低轮手术中的计算流体动力学计算:一个队列研究
Jaakko Ormiskangas1,2, Olli Valtonen3,4, Teemu Harju3,4
1Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland. jaakko.ormiskangas@tuni.fi.
概括
下轮手术可以减少鼻腔空气流壁剪切力. 这些力量的变化与患者报告的鼻腔阻塞相关,这表明计算流体动力学 (CFD) 可以评估手术后的气流.
科学领域:
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 生物医学工程 生物医学工程
- 医疗成像医学成像
背景情况:
- 下轮缩是鼻腔阻塞的常见原因之一.
- 鼻腔手术,包括轮减少,旨在改善气流和患者的生活质量.
- 计算流体动力学 (CFD) 提供了一种模拟和分析鼻腔内空气流动模式的方法.
研究的目的:
- 用CFD模拟来评估下层轮手术对鼻腔空气流的影响.
- 为了将CFD衍生的气流参数与患者报告的结果和客观测量相关联.
- 评估CFD在评估手术后鼻腔气流变化的实用性.
主要方法:
- 针对25名患者的圆束计算机断层扫描 (CBCT) 图像创建了特定患者的CFD模型.
- 在低级轮手术前和后进行了稳定的吸气气流和热传递模拟.
- 将CFD结果与视觉模拟尺度 (VAS) 对鼻腔阻塞,格拉斯哥健康状况清单和声学鼻测进行了比较.
主要成果:
- 在手术后操作的下层轮区域中,观察到全壁切削力的统计显著下降 (p < 0.01).
- 主观鼻腔阻塞 (VAS分数) 的变化与墙壁剪切力变化 (p = 0.04) 呈现出统计学上显著的相关性.
- 在CFD结果和声学鼻计或格拉斯哥健康状况清单之间没有发现显著的相关性.
结论:
- 较低的轮手术导致墙壁总剪切力减少,表明气流动力学发生了变化.
- 墙壁剪力变化与主观阻塞严重程度之间的相关性突显了CFD的临床相关性.
- CFD模拟显示了作为评估鼻腔气流和手术结果的有价值工具的潜力.
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