TY  - JOUR
AU  - Tsuji, Masanori
AU  - Ishida, Fujimaro
AU  - Sato, Takenori
AU  - Furukawa, Kazuhiro
AU  - Miura, Yoichi
AU  - Yasuda, Ryuta
AU  - Umeda, Yasuyuki
AU  - Toma, Naoki
AU  - Suzuki, Hidenori
PY  - 2023
TI  - Computational fluid dynamics using dual-layer porous media modeling to evaluate the hemodynamics of cerebral aneurysm treated with FRED: A technical note
JO  - Brain Hemorrhages
SN  - 2589-238X
SP  - 39
EP  - 43
VL  - 4
IS  - 1
AB  - Flow diverter (FD) implantation is increasingly performed for aneurysms that are difficult to treat with conventional endovascular therapy and direct surgery. Now, a new FD stent, the Flow-Redirection Endoluminal Device (FRED), enters into clinical practice and is expected to have higher therapeutic efficacy. To predict whether an aneurysm is completely occluded by FRED, we have developed a novel computational fluid dynamics (CFD) technique using dual-layer porous media modeling that simulates its characteristic stent strut. This technique may be useful to evaluate hemodynamic changes in an aneurysm after FRED implantation using the preoperative patient-specific aneurysm geometry. The authors describe the novel CFD technique with a dual-layer porous media and report the potential usefulness of the technique to predict the aneurysm-occlusion status after FRED implantation preoperatively using an illustrative case of an unruptured internal carotid artery anterior wall aneurysm.
UR  - https://doi.org/10.1016/j.hest.2022.05.007
DO  - 10.1016/j.hest.2022.05.007