医学研究与教育 ›› 2020, Vol. 37 ›› Issue (3): 10-17.DOI: 10.3969/j.issn.1674-490X.2020.03.002

• 基础医学 • 上一篇    下一篇

试析超声多普勒血液层流频谱形成机制

秦任甲   

  1. 桂林医学院数理教研室, 广西 桂林 541001
  • 收稿日期:2020-03-10 出版日期:2020-06-25 发布日期:2020-06-25
  • 作者简介:秦任甲(1939—),男,广西桂林人,教授,主要从事人体物理学、血液流变学、医学物理教学改革研究。 E-mail: qinrenjia@126.com
  • 基金资助:
    广西高等教育本科教学改革工程项目(2019JGB302)

  • Received:2020-03-10 Online:2020-06-25 Published:2020-06-25

摘要: 旨在构建阐明经颅多普勒超声血液层流频谱图成因和丰富内涵的完整理论。依据血流动力学、血液流变学理论,运用创新假定即任一时刻Δt内直血管段血液遵循泊肃叶流动, 借助流层厚度、流层分区和频谱分区等关键创新概念, 利用创新揭示的红细胞密度、流层体积以及流层所包含红细胞数量随时间和空间的分布规律进行科学论证。最后获得3项创新结论,使本研究构建起预期的理论。

关键词: 超声多普勒, 血流频谱成因, 红细胞向轴集中效应

Abstract: The purpose of the study aims to construct a complete theory that clarifies the causes and rich connotations of blood laminar flow spectrum in transcranial doppler ultrasound. According to the theory of hemodynamics and hemorheology, the innovation hypothesis is that the blood of the straight blood vessels in time interval Δt follows the Poiseuille Flow, and the key innovation concepts such as the thickness and division of the flow layers, the division of the spectrum are applied. The red blood cell density, the volume of the stratum and the distribution of the number of red blood cells contained in the stratum in time and space are scientifically demonstrated. Finally, three innovation conclusions are obtained. This study builds the theory of expectations.

Key words: doppler ultrasound, doppler blood flow spectrum images, effects of red blood cell concentration

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