A steady flow analsys on a cerebral aneurysm model with several stents for new stent design using PIV

2012 ◽  
Vol 26 (5) ◽  
pp. 1333-1340 ◽  
Author(s):  
Chang-Ho Yu ◽  
Kaoru Matsumoto ◽  
Shuya Shida ◽  
Dong Joon Kim ◽  
Makoto Ohta
Keyword(s):  
Steady Flow ◽  
Cerebral Aneurysm ◽  
Stent Design ◽  
Aneurysm Model

PIV Measured Hemodynamic Study With Several Stents in a Cerebral Aneurysm Model for New Stent Design

2011 ◽  
Author(s):  
Chang-Ho Yu ◽  
Shuya Shida ◽  
Kaoru Matsumoto ◽  
Makoto Ohta
Keyword(s):  
Particle Image Velocimetry ◽  
Flow Pattern ◽  
Cerebral Aneurysm ◽  
Particle Image ◽  
Stent Design ◽  
Coagulation Mechanism ◽  
Image Velocimetry ◽  
Hemodynamic Study ◽  
Aneurysm Model

The rupture of an aneurysm can lead to a subarachnoid hemorrhage, which can be a fatal illness in a large percentage of cases. In treating aneurysm intravascular stenting is thought as a better option compared with clipping treatment. The treatment of cerebral aneurysm with a porous stent also has recently proposed as a minimally invasive way to prevent rupture and favor coagulation mechanism inside aneurysm. The analysis of a flow pattern with and without stent in cerebral aneurysm model was performed with Particle Image Velocimetry (PIV). Three types of stents were used in the present investigation and the porosity of stent 1, 2 and 3 is 80%, 74% and 64%, respectively. Reduced velocity, smaller average vorticity magnitude and different flow patterns inside aneurysm are observed when the three different proposed stents are used. The stent 3 (Porosity = 64%) decrease the magnitude of the velocity by 98% and change the flow pattern in the aneurysm. Our results show that not only the role of the porosity but also the stent shape affect the flow and help us understand the characteristic of stent designs.

Simplified experimental cerebral aneurysm model in rats: Comprehensive evaluation of induced aneurysms and arterial changes in the circle of Willis

2009 ◽  
Vol 1300 ◽  
pp. 159-168 ◽  
Author(s):  
Hany Eldawoody ◽  
Hiroaki Shimizu ◽  
Naoto Kimura ◽  
Atsushi Saito ◽  
Toshio Nakayama ◽  
...  
Keyword(s):  
Cerebral Aneurysm ◽  
Comprehensive Evaluation ◽  
Circle Of Willis ◽  
Aneurysm Model

scholarly journals In Vitro Study of Near-Wall Flow in a Cerebral Aneurysm Model with and without Coils

2010 ◽  
Vol 31 (8) ◽  
pp. 1521-1528 ◽  
Author(s):  
L. Goubergrits ◽  
B. Thamsen ◽  
A. Berthe ◽  
J. Poethke ◽  
U. Kertzscher ◽  
...  
Keyword(s):  
Cerebral Aneurysm ◽  
In Vitro Study ◽  
Vitro Study ◽  
Wall Flow ◽  
Aneurysm Model ◽  
Near Wall

scholarly journals A Cerebral Aneurysm Model for Clipping Training

2020 ◽  
Vol 48 (3) ◽  
pp. 161-167
Author(s):  
Hiroshi TENJIN ◽  
Osamu SAITO ◽  
Tsutomu TOKUYAMA ◽  
Toru KAWAKATSU ◽  
Yoshio OKANO
Keyword(s):  
Cerebral Aneurysm ◽  
Aneurysm Model

Angiographic C-arm CT visualization of the Woven EndoBridge Cerebral Aneurysm Embolization Device (WEB): First Experience in an Animal Aneurysm Model

2013 ◽  
Vol 24 (1) ◽  
pp. 43-49 ◽  
Author(s):  
T. Struffert ◽  
S. Lang ◽  
E. Adamek ◽  
T. Engelhorn ◽  
C. M. Strother ◽  
...  
Keyword(s):  
Cerebral Aneurysm ◽  
Aneurysm Embolization ◽  
Woven Endobridge ◽  
Aneurysm Model

316 PIV flow visualization analysis to predict a coil compaction using an anatomically identical cerebral aneurysm model

2007 ◽  
Vol 2006.19 (0) ◽  
pp. 82-83
Author(s):  
Toru MATSUMOTO ◽  
Kiyotaka IWASAKI ◽  
Takanobu YAGI ◽  
Momoko FUKUSHIMA ◽  
Akinori KAMODA ◽  
...  
Keyword(s):  
Flow Visualization ◽  
Cerebral Aneurysm ◽  
Visualization Analysis ◽  
Aneurysm Model

Evaluation of contact area and contact force between coil and cerebral aneurysm model

2019 ◽  
Vol 2019.32 (0) ◽  
pp. 2G31
Author(s):  
Yuta IKEDA ◽  
Kazuto Takashima ◽  
Kiyoshi YOSHINAKA ◽  
Kaihong YU ◽  
Makoto OHTA ◽  
...  
Keyword(s):  
Cerebral Aneurysm ◽  
Contact Force ◽  
Contact Area ◽  
Aneurysm Model

1502 Measurement of unsteady flow in the realistic cerebral aneurysm model and the prediction of rupture of aneurysm(2)

2006 ◽  
Vol 2006 (0) ◽  
pp. _1502-1_-_1502-4_
Author(s):  
Yasuhiko SAKAI ◽  
Reiji NOZUE ◽  
Shinichi ITO ◽  
Haruo ISODA ◽  
Takashi KOSUGI ◽  
...  
Keyword(s):  
Unsteady Flow ◽  
Cerebral Aneurysm ◽  
Aneurysm Model

560 An attempt to clarify the unsteady flow pattern and near wall stress field in the realistic cerebral aneurysm model by the PIV

2007 ◽  
Vol 2007.56 (0) ◽  
pp. 269-270
Author(s):  
Kouji Nagata ◽  
Shinichi Ito ◽  
Yasuhiko Sakai ◽  
Haruo Isoda ◽  
Takashi Kosugi ◽  
...  
Keyword(s):  
Stress Field ◽  
Unsteady Flow ◽  
Flow Pattern ◽  
Cerebral Aneurysm ◽  
Wall Stress ◽  
Aneurysm Model ◽  
Near Wall
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