A technique for improved quantitative characterization of intracranial aneurysms

Area of Science:

• Neurosurgery
• Medical Imaging
• Biomedical Engineering

Background:

• Intracranial aneurysms pose significant risks.
• Accurate characterization of aneurysm morphology is crucial for treatment planning.

Purpose of the Study:

• To develop and apply a 3D digital subtraction angiography (DSA) postprocessing method for detailed intracranial aneurysm analysis.
• To quantify parent artery involvement, neck angle, aneurysm volume, and surface area.

Main Methods:

• Importing 3D DSA data of intracranial aneurysms to a workstation.
• Reconstructing and postprocessing angiograms for morphological delineation.
• Creating 3D surface-rendered objects for clear visualization of artery, neck angle, and aneurysm.

Main Results:

• The method successfully enabled delineation of parent artery incorporation into the aneurysm ostium (neck angle).
• Quantification of aneurysm volume and surface area was achieved.
• 3D surface rendering provided clear visualization of complex vascular anatomy.

Conclusions:

• 3D DSA postprocessing offers a comprehensive approach to characterizing intracranial aneurysms.
• This technique aids in precise anatomical assessment, potentially improving treatment strategies.
• Detailed morphological analysis is vital for understanding aneurysm hemodynamics and rupture risk.