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Patient-specific geometry modeling and mesh generation for simulating Obstructive Sleep Apnea Syndrome cases by Maxillomandibular Advancement

机译:特定于患者的几何建模和网格生成,通过上颌下颌进展模拟阻塞性睡眠呼吸暂停综合症病例

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The objective of this paper is the reconstruction of upper airway geometric models as hybrid meshes from clinically used Computed Tomography (CT) data sets in order to understand the dynamics and behaviors of the pre- and postoperative upper airway systems of Obstructive Sleep Apnea Syndrome (OSAS) patients by viscous Computational Fluid Dynamics (CFD) simulations. The selection criteria for OSAS cases studied are discussed because two reasonable pre- and postoperative upper airway models for CFD simulations may not be created for every case without a special protocol for CT scanning. The geometry extraction and manipulation methods are presented with technical barriers that must be overcome so that they can be used along with computational simulation software as a daily clinical evaluation tool. Eight cases are presented in this paper, and each case consists of pre- and postoperative configurations. The results of computational simulations of two cases are included in this paper as demonstration.
机译:本文的目的是从临床使用的计算机断层扫描(CT)数据集将上呼吸道几何模型重建为混合网格,以了解阻塞性睡眠呼吸暂停综合症(OSAS)术前和术后上呼吸道系统的动力学和行为)患者通过粘性计算流体动力学(CFD)模拟。讨论了研究OSAS病例的选择标准,因为如果没有特殊的CT扫描协议,可能不会为每种病例创建两个合理的术前和术后CFD模拟上呼吸道模型。提出了几何图形提取和操作方法具有必须克服的技术障碍,因此它们可以与计算仿真软件一起用作日常临床评估工具。本文介绍了8个病例,每个病例均由术前和术后构型组成。本文包括两种情况的计算仿真结果作为论证。

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