单打开和关闭和连续脉冲式流动测试仪的比较研究
Hao Wang1, Zhiqian Lu2, Zhongxi Zhou2,3
1School of Electrical and Information Engineering, Jiangsu University, Zhenjiang, Jiangsu Province, 212013, P. R. China.
Cardiovascular engineering and technology
|August 19, 2024
概括
单一的开闭试验器 (SOCVT) 与连续脉冲式流动试验器 (CPFVT) 相比,在关闭体积分数上没有统计差异. 这表明SOCVT可能是一个可行的替代品对关节检测.
科学领域:
- 生物医学工程 生物医学工程
- 心血管设备测试测试器
- 血液动力学 血液动力学
背景情况:
- 准确评估中枢功能对于患者的治疗结果至关重要.
- 现有的门测试方法在模拟生理条件方面存在局限性.
- 为了可靠的设备评估,需要对体外试验进行标准化.
研究的目的:
- 为了比较单个开闭试验器 (SOCVT) 和连续脉动流动试验器 (CPFVT) 之间的闭合体积分量的测量.
- 使用这两种仪器,评估使用这两种仪器进行的中枢检测的准确性和潜在差异.
主要方法:
- 进行了一项比较研究,使用了四种 mitra 状况 (正常,40%扩张,60%扩张,剪切修复).
- 血液动力学条件是根据ISO 5840标准选择的.
- 在SOCVT和CPFVT中测量了闭合体积分数,并计算了16个案例的错误.
主要成果:
- 连续脉动流动测试仪 (CPFVT) 的流速波形更多地受到血液动力学条件的影响,而不是形态.
- 12个案例在闭合体积分数中显示出10-20%的错误,而3个案例显示出2.2-5.5%的错误.
- 在所有测试的中枢条件中,在CPFVT和SOCVT之间的闭合体积分数中没有发现统计学上显著的差异 (P > 0.05).
结论:
- 尽管存在一些测量错误,但SOCVT和CPFVT对中枢的闭合体积分数结果相似.
- 使用典型的中枢流波形标准化的SOCVT测试可以提高其实用性.
- SOCVT 提供了一种潜在的替代性对关节检测,提供了一种简化方法.
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