节律性膀收缩是否受到神经性膀中填充率和膀工作的影响?
Zachary E Cullingsworth1, Rocio Goodman2, Walid Farhat2
1Randolph-Macon College, Department of Physics, Engineering, and Astrophysics, Ashland, VA, USA.
Journal of pediatric urology
|November 8, 2025
概括
快速里埃转换 (FFT) 分析客观地量化了神经性膀 (NB) 中的节律性膀收缩 (RBC). 来自FFT的最高振幅频率 (HAF) 是一个可重复的测量值,在填充速率上稳定,不受运动工件的影响.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 生物医学工程 生物医学工程
- 数据分析 数据分析
背景情况:
- 在尿动力学研究 (UDS) 期间,神经性膀 (NB) 中常见的是节律性膀收缩 (RBC).
- 红细胞可能会导致膀缩,尽管压力低,需要客观量化.
- 目前的方法缺乏对膀内在活动的精确表征.
研究的目的:
- 为了验证快速里埃转换 (FFT) 分析以表征NB患者的红细胞.
- 评估FT衍生措施与视觉检查之间的关系.
- 为了评估FFT分析在不同膀填充率和运动器件的稳定性.
主要方法:
- 从70名NB患者 (0.5-18岁) 的115个UDS的回顾性分析.
- 基于Python的FFT应用到detrusor压力数据以导出最高振幅频率 (HAF).
- 与不同填充率的同一天研究中HAF可复制性的比较;使用贝叶斯因子,布兰德·奥尔特曼和ROC分析进行统计评估.
主要成果:
- HAF显示出高可重复性 (r = 0.85) 和在同一天的UDS中一致性,独立于填充率.
- 来自FT的HAF与视觉测量频率密切结合 (平均差异~5%).
- ROC分析确定了收缩检测的振幅切断值,显示了FFT在降低噪音方面的有效性.
结论:
- FFT分析提供了一种可靠,客观和可重复的方法来量化膀节律活动.
- 衍生的HAF是一个稳定的参数,不受填充速度或移动的影响.
- 建议HAF作为一个强大的泌尿动力学参数,用于对神经性膀的客观监测.
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