ISMRM25 - High Field MRI

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

ISMRM & ISMRT 2025 Annual Meeting & Exhibition

Digital Poster

High Field MRI

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High Field MRI

Digital Poster

Physics & Engineering

Thursday, 15 May 2025

Exhibition Hall

09:15 - 10:15

Session Number: D-193

No CME/CE Credit

		Computer Number: 113 4380. In Vivo Human Brain MRSI at 10.5 T: Initial Insights View Presentation Video L. Hingerl, B. Strasser, S. Schmidt, K. Eckstein, G. Genovese, E. Auerbach, A. Grant, M. Waks, A. Wright, P. Lazen, A. Sadeghi Tarakameh, G. Hangel, F. Niess, Y. Eryaman, G. Adriany, G. Metzger, W. Bogner, M. Marjańska HFMR, Medical University of Vienna, Vienna, Austria Impact: We have shown for the first time that ¹H-FID-MRSI of the human brain at 10.5 T allows for 3D mapping of up to 13 neurochemicals. This technology could offer a unique view into the metabolic intricacies of the human brain.
		Computer Number: 114 4381. Ultra-high-resolution imaging of NHP head at 11.7T with a 32-channel Honeycomb modular receive array View Presentation Video E. Djaballah, P-F Gapais, M. Luong, T. Lilin, M. Roustan, A. Vignaud, N. Boulant, A. Amadon, Q. Zhu Cognitive Neuroimaging Unit, INSERM, CEA, Université Paris -Saclay, NeuroSpin Center, Gif-sur-Yvette, France Impact: The modularity of our receivers allows to image both human and non-human primate brains without the need for coil retuning. Ultra-high-resolution MRI of whole-head anesthetized NHP is demonstrated at 11.7T.
		Computer Number: 115 4382. Post-Traumatic Osteoarthritis Progression Over 14 Weeks: MRI Study of Cartilage Degradation Following a Sub-Critical Impact View Presentation Video A. Singh, Y. Xia, A. Tetmeyer, H. Mantebea Oakland University, Rochester, United States Impact: Without early diagnosis treating PTOA becomes extremely challenging. This study focuses on PTOA progression through 14 weeks after a single sub-critical impact. While risk factors of high-impact injuries are well known, the effects of low-force impact remain less understood.
		Computer Number: 116 4383. Comparison of the 60 Tx/32 Rx Tic-Tac-Toe RF head coil to the Nova 1 Tx/32 Rx RF coil in sTx mode at 7T View Presentation Video A. Sajewski, T. Santini, A. DeFranco, W. Salmon, C. Chu, J. Berardo, J. Berardinelli, H. Jin, J. Li, T. Campos, B. de Almeida, T. Ibrahim University of Pittsburgh, Pittsburgh, United States Impact: The 60 Tx/32 Rx Tic-Tac-Toe coil, designed for sTx mode, exceeds commercial standards for robust and homogenous imaging across a variety of subjects at 7T.
		Computer Number: 117 4384. Computational EM Simulation of Microscopic Graphene-Based Electrophysiology Probe at 7T MRI: Acceleration Using a Huygens' Box-Based Approach View Presentation Video S. Kumar, S. Flaherty, A. Labastida-Ramírez, A. Brunet, B. Dickie, R. Wykes, K. Kostarelos, L. Lemieux University College London, London, United Kingdom Impact: This study provides evidence on the superior MR suitability of graphene-based probes compared to the current technology for concurrent EEG-fMRI acquisitions, offering the prospect of unprecedented characterization of brain activity which could lead to better diagnostic and therapeutic strategies.
		Computer Number: 118 4385. Towards Combined Brain and Cervical Spine Imaging at 7 T with an 8-channel pTx Coil: The Importance of Accurate B1+ Maps for Dynamic pTx View Presentation Video C. Aigner, M. May, T. Fiedler, S. Kühn, H. Quick, S. Schmitter Max Planck Institute for Human Development, Berlin, Germany Impact: This simulation study demonstrates feasability of combined brain and cervical spine MRI at 7 Tesla using an eight Tx channel dynamic pTx setup. Optimized pTx pulses result in high FA homogeneity and enable detailed investigations of both neuroanatomical structures simultaneously.
		Computer Number: 119 4386. Bridging the gap: 150μm resolution whole brain ex-vivo imaging at 7T with RF shimming View Presentation Video D. Papp, M. Weigel, M. Rekecki, H. van Loo, M. Cseh, A. Szum, D. Park, K. Chow, T. Jimenez-Beristain, Z. Geretovszky, L. Szekely, G. Castelo-Branco, C. Granziera, T. Granberg, R. Ouellette Siemens Healthineers, Stockholm, Sweden Impact: Using commercial hardware and overnight scan times, ultra-high resolution MRI at 150μm isotropic voxel size can be acquired with sufficient SNR and image quality to detect and differentiate mesoscale structures
		Computer Number: 120 4387. Pushing human neuroscience past 7T: cerebellar imaging at 9.4T View Presentation Video W. van der Zwaag, D. Tse, B. Poser, N. Priovoulos Royal Netherlands Academy for Arts and Sciences, Amsterdam, Netherlands Impact: Reliably visualizing the cerebellum requires pushing past currently-feasible resolutions with B0=7T or lower. We demonstrate that neuroscientific experiments can be performed in the human cerebellum at 9.4T benefitting from elevated SNR and BOLD sensitivity.
