Screen Number: 26

J. M. Algarin, J. Pfitzer, Q. Chen, T. Guallart-Naval, B. Menkuec, M. Duarte, S. Malik, M. Zaiss, M. Uecker, J. Alonso, M. Zaitsev, J. P. Marques
Institute for Instrumentation in Molecular Imaging (i3M), CSIC, Valencia, Spain

Impact: This event showcased the transformative potential of in-situ scanners in MRI education, paving the way for future educational initiatives that can enhance practical skills and foster innovation in (low-field) MRI applications.

Screen Number: 27

M. Xu, W. M. Choo, T-O Liang, A. R, Y. Guo, S. Y. Huang
National University of Singapore, Singapore, Singapore

Impact: This work proposes the applications of 3D printing to shim sparse permanent magnet arrays with construction precision. It enables faster, cost-effective magnet array shimming, advancing MRI capabilities in resource-limited settings and improving global diagnostic access. 

Screen Number: 28

P. Lee, Y. Qiu, J. Liu, F. Jiang, Z. Zhang
Shanghai Jiao Tong University, Shanghai, China

Impact: The application of multiband Fast Spin Echo (FSE) refocusing pulses that do not satisfy CPMG phase constraints was achieved using a quadratic phase increment scheme. Employing quadratic phase increment schemes may permit relaxation of other common FSE design constraints.

Screen Number: 29

W. Selby, P. Garland, I. Mastikhin
University of New Brunswick, Fredericton, Canada

Impact: In this study, we demonstrate that simple, compact magnetic resonance instruments can effectively and quantitatively characterize tissue elasticity. These methods can be used with specific, purpose-built instruments that can be employed in high-impact areas as valuable tools for routine monitoring.

Screen Number: 30

P. Hsu, E. Marchetto, D. Sodickson, P. Johnson, J. Veraart
Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University Grossman School of Medicine, New York, United States

Impact: We present an optimal ULF image acquisition protocol with a scan time of approximately 15 minutes. Deep learning ULF image enhancement methods that are trained on this optimized protocol excel in the accuracy and reliability of subsequent brain volume analyses.

Screen Number: 31

L. Yang, Y. Kang, Z. Xu, H. Han
Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China

Impact: We introduce, for the first time, a PI technique specifically tailored for VLF MRI scanners. This technique halves the scanning time, which could be especially beneficial for stroke patients requiring VLF MRI assessments.

Screen Number: 32

K. Selvaganesan, V. Venkidu, M. Raja Viswanath, M. Shokrekhodaei, A. Reykowski, S. King
Promaxo Inc., Oakland, United States

Impact: Low-field, open MR systems allow for image-guided abdominal therapies but are limited by B₁+-field strength and penetration depth. The proposed local Tx RF-resonator enhances transmit efficiency and image quality, enabling deeper, more effective low-field abdominal imaging.

Screen Number: 33

A. R, B. Blümich, S. Y. HUANG
Singapore University of Technology and Design, Singapore, Singapore

Impact: This study lays the groundwork for optimizing layered Halbach arrays with unexplored polygonal and hybrid shapes that achieve stronger, more homogeneous fields. A formula for versatile cross-sections enables further innovation in magnet array designs.

Screen Number: 34

A. Leknes, A. Zahra, D. Scheiene, R. Macleod, C. Casella, J. Cole, J. O'Muircheartaigh, V. Nankabirwa, M. Bruchhage
University of Stavanger, Stavanger, Norway

Impact: Robust uncertainty estimates for brain anatomy are fundamental for investigating typical and atypical neurodevelopment. Propagating model uncertainties to volumetric estimates by comparing ULF results against gold standard high-field MRI can help guide diagnosis and assessment of brain health.

Screen Number: 35

J. Gholam, J. Ametepe, M. Cercignani, F. Padormo, D. Jones
CUBRIC, School of Psychology, Cardiff University, Cardiff, United Kingdom

Impact: This work demonstrates that diffusion estimates in inhomogeneous static fields with weak encoding gradients are likely to be significantly skewed by that inhomogeneity. We demonstrate a simple fieldmap correction that does not require downstream retooling and induces minimal noise enhancement.

Screen Number: 36

P. Povolni, K. Buckenmaier, S. Maltsev, K. Scheffler
Max Planck Institute for Biological Cybernetics, Tuebingen, Germany

Impact: Dynamic temperature-dependent B₀-drift of permanent magnet-based low-field MRI represents a significant challenge, especially with bSSFP sequences. Our experimental study, complemented by the construction of a prototype, demonstrates a solution to this problem through active water cooling of the magnets themselves.

Screen Number: 37

N. Bolding, C. Vaughn, A. Patel, S. Lin, J. Sun, W. Grissom, M. Griswold
Case Western Reserve University, Cleveland, United States

Impact: This gradient amplifier for low-field MRI employs a eGaN-transistor-based design to shrink size and cost while suppressing noise by switching at an optimized frequency, near to but not the Larmor frequency. These improvements will help improve MRI accessibility and mobility.

