دورية أكاديمية
Blood flow in intracranial aneurysms treated with Pipeline embolization devices: computational simulation and verification with Doppler ultrasonography on phantom models
| العنوان: | Blood flow in intracranial aneurysms treated with Pipeline embolization devices: computational simulation and verification with Doppler ultrasonography on phantom models |
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| المؤلفون: | Anderson Chun On Tsang, Simon Sui Man Lai, Wai Choi Chung, Abraham Yik Sau Tang, Gilberto Ka Kit Leung, Alexander Kai Kei Poon, Alfred Cheuk Hang Yu, Kwok Wing Chow |
| المصدر: | Ultrasonography, Vol 34, Iss 2, Pp 98-108 (2015) |
| بيانات النشر: | Korean Society of Ultrasound in Medicine, 2015. |
| سنة النشر: | 2015 |
| المجموعة: | LCC:Medical technology |
| مصطلحات موضوعية: | Intracranial aneurysm, Endovascular procedures, Flow diverter, Printing, three-dimensional, Ultrasonography, Medical technology, R855-855.5 |
| الوصف: | Purpose: The aim of this study was to validate a computational fluid dynamics (CFD) simulation of flow-diverter treatment through Doppler ultrasonography measurements in patient-specific models of intracranial bifurcation and side-wall aneurysms. Methods: Computational and physical models of patient-specific bifurcation and sidewall aneurysms were constructed from computed tomography angiography with use of stereolithography, a three-dimensional printing technology. Flow dynamics parameters before and after flow-diverter treatment were measured with pulse-wave and color Doppler ultrasonography, and then compared with CFD simulations. Results: CFD simulations showed drastic flow reduction after flow-diverter treatment in both aneurysms. The mean volume flow rate decreased by 90% and 85% for the bifurcation aneurysm and the side-wall aneurysm, respectively. Velocity contour plots from computer simulations before and after flow diversion closely resembled the patterns obtained by color Doppler ultrasonography. Conclusion: The CFD estimation of flow reduction in aneurysms treated with a flow-diverting stent was verified by Doppler ultrasonography in patient-specific phantom models of bifurcation and side-wall aneurysms. The combination of CFD and ultrasonography may constitute a feasible and reliable technique in studying the treatment of intracranial aneurysms with flow-diverting stents. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2288-5919 2288-5943 |
| Relation: | http://www.e-ultrasonography.org/upload/usg-14063.pdf; https://doaj.org/toc/2288-5919; https://doaj.org/toc/2288-5943 |
| DOI: | 10.14366/usg.14063 |
| URL الوصول: | https://doaj.org/article/1c4078f78b5a427d9ec794f15b9aed2f |
| رقم الأكسشن: | edsdoj.1c4078f78b5a427d9ec794f15b9aed2f |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 22885919 22885943 |
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| DOI: | 10.14366/usg.14063 |