Novel MRI Hardware
Digital Poster
Physics & Engineering
Monday, 11 May 2026
Novel hardware which can be integrated to the MRI system
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368-04-001.
Analysis of GaN FET output current inside ultra-high Magnetic Fields
Impact: The
presented results confirm the feasibility of implementing the on-coil amplifier
technology using GaN FET devices in MRI systems with field
strengths up to 14 T.
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368-04-002.
Experimental Quantification and Simulation of RF Emissions in a 1.5 T Shield-Free Compact MRI
Impact: Experimental measurements characterize RF emission from an unshielded 1.5
T compact MRI system, confirming body-radiating effects, demonstrating the
influence of aperture configuration, and supporting the development of
practical mitigation strategies for RF emission-compliant MRI systems.
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368-04-003.
Effect of Longer Leadwire Length on RF-Induced Heating in Multi-Leadwire EEG Arrays
Impact: RF-induced heating risks for external devices during
MRI are poorly understood as compared to implants. Longer leadwire lengths of devices like EEG-electrodes can significantly increase heating, potentially burning patients.
Clinical vigilance regarding leadwire length is essential for patient
safety.
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368-04-004.
An Open-Source RF Coil Mixed Contact Connector for Low-cost MRI
Impact: RF coil connectors can be built inexpensively (approximately 30 USD) and are viable replacements for costly proprietary connectors. The designed mixed contact connector readily allows modifications to develop additional versions for all types of RF coils and requirements.
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368-04-005.
A soft clock synchronization method in controlled motion for in-bore wireless communications
Impact: A soft clock synchronization method can identify a motion-associated
phase shift to within a few centimeters, even in the presence of offset
distortions caused by out-of-sync clock operations - a necessary step toward
wireless MRI coil arrays
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368-04-006.
Coil-Integrated Digital RF Amplifier on a 9 cm² Footprint for MRI Scanners
Impact: To replace the inefficient RF-transmit
amplifiers used in conventional MRI systems, we designed a coil-integrated amplifier that is scalable and compact (<9 cm²) with the amplifier size significantly smaller than the coil.
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368-04-007.
Employing Image Artifacts as an Indicator to Assess the Validity of MRI RF Labeling for Passive Implants at 1.5T
Impact: Image
artifacts can potentially serve as a practical indicator for defining inter-implant
distances for MR labeling validity.
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368-04-008.
Benchtop Interface for RF Coils with Frequency Multiplexing Architecture
Impact: This benchtop interface enables systematic development and
validation of custom RF coils for Siemens “Tim 4G” systems, accelerating coil
innovation that can improve MRI signal quality and imaging capabilities.
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368-04-009.
Cylindrical Metasurface for Efficient Travelling-wave MRI at 7T
Impact: Proposed metasurface can be used to improve Tx-efficiency for
research and clinical tasks in travelling-wave MRI systems. Integrating the
proposed cylindrical metasurface is offering a method to improved image quality
in 7T MRI using only a single channel clinical mode.
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368-04-010.
Capturing the Transient Response of an Ultra-High Performance Gradient Coil at 7T
Impact: Ultra-high performance gradient coils such as MAGNUS (1) or Impulse (2) can display transient behavior beyond eddy currents that can impact imaging performance. The method presented here provides a way to characterize these transients informing the design of compensation schemes.
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368-04-011.
How many Tx power or Flip angles are required to passively detuning the wireless resonator?
Impact: This study quantifies the flip-angle threshold required for reliable passive detuning, providing a new framework to evaluate and optimize wireless resonator safety and performance across MRI field strengths.
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368-04-012.
Open-Source Shimming of a Low-Field Halbach Array MRI Scanner
Impact:
This abstract presents the application of the open-source OSI² shimming workflow to a Halbach-array low-field MRI system. Using this approach B₀ inhomogeneity was significantly reduced, showing that open-source tools can meaningfully upgrade portable MRI in resource-limited settings. |
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368-04-013.
Acoustic noise characterization of a compact 7T head-only MRI scanner
Impact:
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368-04-014.
Modular Low-Cost 3D Magnetic Field Mapper Robot
Impact: This work introduces an open-source, low-cost 3D magnetic field mapper enabling precise, automated characterization of low-field MRI magnets. By reducing complexity and cost, it makes field mapping accessible to emerging laboratories, supporting reproducible scanner development across all resource settings.
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368-04-015.
Optimizing Multi-coil Gradient Coil by Using Varied-radius Loops and Discrete Current Levels
Impact: Our design for a varied-radius, discrete
current-level, and multi-coil gradient system reduced nonlinearity and power
dissipation when compared with traditional single-radius multi-coil gradient
designs. Additionally, this new design simplifies construction compared with
both conventional gradient systems and single-radius multi-coil designs.
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368-04-016.
A low-cost motion sensing pad for mock scanners – design, construction and initial evaluation in pediatric brain MRI
Impact: An economical and non-obstructive device is
presented to monitor and record head movements during mock scanner experiments.
The device can be used for real time training and feedback to reduce participant
motion in the MRI scans.
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