All Things RF
Digital Poster
Physics & Engineering
Monday, 11 May 2026
New developments in RF technology, including RF coils and other elements in the receive chain
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368-05-001.
Adaptive Flexible Metasurface for Passive B1 Shimming in 3T Body Imaging
Impact: The proposed adaptive metasurface
can be seamlessly integrated into a clinical body matrix coil, enhancing B1+
field amplitude and homogeneity when activated, while preserving the original
distribution when deactivated, thus enabling controllable and safe improvement
of image quality.
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368-05-002.
Measuring B1+ distortion of metallic implants: Analysis of Magnitude- and Phase-Based Methods under strong B0-inhomogeneities
Impact: Due to large $B_0$-related artifacts, magnitude-based $B_1^+$ methods are unreliable near cardiac implants. Our results show that phase-based Bloch-Siegert maps are less affected by these artifacts, uncovering substantial, localized field enhancement around implants.
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368-05-003.
B0 and B1 field tracking for continuous wearable MRI
Impact: We demonstrate that a Hall effect probe can be used to measure the orientation of a coil's $B_1$ field in a background $B_0$ field to predict signal evolution at two coil orientations. This represents a step towards continuous, wearable MRI.
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368-05-004.
Revisiting Wireless/Passive Coils in MRI: Mitigating Over-Coupling with Modern Preamplifiers
Impact: This study lays the foundation for understanding how state-of-the-art low-impedance and matching-robust preamplifiers enable Larmor-frequency–tuned wireless coils to operate in conjunction with local receive coils, thereby advancing the design and application of inductively coupled wireless MRI coil arrays.
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368-05-005.
Does Brain Geometry Deform Under Strong Magnetic Fields During MRI? Comparison of Ultra-low-field and High-field Imaging
Impact: This study reports CSF ventricle size differences between 0.055T and 3T structural brain MRI in human subjects, suggesting brain deformation during 3T MRI and prompt future investigations of biophysical interaction between living brains and strong static magnetic field.
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368-05-006.
Cost-Effective Micro-Imaging Probe for MR Microscopy at 15.2 Tesla
Impact: This flexible probe offers
a cost-effective alternative for performing micro-imaging with horizontal bore
systems, enabling high-resolution tissue imaging without expensive specialized
equipment.
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368-05-007.
First in-vivo quantification of human brain potassium at 7T using a custom-built ³⁹K/¹H head coil
Impact: First in-vivo quantification of brain potassium at 7T is demonstrated
using a custom-built 39K/1H coil. This enables assessment
of ionic homeostasis, membrane integrity, and tissue viability in humans, providing
a non-invasive biomarker for pathology including neurodegeneration, stroke, and
brain tumours.
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368-05-008.
A Long-bore Two-dimensional Ladder Network Resonator for Whole-body MRI
Impact: This work validates the 2D ladder network method for body coil design, which
is potentially applicable to ultrahigh-field strength. The body coil has considerable flexibility in extending its size for whole-body MRI if larger FOV magnets become available.
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368-05-009.
Inverted Cascode LNA With Low Input Impedance for Low-field MRI Applications
Impact: An affordable low-input impedance LNA design compatible with preamplifier decoupling techniques for ultra-low field MRI systems.
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368-05-010.
Two-layer Inductively Coupled Receive Head Array for Image SNR Improvement at 3T
Impact: Two-layer inductively coupled Rx array exhibits markedly signal enhancement over the existing single-layer Rx array. The two-layer layout of outer receive phased array and inner inductively coupled array will boost image SNR to higher level and render MRI image brighter.
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368-05-011.
High-resolution Dental MRI using Wireless Intraoral Coil Arrays
Impact: Wireless intraoral
coil arrays enable MRI of sub-millimeter dental structures, while increasing
the spatial coverage in the oral cavity. Compared to single-loop wireless coils,
a more homogeneous receive sensitivity can be achieved.
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368-05-012.
Conformal, Wearable 1.5T Head Coil for Female Glymphatic Imaging
Impact: This
1.5T 32-channel female head coil improves upon rigid designs with a soft,
conformal fit that enhances patient comfort and image quality - especially at
high accelerations. This enables faster scans while its lightweight,
single-piece design streamlines technologist workflow.
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368-05-013.
An 8-element Bilateral Loop/Butterfly Hybrid Receiver Coil for Rat Knee Imaging at 7T
Impact: Our 8-element bilateral loop/butterfly coil enables simultaneous high-quality imaging of both rat knees at 7T, doubling experimental throughput to enable contralateral comparison critical for musculoskeletal disease modeling studies.
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368-05-014.
A cube pickup coil sensor for motion detection
Impact: The small cube sensor (9.5 mm between faces) provides a versatile tool for unbiased probing the MRI scanners gradient fields, which is crucial for accurate motion correction.
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368-05-015.
Performance evaluation of receive arrays with respect to the ultimate intrinsic SNR for 14 T head imaging
Impact: Dipole antennas,
with their increased penetration depth compared to the standard loop coil,
could be the receive element of choice for 14T head MRI.
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368-05-016.
Wideband Preamplifier for Simultaneous Multinuclear Imaging
Impact: With
the advent of programmable MRI coils, MRI receive coils will be wideband
to cover multiple frequencies at the same time. Wideband preamplifiers will be crucial for multinuclear imaging, instead of
relying on a set of discrete narrowband preamplifiers.
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