		Computer Number: 121 4388. Evaluation of the coax monopole antenna as a transmit array element for head imaging at 14T View Presentation Video L. Budé, K. Vat, I. Voogt, I. Zivkovic, A. Raaijmakers University of Technology Eindhoven, Eindhoven, Netherlands Impact: The coax monopole antenna would be an excellent candidate for transmit head coil arrays at 14T MRI, due to its high SAR efficiency and low coupling. Additionally, its single-ended design facilitates cable routing, particularly in a spatially restricted environment.
		Computer Number: 122 4389. On the Reproducibility of Direct Signal Control with Variable Excitation and Refocusing (DiSCoVER) for TSE Shoulder MRI at 7T View Presentation Video O. Kraff, M. May, L. Wessing, H. Quick University Duisburg-Essen, Essen, Germany Impact: Clinically acceptable reproducibility of currently implemented TSE-DiSCoVER was not achieved over the full transversal cross-section. Renewing the RF shimming procedure can improve image quality, even across the whole slice. A need for improvements in underlying B₁⁺-mapping and postprocessing is shown.
		Computer Number: 123 4390. Leveraging Voxel Spread Function approach to Improve R2* Mapping Accuracy at 7T MRI View Presentation Video S. V. Kothapalli, J. Pan, F. Paladi, T. Altes, D. Yablonskiy Washington University in Saint Louis, Saint Louis, United States Impact: The voxel spread function (VSF) method shows great promise in correcting macroscopic magnetic field inhomogeneities in mGRE images, aiding in the accurate estimation of quantitative mGRE metrics such as R2* and myelin water fraction at ultra-high field MRI.
		Computer Number: 124 4391. A near-field coupling head coil with 40 elements for 5.0T MRI Y. Tan, Q. Chen, X. Fan, Y. Ma, B. Wu, X. Zhang, D. Liang, X. Liu, H. Zheng, Y. Li Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China Impact: The novel near-field coupling head coil represents a significant scholarly contribution to the field of magnetic resonance technology. This innovative design promises to enhance imaging performance at ultra-high field MRI, which will facilitate more accurate diagnostic assessments and paving the way for new frontiers in MRI research and clinical practice.
		Computer Number: 125 4392. Universal “MaxTheMin“ B1 Shimming: Robust Adiabatic Pulses at Ultra High-field View Presentation Video E. Pracht, D. Löwen, P. Ehses, T. Stöcker German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany Impact: Universal B₁ shimming improves adiabatic pulse performance by enhancing inversion efficiency across the brain without increasing scan time or requiring calibration. This advancement paves the way for higher-quality, more reproducible imaging at UHF, expanding its clinical and research applications.
		Computer Number: 126 4393. Water-cycled STEAM cardiac spectroscopy at 7T View Presentation Video E. McConnell Montoya, F. Mozes, D. Tyler, L. Valkovic University of Oxford, Oxford, United Kingdom Impact: Frequency-aligned spectra from water-suppression cycled acquisitions enable the quantification of low-concentration metabolites in the heart at 7T.
		Computer Number: 127 4394. Advancing mesoscale whole brain T2-weighted MRI in humans at 10.5 T using motion-robust multi-echo 3D EPI and RF parallel transmission View Presentation Video S. Qu, J. de Zwart, P. Van Gelderen, J. Duyn, M. Waks, R. Lagore, A. Bratch, A. Grant, E. Auerbach, L. Delabarre, A. Tarakameh, Y. Eryaman, G. Adriany, K. Ugurbil, X. Wu, J. Liu CMRR, Radiology, Medical School, University of Minnesota, Minneapolis, United States Impact:* Armed with rapid motion-robust 3D EPI and parallel transmission, the presented new multi-echo T₂*-weighted imaging strategy will benefit many neuroscience applications, especially those aiming to investigate fine scale anatomy in humans at ultrahigh field.
		Computer Number: 128 4395. Advancing whole-brain BOLD fMRI in humans at 10.5 Tesla with motion-robust 3D EPI and RF parallel transmission: initial experience View Presentation Video S. Qu, P. Van Gelderen, J. de Zwart, J. Duyn, M. Waks, R. Lagore, A. Bratch, A. Grant, E. Auerbach, L. Delabarre, A. Tarakameh, Y. Eryaman, G. Adriany, K. Ugurbil, J. Liu, X. Wu CMRR, Radiology, Medical School, University of Minnesota, Minneapolis, United States Impact: Demonstrated useful for whole-brain BOLD fMRI at 10.5 T, our pTx-enabled, motion-robust 3D EPI technique will have potential to advance ultrahigh resolution fMRI at ultrahigh field, paving the way for obtaining a better understanding of brain function and connectivity.

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