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- Title
Estimated pretreatment hemodynamic prognostic factors of aneurysm recurrence after endovascular embolization.
- Authors
Kouichi Misaki; Hiroyuki Takao; Takashi Suzuki; Kengo Nishimura; Issei Kan; Ichiro Yuki; Toshihiro Ishibashi; Makoto Yamamoto; Yuichi Murayama; Misaki, Kouichi; Takao, Hiroyuki; Suzuki, Takashi; Nishimura, Kengo; Kan, Issei; Yuki, Ichiro; Ishibashi, Toshihiro; Yamamoto, Makoto; Murayama, Yuichi
- Abstract
<bold>Background: </bold>Hemodynamic factors play important roles in aneurysm recurrence after endovascular treatment.<bold>Objective: </bold>Predicting the risk of recurrence by hemodynamic analysis using an untreated aneurysm model is important because such prediction is required before treatment.<bold>Methods: </bold>We retrospectively analyzed hemodynamic factors associated with aneurysm recurrence from pretreatment models of five recurrent and five stable posterior communicating artery (Pcom) aneurysms with no significant differences in aneurysm volume, coil packing density, or sizes of the dome, neck, or Pcom. Hemodynamic factors of velocity ratio, flow rate, pressure ratio, and wall shear stress were investigated.<bold>Results: </bold>Among the hemodynamic factors investigated, velocity ratio and flow rate of the Pcom showed significant differences between the recurrence group and stable group (0.630 ± 0.062 and 0.926 ± 0.051, P= 0.016; 56.4 ± 8.9 and 121.6 ± 6.7, P= 0.008, respectively).<bold>Conclusions: </bold>Our results suggest that hemodynamic factors may be associated with aneurysm recurrence among Pcom aneurysms. Velocity and flow rate in the Pcom may be a pretreatment prognostic factor for aneurysm recurrence after endovascular treatment.
- Subjects
JAPAN; INTRACRANIAL aneurysms; HEMODYNAMICS; THERAPEUTIC embolization; DISEASE relapse; INTERNAL carotid artery; COMPUTATIONAL fluid dynamics; PROGNOSIS; BLOOD circulation; CEREBRAL circulation; RISK assessment; RETROSPECTIVE studies; PHYSIOLOGY; THERAPEUTICS
- Publication
Technology & Health Care, 2017, Vol 25, Issue 5, p843
- ISSN
0928-7329
- Publication type
journal article
- DOI
10.3233/THC-160495