Novel Gradients
Digital Poster
Physics & Engineering
Monday, 11 May 2026
New developments in gradient design, characterization, and construction
Skill Level: Intermediate
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368-06-001.
Compact 7T Head Gradient Cardiac Stimulation Evaluation by Electric Field Simulation
Impact: IEC standard hasn’t provided detail
instructions on cardiac stimulation compliance evaluation for non-wholebody gradient coils. We employed 17 human body models (youngest 8 weeks old) and confirmed HG4 on Compact 7T has minimal unintended CS risk at head scan position.
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368-06-002.
Temporal and Cross-Axis Interactions in Multifrequency Gradient-Induced Peripheral Nerve Stimulation (PNS)
Impact: Non-additive temporal and cross-axis PNS effects in multifrequency gradients challenge linear superposition assumptions in current simulations, enabling the development of sequence-specific PNS prediction models and optimization strategies that could substantially improve gradient utilization in clinical imaging.
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368-06-003.
Predicting Acoustic Noise and Vibration Trends for Pulse Sequence Parameter Optimization
Impact: This work presents a practical optimization method that predicts noise and vibration trends rather than full spectra, offering a more efficient approach to reducing patient discomfort during MRI scans.
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368-06-004.
A current sensor gradient impulse response function for concurrent higher-order field monitoring
Impact: This work facilitates the concurrent measurement of spatiotemporal fields up to 3rd order in space during imaging. By avoiding amplifier nonlinearities, in the future it may allow accurate forward-model reconstruction in demanding sequences such as diffusion imaging, improving image quality.
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368-06-005.
A Low Cost Resonant Gradient Amplifier for "Plug and Play" Gradient Coil Inserts
Impact: A low cost gradient power amplifier (GPA) capable of resonantly driving custom gradient coil inserts to high amplitudes and slew rates makes high performance gradients accessible in standard whole-body scanners and enables researchers to push the limits of fast imaging.
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368-06-006.
Effects of Patient Lateral Movement on Implant-Induced Nerve Stimulation During MRI
Impact: Patient lateral positioning significantly
affects implant-induced nerve stimulation and should be considered in MR safety
labeling.
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368-06-007.
Efficiency Optimization of a Transverse MRI Gradient Array Derived from a Conventional Gradient Coil
Impact: Transforming the conventional transverse gradient to an array coil and optimizing per-channel currents demonstrates lower power dissipation and stored energy. Lower power losses and energy ease cooling and enable faster switching, supporting efficient, scalable MRI gradient hardware.
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368-06-008.
Vibration-Optimized Oscillating Gradient dMRI Improves Image Fidelity and Reproducibility on an Ultra-high Gradient system
Impact: This work provides a
quantitative demonstration of how mechanical vibration directly impacts image
fidelity and parameter estimation in OGSE application. This highlights the
importance of accounting for vibration as a tangible source of error on high-performance gradient MRI systems.
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368-06-009.
Quiet Oscillating Diffusion Gradients on Ultra-high Gradient Systems
Impact: We
demonstrated the effectiveness of our optimization framework for quieting OGSE
on an ultra-high gradient system, resolving a critical obstacle for future applications
of OGSE on advanced gradients.
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368-06-010.
Industrial Prototype of a bilateral local breast gradient coil for diffusion encoding and supersonic readout
Impact:
Dedicated local breast gradient coils can overcome current limits for diffusion-weighted MRI. It can offer a cost-effective alternative to current screening methods, requiring no contrast agents. |
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368-06-011.
Single-channel dual-layer nonlinear breast gradient coil for an order of magnitude increase in gradient strength
Impact: The prototype implementation paves the way for
novel diffusion imaging techniques to enhance the detection and
characterization of breast cancer.
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368-06-012.
Open Source Gradient System for the OSI2 MRI Scanner
Impact: This main component of a low-field MRI system
enables accessible point-of-care imaging and fosters reproducible,
sustainable MRI research and development. The presented open-source gradient coil and all design steps are documented and openly available.
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368-06-013.
Independent field stability assessments in advanced diffusion sequences using quantum sensing and MR
Impact: We compare two novel approaches for assessing field instabilities in a dMRS
protocol. Two independent methods (MR and non-MR based) show good agreement,
indicating robust performance. Both techniques have the potential to enable new
applications within diffusion protocols and beyond.
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368-06-014.
Quantifying MRI Energy Consumption: Impact of Gradient System, Mode, and Bandwidth During Active Scanning
Impact: This study provides the first quantitative evidence that the gradient system is a major contributor to MRI energy consumption during active scanning and that altering gradient mode and bandwidth affects energy use, highlighting opportunities for energy-efficient sequence design.
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368-06-015.
Design of a gradient coil set for a 0.7 T ultra-compact HTS MRI scanner
Impact: We have shown tapered, unshielded gradient coils with a patient window can be designed for our HTS head-only MRI with each channel producing >39 mT/m gradient strength and >350 T/m/s slew rate with only 5 kW input power.
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368-06-016.
Actively Shielded Multi-coil Gradient Coil Design with Multi-turn and Overlapped Coils
Impact: Our method employs least-squares fitting to
calculate the currents for multiple actively shielded gradient coils. Each coil
consists of two layers with opposite currents and varying numbers of turns.
This approach simplifies the design of active shielded multi-coil gradient
systems.
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