方法对比
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| CFD 血液动力学× | 光电容积脉搏波描记法× | |
|---|---|---|
| 领域 | 生物力学 | 生物力学 |
| 方法族 | Process / pipeline | Process / pipeline |
| 起源年份≠ | 2002 | 1937 |
| 提出者≠ | David Steinman | Hertzman |
| 类型≠ | Multi-physics finite element simulation | Optical signal acquisition and analysis pipeline |
| 开创性文献≠ | Steinman, D. A., Vinh, B., Ethier, C. R., Ojha, M., Cobbold, R. S., & Johnston, K. W. (2002). A numerical simulation of flow in a two-dimensional end-to-side anastomosis model. Journal of Biomechanical Engineering, 115(1), 112-118. link ↗ | Allen, J. (2007). Photoplethysmography and its application in clinical physiology. Physiology & Behavior, 107(4), 540-548. link ↗ |
| 别名 | Cardiovascular CFD, Blood flow simulation, Hemodynamic simulation | PPG, Pulse oximetry, Reflectance photometry |
| 相关 | 3 | 3 |
| 摘要≠ | Computational fluid dynamics (CFD) for hemodynamics solves the Navier-Stokes equations to simulate blood flow in realistic vascular geometries. Pioneered by researchers such as David Steinman, CFD hemodynamics reveals complex flow patterns, wall shear stress distributions, and hemodynamic factors implicated in atherosclerosis, aneurysm rupture, and device-induced thrombosis. | Photoplethysmography (PPG) measures blood volume changes in tissue using light absorption, providing a non-invasive optical window into cardiovascular dynamics. Originally developed by Hertzman in 1937, PPG is now ubiquitous in pulse oximetry, smartwatches, and research applications for monitoring heart rate, blood oxygenation, and vascular function. |
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