Vessel Wall MRI: clinical implementation in cerebrovascular disorders-technical aspects

Area of Science:

• Medical Imaging
• Neuroimaging
• Cardiovascular Imaging

Background:

• Vessel Wall Magnetic Resonance Imaging (VW-MRI) is an advanced technique for diagnosing and managing cerebrovascular diseases.
• Current VW-MRI applications are not yet routine, but its significance in patient care is increasingly recognized.
• A lack of commercially available, optimized intracranial VW-MRI sequences necessitates the development of specialized techniques.

Purpose of the Study:

• To present the technical parameters of a novel Vessel Wall MRI sequence specifically designed for intracranial applications.
• To address the critical requirements of suppressing both blood in the vessel lumen and cerebrospinal fluid in the surrounding space.
• To share insights gained from a 3-year development experience with this specialized MR sequence.

Main Methods:

• Utilized Spin Echo (SE) sequences, identified as effective for intracranial imaging.
• Developed and refined specific techniques to achieve simultaneous suppression of blood and cerebrospinal fluid.
• Focused on optimizing technical parameters for high-quality intracranial VW-MRI.

Main Results:

• The developed sequence effectively suppresses blood within the vessel lumen.
• The sequence successfully suppresses the cerebrospinal fluid, enhancing vessel wall visualization.
• Detailed technical parameters for the optimized intracranial VW-MRI sequence are provided.

Conclusions:

• The presented Spin Echo-based VW-MRI sequence offers a viable solution for intracranial imaging.
• This technique is crucial for accurate diagnosis, characterization, and treatment planning of cerebrovascular diseases.
• The optimized sequence overcomes key technical challenges, paving the way for broader clinical application.