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跨直肠超声波矢量射弹成像用于时间分辨率可视化男性尿道的流动动力学:一项临床试点研究
Takuro Ishii1,2, Tomonori Yamanishi3, Tomohiko Kamasako3
1Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, Sendai, Miyagi, Japan.
Medical physics
|November 20, 2023
概括
这项研究引入了一种新的跨直肠超声技术,可视化尿道流动的动态,有助于诊断下尿道症状 (LUTS) 和改进向治疗.
科学领域:
- 医疗成像医学成像
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 流体动力学 流体动力学
背景情况:
- 精确的尿道流动动态可视化对于理解下尿道症状 (LUTS) 是必不可少的.
- 目前的方法缺乏评估局部尿道信息及其对流量的影响的能力,阻碍了个性化治疗.
- 需要诊断工具来观察尿道的形状和运动如何影响尿道流动.
研究的目的:
- 开发一种使用对比度增强的尿动力学矢量弹射成像 (CE-UroVPI) 框架的新型跨直肠超声波成像模式.
- 为了验证CE-UroVPI的临床适用性,以可视化时间解析的尿道流动力学.
主要方法:
- 创建了一个新的CE-UroVPI系统,配备了一个研究超声波平台和一个定制的穿直肠探针.
- 34名患有LUTS的男性患者接受了CE-UroVPI以捕获排泄期间的超声波数据.
- 定制软件处理数据以可视化尿液流动动态和尿道组织变形.
主要成果:
- 跨直肠CE-UroVPI系统成功地可视化了前列腺尿道中的时间解析,多向的尿流动力学.
- 高速成像 (1250 fps) 在所有空化阶段捕获了流动模式,最高速度为2.5 m/s.
- 复杂的流动模式,包括和喷流,在尿道阻塞或变形周围可视化.
结论:
- 开发的跨直肠CE-UroVPI系统有效地描绘了尿道内的液体结构相互作用.
- 这项技术为定量和精确的评估尿道空洞功能提供了潜力.
- 这些发现可能会导致改善LUTS患者的焦点和有效治疗方法.
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