Search Results - "Fujimura, Soichiro"

Effects of different stent wire mesh densities on hemodynamics in aneurysms of different sizes by Masuda, Shunsuke, Fujimura, Soichiro, Takao, Hiroyuki, Takeshita, Kohei, Suzuki, Takashi, Uchiyama, Yuya, Karagiozov, Kostadin, Ishibashi, Toshihiro, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Intracranial stents are used to treat aneurysms by diverting the blood flow from entering into the aneurysmal dome. Although delayed rupture is rare, clinical…”
Get full text

Computational fluid dynamics as a risk assessment tool for aneurysm rupture by Murayama, Yuichi, Fujimura, Soichiro, Suzuki, Tomoaki, Takao, Hiroyuki

“…The authors reviewed the clinical role of computational fluid dynamics (CFD) in assessing the risk of intracranial aneurysm rupture. A literature review was…”
Get full text

Rupture Risk of Small Unruptured Intracranial Aneurysms in Japanese Adults by Suzuki, Takashi, Takao, Hiroyuki, Rapaka, Saikiran, Fujimura, Soichiro, Ioan Nita, Cosmin, Uchiyama, Yuya, Ohno, Hiroshi, Otani, Katharina, Dahmani, Chihebeddine, Mihalef, Viorel, Sharma, Puneet, Mohamed, Ashraf, Redel, Thomas, Ishibashi, Toshihiro, Yamamoto, Makoto, Murayama, Yuichi

“…Background and Purpose- Therapeutic decision making for small unruptured intracranial aneurysms (<10 mm) is difficult. We aimed to develop a rupture risk model…”
Get full text

Computational modeling of braided‐stent deployment for interpreting the mechanism of stent flattening by Shiozaki, Shunya, Otani, Tomohiro, Fujimura, Soichiro, Takao, Hiroyuki, Wada, Shigeo

“…This study develops a computational model of the braided stent for interpreting the mechanism of stent flattening during deployment into curved arteries. Stent…”
Get full text

Decreased wall shear stress at high-pressure areas predicts the rupture point in ruptured intracranial aneurysms by Suzuki, Tomoaki, Stapleton, Christopher J, Koch, Matthew J, Tanaka, Kazutoshi, Fujimura, Soichiro, Suzuki, Takashi, Yanagisawa, Takeshi, Yamamoto, Makoto, Fujii, Yukihiko, Murayama, Yuichi, Patel, Aman B

“…Degenerative cerebral aneurysm walls are associated with aneurysm rupture and subarachnoid hemorrhage. Thin-walled regions (TWRs) represent fragile areas that…”
Get full text

Computational fluid dynamic analysis of the initiation of cerebral aneurysms by Fujimura, Soichiro, Tanaka, Kazutoshi, Takao, Hiroyuki, Okudaira, Takuma, Koseki, Hirokazu, Hasebe, Akiko, Suzuki, Takashi, Uchiyama, Yuya, Ishibashi, Toshihiro, Otani, Katharina, Karagiozov, Kostadin, Fukudome, Koji, Hayakawa, Motoharu, Yamamoto, Makoto, Murayama, Yuichi

“…Relationships between aneurysm initiation and hemodynamic factors remain unclear since de novo aneurysms are rarely observed. Most previous computational fluid…”
Get full text

Utility of multi-material three-dimensional print model in preoperative simulation for glioma surgery by Watanabe, Nobuyuki, Yamamoto, Yohei, Fujimura, Soichiro, Kojima, Alisonkenji, Nakamura, Aya, Watanabe, Kentaro, Ishi, Takuya, Murayama, Yuichi

“…•3D print model for glioma surgery involved plural structures with material adjustment.•Useful simulation of insertion of fence-post and resection of…”
Get full text

Hemodynamic and Morphologic Factors Related to Coil Compaction in Basilar Artery Tip Aneurysms by Ishii, Takumi, Fujimura, Soichiro, Takao, Hiroyuki, Uchiyama, Yuya, Okudaira, Takuma, Ishibashi, Toshihiro, Otani, Katharina, Karagiozov, Kostadin, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Coil compaction is directly related to the degree of cerebral aneurysmal recanalization. The degree of recanalization (DoR) was quantified by measuring the…”
Get full text

Preoperative Light Transmission Aggregometry Values Predict for Thromboembolic Complications After Stent-Assisted Coil Embolization by Kan, Issei, Ishibashi, Toshihiro, Sakuta, Kenichi, Fujimura, Soichiro, Yuki, Ichiro, Kaku, Shogo, Kodama, Tomonobu, Kato, Naoki, Nishimura, Kengo, Aoki, Ken, Sasaki, Yuichi, Karagiozov, Kostadin, Murayama, Yuichi

“…Risk control of thromboembolic complications (TECs) during stent-assisted coil embolization (SACE) for unruptured intracranial aneurysms (UIAs) is crucial for…”
Get full text

Selection of helical braided flow diverter stents based on hemodynamic performance and mechanical properties by Suzuki, Takashi, Takao, Hiroyuki, Fujimura, Soichiro, Dahmani, Chihebeddine, Ishibashi, Toshihiro, Mamori, Hiroya, Fukushima, Naoya, Yamamoto, Makoto, Murayama, Yuichi

“…Although flow diversion is a promising procedure for the treatment of aneurysms, complications have been reported and it remains poorly understood. The…”
Get more information

