Vessel wall imaging in intracranial aneurysms.

Area of Science:

• Neurology
• Radiology
• Medical Imaging

Background:

• Unruptured brain aneurysms pose a risk, necessitating methods for assessing instability.
• High-resolution vessel wall imaging (HR-VWI) shows promise for characterizing these aneurysms.
• Clinical validation of HR-VWI for brain aneurysms is currently lacking.

Purpose of the Study:

• To review the current evidence on high-resolution vessel wall imaging (HR-VWI) techniques for brain aneurysm characterization.
• To describe specific HR-VWI approaches used in assessing aneurysm wall features.

Main Methods:

• Review of existing literature on HR-VWI for brain aneurysms.
• Detailed description of techniques including aneurysm wall contrast enhancement.
• Explanation of MRI-quantitative susceptibility mapping and 7T MRI applications.

Main Results:

• HR-VWI is emerging as a valuable tool for identifying unstable unruptured brain aneurysms.
• Specific imaging techniques offer detailed insights into aneurysm wall characteristics.
• Further validation is required for widespread clinical adoption.

Conclusions:

• HR-VWI techniques show significant potential in the characterization of brain aneurysms.
• Advanced imaging methods like QSM and 7T MRI contribute to detailed analysis.
• Clinical validation is crucial for integrating HR-VWI into routine practice.