Optimal shape determination of guidewire for liver catheterization based on 3D vessel structure
Catheterization is the treatment insert tube which name is catheter from thighs or wrists artery and discharge fluid, give medicine to affected area directly etc. Recently this treatment is commonly performed because make only a small hole to the patient body thus patient bears little risks. At the catheterization, expert surgeons experience and knowledge are needed for making optimal shape of guidewire. There is not enough established objective criterion to decide the shape of guidewire. Therefore this researchs goal is to develop semi-automated system for the determination of the optimal shape of guidewire’s tip at the vessel bifurcation. In the previous research, we determined the optimal shape of guidewire two-dimensionally to reduce computation time. However, two-dimensionally determination has problem which is not shown real movement of the treatment. In this research, we extend the previous method to determine the optimal shape three-dimensionally and simulate more realistic movement of guidewire. In order to reduce the computation time, we consider the real operation of catheterization and the position of the tip of the catheter in the vessel. We decided position and direction of tip of catheter manually in this research. Moreover,we perform the phantom experiment to validate the proposed method whether the guidewire could reach the target branch vessel using the estimated shape of the guidewire. At the phantom experiment and 3D determination by proposed method, we got same result and it conforms to the real. One of the shapes of the guidewires tip which is “A arrive to target branch thus the other shape which is “B doesnt arrive to target branch.
component 3D Determination Statistical Shape Model Phantom Catheterization
Shunta Hirayama Toshiyuki Okada Motoi Kinishi Keigo Osuga Masatoshi Hori Yen-Wei Chen Yoshinobu Sato
Graduate School of Engineering, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu-shi, Siga, 525-85 Graduate School of Medicine. Osaka University, 2-2 Yamadaoka. Suita-shi. Osaka. 565-0871 Japan
国际会议
成都
英文
656-659
2010-06-23（万方平台首次上网日期，不代表论文的发表时间）