尺寸
囊状动脉瘤
多孔性
选择(遗传算法)
计算机科学
生物医学工程
材料科学
动脉瘤
模拟
放射科
人工智能
复合材料
医学
化学
有机化学
作者
Romina Muñoz,Ana Paula Narata,Laura Obradó,Héctor Fernández,Ignacio Larrabide
标识
DOI:10.1016/j.compbiomed.2022.105744
摘要
Intra-saccular devices (ID) are novel braided devices used for complex intracranial aneurysms treatment. Treatment success is associated with correct device size selection. A technique that predicts the ID size within the aneurysm before intervention will provide a powerful computational tool to aid the interventionist during device selection. We present a method to calculate the device's final height, radial expansion and porosity within the patient's anatomy, which allows assessing different device sizes before treatment takes place. The proposed sizing technique was tested in-vitro and in real patient's geometries obtained from 3DRA angiographic images of 8 unruptured aneurysms previously treated with IDs. The obtained simulated height was compared to the real height, with a mean error of less than 0.28 mm (±0.44). The porosity calculation method was tested in-vitro with an error of 0.02 (±0.022). The results of both sizing and porosity experiments resemble well measures from real patients. This methodology could be used before treatment to provide the interventionist with additional information that allows selecting the device that best fits the patient's aneurysm to be treated.
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