Extending statistical learning for aneurysm rupture assessment to Finnish and Japanese populations using morphology, hemodynamics, and patient characteristics by Detmer, Felicitas J, Hadad, Sara, Chung, Bong Jae, Mut, Fernando, Slawski, Martin, Juchler, Norman, Kurtcuoglu, Vartan, Hirsch, Sven, Bijlenga, Philippe, Uchiyama, Yuya, Fujimura, Soichiro, Yamamoto, Makoto, Murayama, Yuichi, Takao, Hiroyuki, Koivisto, Timo, Frösen, Juhana, Cebral, Juan R

“…Incidental aneurysms pose a challenge for physicians, who need to weigh the rupture risk against the risks associated with treatment and its complications. A…”
Get full text

Implementation of computer simulation to assess flow diversion treatment outcomes: systematic review and meta-analysis by Zhang, Mingzi, Tupin, Simon, Anzai, Hitomi, Kohata, Yutaro, Shojima, Masaaki, Suzuki, Kosuke, Okamoto, Yoshihiro, Tanaka, Katsuhiro, Yagi, Takanobu, Fujimura, Soichiro, Ohta, Makoto

“…Despite a decade of research into virtual stent deployment and the post-stenting aneurysmal hemodynamics, the hemodynamic factors which correlate with…”
Get more information

A new combined parameter predicts re-treatment for coil-embolized aneurysms: a computational fluid dynamics multivariable analysis study by Fujimura, Soichiro, Takao, Hiroyuki, Suzuki, Takashi, Dahmani, Chihebeddine, Ishibashi, Toshihiro, Mamori, Hiroya, Yamamoto, Makoto, Murayama, Yuichi

“…Coil embolization is a minimally invasive method used to treat cerebral aneurysms. Although this endovascular treatment has a high success rate, aneurysmal…”
Get more information

Hemodynamic Investigation of the Effectiveness of a Two Overlapping Flow Diverter Configuration for Cerebral Aneurysm Treatment by Uchiyama, Yuya, Fujimura, Soichiro, Takao, Hiroyuki, Suzuki, Takashi, Hayakawa, Motoharu, Ishibashi, Toshihiro, Karagiozov, Kostadin, Fukudome, Koji, Murayama, Yuichi, Yamamoto, Makoto

“…Flow diverters (FDs) are widely employed as endovascular treatment devices for large or wide-neck cerebral aneurysms. Occasionally, overlapped FDs are deployed…”
Get full text

Abstract Number ‐ 58: Effects of Neck Geometry on Reccurence in CFD Analysis for Aneurysms after Low VER Coiling by Uchikawa, Hayato, Takao, Hiroyuki, Fujimura, Soichiro, Kasai, Tomoki, Sunami, Shota, Yuzawa, Kazuya, Ishibashi, Toshihiro, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Introduction Although low volume embolization ratio is known as risk factor of aneurysmal recanalization, stable occlusion can be achieved in limited cases…”
Get full text

Abstract Number ‐ 130: Comparison of the Stents Length by Virtual Stent Simulation with the Actual Stent Length by Yuzawa, Kazuya, Ishibashi, Toshihiro, Takao, Hiroyuki, Fujimura, Soichiro, Sunami, Shota, Kasai, Tomoki, Uchikawa, Hayato, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Abstract only Introduction The selection of the size of a braided stent, such as the flow diverter stent, currently depends on the surgeon’s experience…”
Get full text

Abstract Number ‐ 57: Investigation on Hemodynamic Force Related to Thin‐walled Regions in Intracranial Aneurysm by Using CFD by Masuda, Kazunori, Kakizaki, Shota, Nagayama, Gota, Kato, Naoki, Takao, Hiroyuki, Fujimura, Soichiro, Sunami, Shota, Kasai, Tomoki, Yuzawa, Kazuya, Uchikawa, Hayato, Ishibashi, Toshihiro, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Introduction Although thin‐walled regions (TWRs) in an intracranial aneurysm have a risk of rupture due to contact with surgical instruments, imaging…”
Get full text

Abstract Number ‐ 56: Investigation of Aneurysmal Initiation Factor with Experimental Animal Model by Computational Fluid Dynamics Analysis by Kasai, Tomoki, Koseki, Hirokazu, Takao, Hiroyuki, Fujimura, Soichiro, Kato, Naoki, Kan, Issei, Sunami, Shota, Yuzawa, Kazuya, Uchikawa, Hayato, Ishibashi, Toshihiro, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Abstract only Introduction Hemodynamics has been reported to be involved in the pathophysiology of the initiation of intracranial aneurysms. Computational…”
Get full text

Abstract Number ‐ 59: Study on Rupture Prediction Model for Small Unruptured Cerebral Aneurysms Using Random Forest by Sunami, Shota, Takao, Hiroyuki, Fujimura, Soichiro, Kudo, Genki, Kasai, Tomoki, Yuzawa, Kazuya, Uchikawa, Hayato, Ishibashi, Toshihiro, Fukudome, Koji, Yamamoto, Makoto, Murayama, Yuichi

“…Abstract only Introduction Hemodynamic, morphological, and clinical factors have been reported to be involved in aneurysm rupture. Hemodynamic factors could be…”
Get full text

Relationships between geometrical parameters and mechanical properties for a helical braided flow diverter stent by Suzuki, Takashi, Takao, Hiroyuki, Fujimura, Soichiro, Dahmani, Chihebeddine, Ishibashi, Toshihiro, Mamori, Hiroya, Fukushima, Naoya, Murayama, Yuichi, Yamamoto, Makoto

“…Although flow diversion is a promising procedure for aneurysm treatment, the safety and efficacy of this strategy have not been sufficiently characterized…”
Get more information