scholarly journals Enhancement of diffuse correlation spectroscopy tissue blood flow measurement by acoustic radiation force

2019 ◽  
Vol 11 (1) ◽  
pp. 301 ◽  
Author(s):  
Hao Ling ◽  
Zhiguo Gui ◽  
Huiyan Hao ◽  
Yu Shang
Keyword(s):  
Blood Flow ◽  
Flow Measurement ◽  
Acoustic Radiation ◽  
Radiation Force ◽  
Correlation Spectroscopy ◽  
Acoustic Radiation Force ◽  
Tissue Blood Flow ◽  
Blood Flow Measurement ◽  
Diffuse Correlation Spectroscopy

scholarly journals Portable Near-Infrared Technologies and Devices for Noninvasive Assessment of Tissue Hemodynamics

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Lin Hou ◽  
Yinqiu Liu ◽  
Lixia Qian ◽  
Yucong Zheng ◽  
Jinnan Gao ◽  
...  
Keyword(s):  
Blood Flow ◽  
Flow Measurement ◽  
Near Infrared ◽  
Tissue Oxygenation ◽  
Oxygen Metabolism ◽  
Correlation Spectroscopy ◽  
Tissue Blood Flow ◽  
Diffuse Optical Spectroscopy ◽  
Diffuse Correlation Spectroscopy ◽  
Custom Made

Tissue hemodynamics, including the blood flow, oxygenation, and oxygen metabolism, are closely associated with many diseases. As one of the portable optical technologies to explore human physiology and assist in healthcare, near-infrared diffuse optical spectroscopy (NIRS) for tissue oxygenation measurement has been developed for four decades. In recent years, a dynamic NIRS technology, namely, diffuse correlation spectroscopy (DCS), has been emerging as a portable tool for tissue blood flow measurement. In this article, we briefly describe the basic principle and algorithms for static NIRS and dynamic NIRS (i.e., DCS). Then, we elaborate on the NIRS instrumentation, either commercially available or custom-made, as well as their applications to physiological studies and clinic. The extension of NIRS/DCS from spectroscopy to imaging was depicted, followed by introductions of advanced algorithms that were recently proposed. The future prospective of the NIRS/DCS and their feasibilities for routine utilization in hospital is finally discussed.

MEASUREMENT OF BLOOD FLOW WITH FREELY DIFFUSIBLE INDICATORS AS INERT GASES, ANTIPYRINE, LABELLED WATER AND RUBIDIUM

1972 ◽  
Vol 68 (2_Supplb) ◽  
pp. S95-S111 ◽  
Author(s):  
Niels A. Lassen ◽  
Ole Andrée Larsen
Keyword(s):  
Blood Flow ◽  
Flow Measurement ◽  
Capillary Wall ◽  
Inert Gases ◽  
Tissue Blood Flow ◽  
Blood Flow Measurement

ABSTRACT Indicators which freely cross the capillary wall can be used for measurement of tissue blood flow in many different ways. Basically one can distinguish two categories of methods, viz. the ones where the indicator enters the tissue via the inflowing blood and the ones where the indicator is deposited locally in the tissue. The most important methods are briefly described with special emphasis on the theory of blood flow measurement.

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