Golden-Angle Radial MRI: Basics, Advances, and Applications

Area of Science:

• Medical Imaging
• Physics

Background:

• Golden-angle radial sampling is increasingly used in magnetic resonance imaging (MRI).
• A comprehensive review is needed to consolidate knowledge on its principles, benefits, and challenges.
• Existing literature lacks a unified overview for both clinical and research applications.

Purpose of the Study:

• To provide a comprehensive review of golden-angle radial MRI sampling.
• To cover fundamental concepts, advanced trajectories, and practical applications.
• To offer guidance for implementing golden-angle radial techniques in MRI studies.

Main Methods:

• Review of existing literature on golden-angle radial sampling in MRI.
• Categorization of golden-angle radial trajectories (e.g., tiny golden-angle, stack-of-stars, 3D kooshball).
• Discussion of advantages, limitations, and potential solutions for each trajectory type.

Main Results:

• Detailed explanation of the golden angle and its utility in MRI.
• Overview of advanced golden-angle radial trajectories and their specific applications.
• Identification of MRI applications benefiting from this sampling method.

Conclusions:

• Golden-angle radial sampling offers significant advantages for MRI research and clinical practice.
• Understanding its diverse trajectories and limitations is crucial for optimal implementation.
• This review serves as a valuable resource for advancing MRI techniques.