Sierra R, Zátonyi J, Bajka M, Székely G, Harders M
Computer Vision Laboratory, ETH Zürich, Switzerland.
Med Image Comput Comput Assist Interv. 2005;8(Pt 2):575-82. doi: 10.1007/11566489_71.
During hysteroscopy a hydrometra is maintained, i.e. the uterus is distended with liquid media to access and visualize the uterine cavity. The pressure and flow induced by the liquid are crucial tools for he gynecologists during surgery to obtain a clear view of the operation site. This paper presents two different aspects of hydrometra simulation, namely the distension of the uterine muscle and the liquid flow simulation in the cavity. The deformation of the organ's shape is computed offline based on finite element calculations whereas the flow is approximated on the fly by solving the simplified Navier-Stokes equations. The real-time capabilities of the presented algorithms as well as the level of fidelity achieved by the proposed methods are discussed.
在宫腔镜检查期间保持宫腔积脓状态，即子宫用液体介质充盈以进入并可视化子宫腔。液体产生的压力和流量是妇科医生在手术过程中获得手术部位清晰视野的关键工具。本文介绍了宫腔积脓模拟的两个不同方面，即子宫肌层的扩张和腔内液体流动模拟。器官形状的变形基于有限元计算离线计算，而流动则通过求解简化的纳维-斯托克斯方程实时近似。讨论了所提出算法的实时能力以及所提方法实现的逼真度水平。
