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A scoring system to discriminate blood blister-like aneurysms: a multidimensional study using patient-specific model
Shanwen Chen1, Qingyuan Liu1, Baogang Ren2
1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, No.119 South 4th Ring West Road, Fengtai District, Beijing, 100070, China.
Neurosurgical Review
|January 3, 2021
Summary
A new scoring system effectively distinguishes blood blister-like aneurysms (BBAs) from other wide-necked aneurysms. This tool uses aneurysm angle, aspect ratio, and wall shear stress gradient for improved presurgical discrimination.
Area of Science:
- Neurosurgery
- Vascular Neurology
- Medical Imaging
Background:
- Blood blister-like aneurysms (BBAs) pose diagnostic challenges.
- Accurate presurgical identification of BBAs is crucial for neurosurgical planning.
Purpose of the Study:
- To investigate the distinct characteristics of BBAs.
- To develop a predictive tool for differentiating BBAs from other wide-necked aneurysms.
Main Methods:
- Retrospective review of internal carotid artery aneurysms.
- Hemodynamic analysis using patient-specific models.
- Logistic and ROC analyses to identify risk factors and assess a scoring system.
Main Results:
- Aspect ratio (AR), wall shear stress gradient (WSSG), and aneurysm angle (AA) were identified as independent risk factors for BBAs.
- A scoring system incorporating AR, WSSG, and AA demonstrated high predictive value (AUC = 0.931) for distinguishing BBAs.
Conclusions:
- A multidimensional scoring system effectively aids in discriminating BBAs from wide-necked non-BBAs.
- This tool can assist neurosurgeons in clinical decision-making for complex aneurysms.
