Droplet simulation for cerebral aneurysm embolization

Takuya Natsume; Masamichi Oishi; Nobuhiko Mukai; Marie Oshima

doi:10.1117/12.2521428

22 March 2019 Droplet simulation for cerebral aneurysm embolization

Takuya Natsume, Masamichi Oishi, Nobuhiko Mukai, Marie Oshima

Proceedings Volume 11049, International Workshop on Advanced Image Technology (IWAIT) 2019; 110492R (2019) https://doi.org/10.1117/12.2521428
Event: 2019 Joint International Workshop on Advanced Image Technology (IWAIT) and International Forum on Medical Imaging in Asia (IFMIA), 2019, Singapore, Singapore

Abstract

To prevent subarachnoid hemorrhage that causes serious damage to the brain, clipping and coil embolization are used in Japan, while liquid embolization is also used in overseas. Liquid embolization is an effective technique that can treat with a distorted and enormous cerebral aneurysm. However, it is not authorized yet in Japan because the embolic material flows out of the aneurysm, and embolizes normal blood vessels too. Then, as a preliminary simulation to verify the safety of liquid embolization surgery, we have been developing a particle-based high precision liquid injection simulation with CFD (Computational Fluid Dynamics), and have verified the accuracy by comparison between the simulation results with the corresponding physical experiments. The simulation size, however, was smaller than the physical experiment, since larger size simulation needs huge amount of memory, which cannot be treated with a normal PC. As the result of the simulation, a droplet was formed, but contacted the side surface of the water tank that imitated an aneurysm, and the quantitative assessment could not be performed. Therefore, this paper describes the simulation result with a larger size of environment, and the quantitative assessment by comparison of the aspect ratio of the droplet between the simulation and the physical experiment. In the assessment, we have confirmed that the shape of the droplet formed in the simulation is similar to the one of the physical experiment.

Citation Download Citation

Takuya Natsume, Masamichi Oishi, Nobuhiko Mukai, and Marie Oshima "Droplet simulation for cerebral aneurysm embolization", Proc. SPIE 11049, International Workshop on Advanced Image Technology (IWAIT) 2019, 110492R (22 March 2019); https://doi.org/10.1117/12.2521428

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available