A Retrospective, Multicenter, Controlled Clinical Trail: to Evaluate the Clinical Efficiency of Intracranial Aneurysm Assistive Software in the Morphological Measurement

Inclusion criteria

• aged 18-75y, no gender limitation.
• non-ruptured intracranial saccular aneurysm with specific intracranial CTA images.
• Intracranial aneurysm was not treated.

Inclusion criteria

of images:

• the number of detector rows of Computed Tomography(CT) is more than 16 rows.
• slice thickness ≤ 0.625mm, whole-brain image is considered.
• Both plain scan sequences and enhancer sequence are required.

Exclusion criteria

• combined with cerebral hemorrhage;
• combined with cerevascular malformation or cerebral occupying lesion;
• fusiform aneurysm or dissection aneurysm;
• intracaverous internal carotid artery aneurysm;

Exclusion criteria

of images:

• none DICOM format;
• quality score less than 3 scores;
• metal artifacts existance.