heart MRI enhances image quality in patients, moving during the acquisition, by accounting for respiratory displacement and rigid bulk motion while rejecting outliers. This could reduce the need for sedation, particularly in pediatrics.
08:51		0029. K-CC-MoCo: A fast respiratory motion correction in coil-compressed K-space for highly accelerated first-pass perfusion cardiac MRI E. Moya-Sáez, R-M Menchón-Lara, J. Sanchez-Gonzalez, R. Nunes, C. Real, C. Galán-Arriola, B. Ibanez, T. Correia, C. Alberola-López University of Valladolid, Valladolid, Spain Impact: The k-space-based motion correction outperforms image-based correction in free-breathing FPP-CMR acquisitions accelerated up to 50x. This method can estimate/correct respiratory motion in k-space without an initial reconstruction, thereby enabling its use for model-based and/or deep-learning reconstructions from highly accelerated scans.
09:03		0030. Online spatiotemporally constrained reconstruction for real-time interactive MRI D. Le, P. Kumar, E. Yagiz, Y. Tian, K. Nayak University of Southern California, Los Angeles, United States Impact: We demonstrate low-latency reconstruction for 2D real-time MRI with spatial resolution 1.5/2.25mm², temporal resolution 25.2/31.8ms, and FOV 240×240/320×320mm, improving visual recognition of rapidly moving boundaries.
09:15		0031. Coil sketching for fast and efficient 4D lung MRI reconstruction J. Plummer, P. Daudé, R. Ramasawmy, A. Javed, A. Tsakirellis, J. Moss, A. Campbell-Washburn National Institutes of Health, Bethesda, United States Impact: 4D coil sketching enables <5 minute reconstructions for high-resolution respiratory-resolved lung imaging, without the need for server-grade GPUs. This approach is ideal for free-breathing lung MRI applications, like phase-resolved functional-lung (PREFUL) MRI, that demand extensive oversampling and high temporal resolution.
09:27		0032. A Framework for Inline Parallel Multi-Sequence Reconstructions: A Head Motion Correction Application Z. Ning, S. McElroy, S. Neves Silva, Y. Brackenier, R. Thornley, L. Canas, A. Price, J. Cleary, L. Grande, D. Tournier, J. Verdera, J. Hutter, P. Bridgen, P. Cio, M. Cleri, M. Modat, C. Steves, J. Hajnal King's College London, London, United Kingdom Impact: This generalized inline framework enables advanced but time-consuming, customised multi-sequence reconstructions within an MR examination without acquisition or scanner-reconstruction delays. It demonstrated high robustness and is extensible for future integration of customised methods across scanners via centralized servers.
09:39		0033. Motion- and field-robust ultra-high-resolution whole-brain imaging enabled by servo navigation M. Serger, R. Stirnberg, P. Ehses, M. Riedel, T. Ulrich, M. Zaitsev, N. Boulant, K. Pruessmann, T. Stoecker German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany Impact: Improvements in visibility of small vessels demonstrate the capability of servo navigators to correct for small motions and field changes during ultra-high-resolution T2*-weighted whole-brain imaging (0.25mm isotropic) using 3D-EPI.
09:51		0034. Scout-based Multi-Echo NAvigating (SMENA) for high temporal resolution motion and B0 estimation: applications to EPTI and multi-echo GRE N. Wang, Y. Brackenier, A. Nurdinova, Z. Zhou, D. Abraham, Y. Lin, X. Cao, C. Liao, K. Setsompop Stanford University, Stanford, United States Impact: SMENA was developed for joint estimation of motion and δB₀ at high temporal resolution. It can be flexibly applied to different sequences, providing accurate high-temporal-resolution motion and δB₀ tracking, and potentially unleashing the power of MRI on motion-subject populations
10:03		0035. Improving T2-Weighted TGSE-BLADE Liver Imaging via Model-Based Reconstruction with Self-Breathing Motion Correction U. Yarach, S. Akrasirakul, H. Mattern, O. Speck Chiang Mai University, Chiang Mai, Thailand Impact: This reconstruction method improves liver MRI by effectively managing breathing motion artifacts, enhancing diagnostic accuracy. It provides radiologists with clearer images, potentially reducing repeat scans and benefiting patients by minimizing the need for breath-hold techniques in routine imaging.

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