This project proposes to establish a prospective cohort of MIA based on a preexisting multicenter MIA database and to combine multidimensional methods such as high-resolution magnetic resonance, hemodynamics, ambulatory blood pressure, and imaging histology to study aneurysm instability.
Age 18-80 years old, male or infertile female;
Diagnosed as IA (intracranial aneurysm) through CTA, MRA, or DSA; And it is suitable for endovascular intervention treatment
The patient and/or their legal representative or guardian fully understand the research purpose, voluntarily participate and sign informed consent Books;
Patients willing to cooperate with high-resolution magnetic resonance imaging.
AVM (arteriovenous malformation), Moyamoya disease, or DAVF (dural arteriovenous fistula) related aneurysms;
Patients with contraindications for high-resolution magnetic resonance imaging;
Participants in clinical trials of other drugs or medical devices;
Patients with severe underlying diseases and extremely poor clinical conditions who cannot tolerate general anesthesia surgery;
Inclusion Criteria: 1\. be older than 18 years of age; 2. complete a high-resolution magnetic resonance exam Exclusion Criteria: 1\. aneurysm combined with other cerebrovascular diseases; 2. substandard image quality
Cohort
Prospective
Not listed
High resolution MRI aneurysm features
Enhancement grade was defined as follows: grade 0 for none enhancement, grade 1 for focal enhancement, involved the neck, the intermediate portion, the dome, or a bleb;grade 2 for thin annular enhancement (maximum thickness≤1 mm) , grade 3 for thick annular enhancement(maximum thickness\>1 mm) .
postoperative mRS score
MRS score definition: The MRS score, also known as the Modified Rankin Scale, is a scale used to evaluate the neurological recovery status of stroke patients. It is divided into seven levels, Level 0: completely asymptomatic. Level 1: Despite symptoms, without obvious disabilities, able to complete all frequently engaged work and activities. Level 2: Mild disability, unable to complete all work and activities, but able to handle personal affairs without the need for assistance from others. Level 3: Moderate disability, requiring assistance from others to walking without assistance. Level 4: Severe disability, unable to walk without the help of others, unable to take care of one's own needs. Level 5: Severe disability, bedridden, urinary and fecal incontinence, requiring continuous care, and requiring multiple 24-hour care from others. Level 6: Death. The higher the mRS score, the worse the patient's prognosis.
postoperative aneurysm occlusion rate
Raymond classification, grade I: complete embolism; Grade II: residual aneurysm neck;
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