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Designing Radial Trajectories for MRI Experiments
The aim of this work is to design trajectories in encoding space for radial MRI that will enable to modify certain image features in a desired way.
Motivation:
Magnetic resonance imaging (MRI) techniques with radial trajectories in the encoding space offer various beneficial properties, e.g. the ability to image tissues with very fast signal relaxation. Some of their properties depend on the specific way the radial path is executed. The aim of this work will be to design radial trajectories that should enable to modify certain image features in a desired way.
Methods:
Three-dimensional centre-out trajectories will be designed within various constrains, such as density in encoding space, angular distance of successive spokes, and the size of spoke packages.
Tasks:
- Get familiar with the principles of radial MRI
- Formulate the desired constraints
- Develop an algorithm that creates a radial trajectory taking into account the constrains
- Implement the trajectory on the MR scanner (optional)
- Test the desired effects on image properties (optional)
Type of work:
Semester project (1 student): 20% Theory, 80% Simulations;
Master project (1 student): 10% Theory, 70% Simulations, 20% Measurements
Motivation: Magnetic resonance imaging (MRI) techniques with radial trajectories in the encoding space offer various beneficial properties, e.g. the ability to image tissues with very fast signal relaxation. Some of their properties depend on the specific way the radial path is executed. The aim of this work will be to design radial trajectories that should enable to modify certain image features in a desired way.
Methods: Three-dimensional centre-out trajectories will be designed within various constrains, such as density in encoding space, angular distance of successive spokes, and the size of spoke packages.
Tasks: - Get familiar with the principles of radial MRI - Formulate the desired constraints - Develop an algorithm that creates a radial trajectory taking into account the constrains - Implement the trajectory on the MR scanner (optional) - Test the desired effects on image properties (optional)
A MATLAB tool designing radial trajectories is created taking into account the desired properties. It will be used to define the MRI sequence on a human scanner.
A MATLAB tool designing radial trajectories is created taking into account the desired properties. It will be used to define the MRI sequence on a human scanner.