控制的外部大腿压缩:模拟静脉血液动力学变化的可行方法,类似于深静脉血栓形成
Rimvydas Eitminavičius1, Rytis Jurkonis2, Sami Maja3
1Biomedical Engineering Institute, Kaunas University of Technology, K. Barsausko St. 59, 51423, Kaunas, Lithuania. rimvydas.eitminavicius@ktu.lt.
Annals of biomedical engineering
|February 16, 2026
概括
这项研究展示了一种新的方法来模拟使用受控大腿压缩的深静脉血栓症 (DVT). 该技术有助于开发和测试用于DVT查的非侵入性诊断工具.
科学领域:
- 生物医学工程 生物医学工程
- 心血管研究研究心血管研究
- 医疗模拟 医疗模拟
背景情况:
- 深静脉血栓症 (DVT) 是一种严重的疾病,具有致命的肺栓塞等风险.
- 目前的诊断方法,如超声波,需要专门的专业知识.
- 非侵入性技术,如光反射整形学 (LRR) 和静脉闭塞整形学 (VOP) 缺乏标准化和一致性.
研究的目的:
- 开发一种模拟方法,用于类似DVT的静脉血液动力学变化.
- 促进开发和测试替代性DVT查方法.
- 使用受控的外部大腿压缩和超声波可视化来模拟DVT.
主要方法:
- 采集了30名健康志愿者的LRR和VOP信号,使用了VasoScreen 5000-4000系统.
- 通过受控的外部大腿压缩诱导不同程度的静脉狭窄.
- 在整个压缩和数据收集过程中采用超声波指导.
主要成果:
- LRR参数显示了统计学上显著的,但与不同狭窄水平的轻微变化.
- VOP结果在狭窄水平之间表现出更明显的差异,70%和100%的狭窄表现最好.
- 70%和100%狭窄的测量分别在47%和70%的病例中低于正常限值,流出时间常数增加.
结论:
- 呈现的血液动力学变化是模拟DVT状况的可行方法.
- 控制的外部大腿压力有效地模仿了与DVT相关的静脉变化.
- 这种模拟方法支持非侵入性DVT诊断工具的进步.
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