Cape Town - 2026 ISMRM-ISMRT Annual Meeting and Exhibition

RF Coils

Flash Presentation

Physics & Engineering

Thursday, 14 May 2026

Roof Terrace

08:30 - 10:06

Moderators: Christopher Collins & Jana Vincent

Session Number: 631-01

No CME/CE Credit

Similar Sessions

RF coils and their components remain a key focus of innovation in our community.

Skill Level: Intermediate

08:30		631-01-001. Dual-Frequency Receive-Only Coil with Double Tuned and Double Matched Circuit Karthik Lakshmanan, Ryan Brown Bernard and Irene Schwartz Center for Biomedical Imaging, Department of Radiology, New York University Grossman School of Medicine, New York, New York, United States of America Impact: This dual-frequency receive-only coil design may enable dense arrangements that have been challenging to implement with traditional sparse dual-frequency designs, potentially improving multi-nuclear MRI SNR through closer tissue positioning while maintaining reasonable losses.
08:32		631-01-002. Microstriplines or fractionated dipoles? An In-Vivo Image Comparison of Two Transmit/Receive Body Arrays in the Lower Abdomen Quincy van Houtum, Oliver Kraff, Harald Quick, Markus May, Tom Scheenen Erwin L. Hahn Institute for MRI, University Duisburg-Essen, Essen, Germany Impact: Both RF coil arrays enabled homogeneous large-FOV pTx MRI with adequate efficiency. The micro-striplines provided higher B₁⁺ performance, while the fractionated dipoles offered superior SNR and comfort. Both coils are suitable for lower-abdominal imaging applications.
08:34		631-01-003. Quantification of Modeling Uncertainty for 7T Multi-Channel Transmit Arrays through Simulation–Measurement B1 Matching Ettore Flavio Meliado, Carel van Leeuwen, Ali Anjum, Andrew Fagan, Martino Borgo, Catalina Arteaga Tesla Dynamic Coils BV, Zaltbommel, Netherlands Impact: This approach refines simulation-to-measurement agreement, ensures consistent scaling of SAR Virtual Observation Points and power limits, and enables robust quantification of modeling uncertainty, thereby enhancing the accuracy and efficiency of RF safety evaluation for 7T multi-channel transmit systems.
08:36		631-01-004. The STASIS open source RF exposure system for parallel transmission and implant safety testing Stephan Orzada, Lukas Winter, Frank Seifert, Mark Ladd German Cancer Research Center (DKFZ), Heidelberg, Germany Impact: This work presents an open source multi-channel RF exposure system that can be used for implant testing. The system is easy to use and low cost, simplifying RF exposure testing.
08:38		631-01-005. Comparing Inter-Coil Coupling between ADAPT and Resonant Transmit coils at 7T Charlie Reeder, Victor Han, Folk Narongrit, Chunlei Liu University of California, Berkeley, United States of America Impact: An array of ADAPT coils maintains transmit efficiency and low coupling as the distance between coils is swept, removing the need for decoupling networks — establishing a foundation for geometry-agnostic arrays focused on B₁ shimming and SAR optimization at 7T.
08:40		631-01-006. Cancellation of 0.5T body Tx coil radiation using bore-mounted cancellation arrays for Faraday-shielding free operation Ehsan Kazemivalipour, Bastien Guerin, Lawrence Wald Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States of America Impact: Enabling Faraday-shielding free MRI at 0.5T through transmit-radiation cancellation could lower installation costs, reducing the barriers to siting a scanner in underserved settings and expanding MRI accessibility.
08:42		631-01-007. Multi-channel Coil Array with Optical Data Transmission using Wavelength Division Multiplexing Zining Liu, Morteza Teymoori, Jakob Gerlach, Reza Aghabagheri, Caglar Ataman, Michael Bock, Ali Özen University Medical Center Freiburg, Freiburg, Germany Impact: Light-weight, flexible, and modular coil elements using optical wavelength-division multiplexing for data and power transmission enable extremely dense coil arrays. This work demonstrates the feasibility of the Light Coils concept on a 4-channel prototype in a clinical 3T MRI system.
08:44		631-01-008. Light-powered low noise amplifiers for MRI Reza Aghabagheri, Jakob Gerlach, Zining Liu, Morteza Teymoori, Caglar Ataman, Michael Bock, Ali Özen University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany Impact: An efficient low-power low-noise amplifier is a critical component for enabling a fully optical receive chain. We achieved a fivefold reduction in LNA power consumption while preserving signal quality and noise performance comparable to conventional MRI preamplifiers.