Screen Number: 38

S. Chen, S. Altman, J. Stockmann, C. Cooley, L. Wald
Massachusetts Institute of Technology, Cambridge, United States

Impact: We present a portable, single-sided 50mT B0 magnet with improved field coverage and a built-in 50mT/m gradient for readout, advancing the development of an MRI system capable of continuous brain imaging in acute-care settings.

Screen Number: 39

J. YANG, R. Qin, Y. Jiang, Z. Zhou, A. R, S. Y. Huang, W. Yu
Chiba University, Chiba, Japan

Impact: A novel, open, single-sided magnet array with 65mm imaging depth was designed through a design approach that breaks the limitations of traditional methods and optimize magnet configurations using different types of IO ring units. 

Screen Number: 40

X. Lin, Y. Ding, S. Su, A. Leong, Y. Zhao, E. Wu
The University of Hong Kong, Hong Kong SAR, China

Impact: The research aims to measure the relaxation properties of liver, muscle, kidney, spleen and spinal bone marrow. These measurements provide valuable information for the design and optimization of MRI sequences to achieve desired image contrast.

Screen Number: 41

C. Najac, R. van den Broek, T. O'Reilly, A. Webb, B. Lena
C.J. Gorter MRI Center, Radiology, Leiden University Medical Center, Leiden, Netherlands

Impact:

We examined the stability of our 46mT point-of-care MRI scanner by scanning healthy volunteers multiple times in a controlled lab settings and new locations (ICU and van). Findings showed minimal scan-to-scan variation and little differences across locations.

Screen Number: 42

C. Najac, A. Webb
C.J. Gorter MRI Center, Leiden, Netherlands

Impact: A framework has been established to estimate the signal-to-noise ratio obtainable on any given design of point-of-care low field imaging system.

Screen Number: 43

P. Razmara, T. Medani, A. A. Joshi, M. Abbasi Sisara, Y. Tian, S. X. Cui, J. P. Haldar, K. S. Nayak, R. M. Leahy
University of Southern California, Los Angeles, United States

Impact: This study demonstrates that reliable task-based fMRI is feasible on 0.55T scanners, potentially broadening functional neuroimaging access in clinical and research settings where high-field MRI is unavailable or impractical, supporting broader diagnostic and research applications.

Screen Number: 44

J. Vliem, I. Zivkovic
Eindhoven University of Technology, Eindhoven, Netherlands

Impact: This work suggests that toroid-inspired RF coils may offer a more efficient and homogeneous transmit field at ultra-low field MRI, supporting the development of affordable, high-quality imaging systems.

Screen Number: 45

S. Chen, Y. Qiu, P. Lee, S. Yang, H. Chen, Z. Zhang
School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China

Impact: Eddy currents in a samarium cobalt two-plate permanent magnet portable design can be reliably characterized in 5 minutes, which can be used to minimize impacts of field inhomogeneity, instability, and remanence, as well as improving clinical image quality (e.g., DWI).

Screen Number: 46

M. Sliwiak, A. Purchase, S. Altman, J. Short, M. David, V. Klein, J. Stockmann, L. Wald, C. Cooley
Athinoula A. Martinos Center for Biomedical Imaging, Charlestown, United States

Impact: The 136 mT bedside NICU MRI scanner addresses the high risks associated with transporting fragile neonates to conventional MRI facilities, offering safe, on-site brain imaging in the NICU. This could enable faster diagnosis and earlier interventions, potentially improving clinical outcomes.

Screen Number: 47

M. van Dijk, J. Vliem, L. Budé, G. Radulov, I. Zivkovic
Eindhoven University of Technology, Eindhoven, Netherlands

Impact: This work demonstrates the feasibility of a simplified DC coil structure to replace conventional gradient coils and introduces an effective approach for static field homogenization in ultra-low field MRI (54 mT).

Screen Number: 48

Y. Dong, T. O’Reilly, C. Najac, A. Webb, B. Lena
C.J. Gorter MRI Center, Department of Radiology, LUMC, Leiden, Netherlands

Impact: This approach enables faster, distortion-corrected imaging for low-field MRI in varied settings, expanding its potential for accessible, portable medical imaging in remote and resource-limited environments.

Screen Number: 49

P. Tusiime, R. Amodoi, M. Williams, R. Asiimwe, M. A. Nassejje, L. Lemi, O. Johnes
Mbarara University of Science and Technology, MBARARA, Uganda

Impact: The developed phantom enhances accessibility and improves calibration consistency reducing lengthy scan preparation times. It promotes local resource utilization &  collaborative research initiatives to advance healthcare technology in LMICS.

Screen Number: 50

J. Parsa, B. Lena, Y. Dong, A. Webb
Leiden University Medical Center , Leiden, Netherlands

Impact: This method of decoupling can make the application of solenoidal phase array possible for wrist imaging accelerate by factor 3 which is very important in point of care MRI systems.