Related Experiment Video
Updated: Feb 4, 2026

Cardiac Magnetic Resonance Imaging at 7 Tesla
Published on: January 6, 2019
A method for designing birdcage coils based on a simplified magnetic field model, validated experimentally at 4 T, 7
A Villarreal1, J Lazovic2, S E Solis-Najera1
1Departamento de Fisica, Facultad de Ciencias, UNAM, Mexico City 04510, Mexico.
None:
Magnetic resonance imaging and spectroscopy rely on magnetic fields generated by radiofrequency (RF) volume coils for high-quality data acquisition. Understanding electromagnetic field behavior in these coils is key to optimizing imaging and designing advanced coils. This paper presents an alternative tool to validate experimental and simulated results from traditional bridge coils using a theoretical approach to derive the magnetic field B1 expression for a BC coil. The formula will be used for: (a) assessing RF coil performance for high-quality images with optimal SNR and accurate anatomical representation, and (b) guiding the development of BC coils for specific applications. To validate the model, phantom images were acquired at different resonant frequencies, and the results were compared with experimental data. The findings confirm the accuracy and effectiveness of the model, offering insights into electromagnetic field behavior and providing a framework for advancing RF coil design in MR imaging and MR spectroscopy.
Related Concept Videos
Experimental Designs
Magnetic Fields
A magnetic field is defined by the force that a charged particle experiences...
Magnetic Field of a Solenoid
Consider a solenoid with 100 turns wrapped around a cylinder of...
Magnetic Field Lines
Magnetic field lines follow several hard-and-fast rules:
Energy In A Magnetic Field
Take an ideal inductor with zero resistance. Although it's practically impossible, assume that the coil's resistance is so small that it is practically negligible. The loss of the field's energy to dissipate thermal energy (or heat) is thus...
Magnetic Field Of A Current Loop

