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Related Experiment Video

Updated: Jul 5, 2026

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

Published on: March 8, 2020

Towards a complete coil array.

Zhiyue J Wang¹

¹Edward B. Singleton Department of Diagnostic Imaging, Texas Children's Hospital, Houston, TX 77030, USA. zjwang@bcm.tmc.edu

Magnetic Resonance Imaging

|April 29, 2008

Summary

This summary is machine-generated.

Researchers simulated radio frequency (RF) coil systems for MRI, demonstrating that composite coil arrays can approximate a complete system. This approximation enables generation of essential magnetic vector fields for improved MRI performance.

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Design, Instrumentation and Usage Protocols for Distributed In Situ Thermal Hot Spots Monitoring in Electric Coils using FBG Sensor Multiplexing

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Published on: January 16, 2021

Area of Science:

Magnetic Resonance Imaging (MRI)
Electromagnetism
Coil Engineering

Background:

A complete radio frequency (RF) coil system can generate any steady-state RF field compatible with Maxwell's equations.
Completeness implies generating all basis vector fields in the multipole expansion.
Complete coil systems offer potential for ultimate intrinsic signal-to-noise ratio (SNR) in MRI receivers and flexibility in excitation.

Purpose of the Study:

To investigate the feasibility of approximating a complete RF coil system using array coils with composite elements.
To demonstrate the capability of such approximated systems in generating fundamental electromagnetic fields for MRI applications.

Main Methods:

Computer simulations were performed on array coils composed of composite elements.
Current loops were approximated as magnetic dipoles, assuming small loop sizes.
The ability to generate basis magnetic vector fields up to certain multipole orders was analyzed.

Main Results:

Demonstrated that a coil array can be configured to approximate a truncated complete array coil.
Showcased the generation of basis magnetic vector fields up to specific orders in the multipole expansion.
Validated the potential of composite coil elements in achieving near-complete RF field generation.

Conclusions:

Coil arrays with composite elements can effectively approximate complete RF coil systems.
This approximation allows for the generation of essential magnetic vector fields, crucial for advanced MRI.
The findings suggest a pathway towards enhanced MRI performance through engineered coil designs.