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Gradient coil design: a review of methods

¹Laboratory of Cardiac Energetics, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892.

Magnetic Resonance Imaging

|January 1, 1993

Summary

This study explores magnetic resonance imaging (MRI) gradient coil design methods, analyzing discrete wire and current density techniques. It summarizes optimization strategies like target field and power minimization for improved MRI performance.

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Area of Science:

Engineering
Medical Imaging
Physics

Background:

Gradient coils are essential components in Magnetic Resonance Imaging (MRI) systems.
Achieving optimal gradient coil performance involves balancing conflicting design requirements.

Purpose of the Study:

To discuss and analyze various coil design methods for MRI gradient coils.
To classify and evaluate different design techniques, including discrete wire and current density approaches.
To summarize key optimization strategies for gradient coil design.

Main Methods:

Classification of design methods into discrete wire and current density techniques.
Analysis of the advantages and disadvantages of each method.
Summary of optimization techniques such as the target field approach, constrained inductance, and power minimization.
Discussion of design strategies for minimizing fringe fields, including active shielding.

Main Results:

Gradient coil design involves trade-offs between various performance parameters.
Discrete wire and current density techniques offer different advantages and limitations.
Optimization methods provide pathways to enhance coil performance and minimize undesirable effects like fringe fields.

Conclusions:

Effective MRI gradient coil design requires careful consideration of conflicting requirements.
A range of design and optimization methods are available to achieve desired performance characteristics.
Minimizing fringe fields through techniques like active shielding is crucial for advanced MRI applications.

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