Title :
A laser scattering method for characterization of thromboemboli in whole blood
Author :
Kim, Jungkuk ; Lin, James C. ; Reynolds, Larry O.
Author_Institution :
Bioeng. Program, Illinois Univ., Chicago, IL, USA
Abstract :
An optical scattering method, which measures the size, number, and type of microemboli located in flowing whole blood, is described. A perturbation solution to the one speed radiative transport equation is used to model the scattering geometry. The approximate two-parameter phase function is used to investigate scattering characteristics of microemboli. The nature of microemboli is determined by comparing the scattered intensity ratio in two forward directions, while the size and number are determined by considering intensities scattered perpendicularly to the incident direction. This method has been tested with several sizes of polystyrene spheres, air bubbles, and blood dots. The results showed excellent agreement with calculations
Keywords :
light scattering; air bubbles; approximate two-parameter phase function; blood dots; laser scattering method; one speed radiative transport equation; optical scattering method; perturbation solution; polystyrene spheres; scattered intensity ratio; thromboemboli characterization; whole blood; Biological materials; Biomedical engineering; Detectors; Equations; Geometrical optics; Laser theory; Light scattering; Monitoring; Particle scattering; Red blood cells;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.415255