08:46		631-01-009. A Tuneable Patch Antenna for 7T MRI Body Imaging: Design, Simulation and Experimental Validation Thejas Vishnu Ramesh, Ehsan Kazemivalipour, Lawrence Wald Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States of America Impact: Our findings suggest that a sliding dielectric tuning device can extend transmit efficiency over considerable load variations, potentially facilitating clinical 7T body imaging by enabling a versatile “behind the bore-tube” RF Tx array.
08:48		631-01-010. In Vivo Measurement of Gradient-Induced Electric Fields Using a Surface Dipole Probe and a Z-Gradient Array Coil Metin Can Işık, Sadeq Alsharafi, Ege Aydın, Ergin Atalar Bilkent University, Ankara, Turkey Impact: The proposed electric-field measurement method validates the simulation results of the gradient-array system. It demonstrates in vivo measurements of the theoretical advantages of the gradient array structure in minimizing and controlling the stimulated surface electric field.
08:50		631-01-011. Exploiting the microwave regime with transmission lines: High-impedance dipoles and Marchand baluns for 11.7T brain MRI Paul-François Gapais, Michel Luong, Eric Giacomini, Franck Mauconduit, Vincent Gras, Alexis Amadon University of Paris-Saclay, CEA, CNRS, BAOBAB, NeuroSpin, Gif-sur-Yvette, France Impact: We introduce a new kind of resonator: the high-impedance dipole (HID). Paired with a transmission line balun, it minimizes the number of lumped elements in the array and thus simplifies the integration process.
08:52		631-01-012. From Probes to Reflections: Optimizing Preamplifier Decoupling in High-Density MRI Arrays Manisha Shrestha, Mirsad Mahmutovic, Maren Kaiser, Sam-Luca J.D. Hansen, Harald Möller, Boris Keil University of Applied Sciences Mittelhessen (THM), Giessen, Germany Impact: Improved preamplifier decoupling using S₁₁optimization reduces noise correlation and enhances imaging efficiency, supporting faster, higher-resolution MRI. It provides a practical framework for coil optimization that will inform future MRI hardware design and accelerate advanced neuroimaging and clinical applications.
08:54		631-01-013. A High-Impedance Flexible Coil Design with Integrated Miniaturized RF Front-End at 10.5T Yixiang Huang, Matt Waks, Russell Lagore, Thomas Mercer, Kamil Ugurbil, Gregor Adriany, Alireza Sadeghi-Tarakameh Center for Magnetic Resonance Research (CMRR), Minneapolis, United States of America Impact: At UHF, high-impedance flexible coil technology eliminates the need for loop overlapping and preamplifier decoupling, simplifying array construction while maintaining high SNR and low noise correlation. Its easy implementation and strong performance pave the way for future flexible array development.
08:56		631-01-014. Wearable Flexible Near-Field Coupling Array (NFCA): Substantial SNR Enhancement for Deuterium(2H) MR Spectroscopic Imaging Di Wu, Maofan Li, Wei Cao, Shaojia Xie, Shang Gao, Kangjian Huang, Guoming Chen, Chao Zou, Xing Yang, Ye Li National Innovation Center for Advanced Medical Devices, shenzhen, China Impact: A wearable, cable-free ²H NFCA enhances in-vivo ²H SNR while maintaining ¹H functionality, lowering hardware barriers for multinuclear metabolic imaging and supporting translation of DMS/DMI protocols on clinical 3 T systems.
08:58		631-01-015. Comparative analysis of bore-tube integrated 7T body pTx coils: transmit efficiency, SAR, and load robustness Ehsan Kazemivalipour, Jason Stockmann, John Drago, Lawrence Wald Athinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Charlestown, United States of America Impact: Our findings showed that the patch pTx array with optimized-trajectory tailored pulses improved transmit efficiency and load robustness while maintaining SAR safety, suggesting a promising path toward clinical-grade bore-tube integrated 7T body imaging.
09:00		631-01-016. A Flexible Metamaterial-inspired Coil for Enhanced Thyroid MRI: Improved Image Quality and Characterization of Nodules Yakui Wang, Zhuozhao Zheng Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China Impact: Conventional head and neck coils provide inadequate thyroid image quality for clinical use. Our metamaterial-inspired wireless resonator enables high-resolution T2WI and high b-value DWI at 1.5T, improving differentiation of benign and malignant thyroid nodules.
09:02		631-01-017. The effect of balanced matching network on SNR performance of a low-field portable MRI system across operating environments Chloe Najac, Beatrice Lena, Tom O'Reilly, Andrew Webb C.J. Gorter MRI Center, Department of Radiology, Leiden University Medical Center, Leiden, Netherlands Impact: Balancing the RF matching network even at low frequencies provides an effective, simple strategy to improve image quality in portable low-field MRI. This approach reduces reliance on cumbersome shielding, simplifying system design and enabling accessible point-of-care imaging in diverse environments.