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Modeling of light scattering by biconcave and deformed red blood cells with the invariant imbedding T-matrix method.

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Title: Modeling of light scattering by biconcave and deformed red blood cells with the invariant imbedding T-matrix method.
Authors: Lei Bi1, Ping Yang1 pyang@tamu.edu
Source: Journal of Biomedical Optics. May2013, Vol. 18 Issue 5, p1-13. 13p.
Subjects: Invariant imbedding, T-matrix, Erythrocytes, Optical properties, Light scattering
Abstract: The invariant imbedding T-matrix method (II-TM) is employed to simulate the optical properties of normal biconcave and deformed red blood cells (RBCs). The phase matrix elements of a RBC model computed with the II- TM are compared with their counterparts computed with the discrete-dipole approximation (DDA) method. As expected, the DDA results approach the II-TM results with an increase in the number of dipoles per incident wavelength. Computationally, the II-TM is faster than the DDA when multiple RBC orientations are considered. For a single orientation, the DDA is comparable with or even faster than the II-TMbecause the DDA efficiently converges for optically soft particles; however, the DDA method demands significantly more computer memory than the II-TM. After the applicability of the II-TM is numerically confirmed, a comparison is conducted of the optical proper- ties of oxygenated and deoxygenated RBCs and of normal and deformed RBCs. The spectral variations of RBCs' optical properties are investigated in the wavelength range from 0.25 to 1.0 µm. Furthermore, the statistically averaged phase matrix of spheres and biconcave RBCs are compared. Conducted numerical simulations suggest the applicability of the II-TM for the inverse light scattering analysis and radiative transfer simulations in blood. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Biomedical Optics is the property of SPIE - International Society of Optical Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 93460610
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  Label: Title
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  Data: Modeling of light scattering by biconcave and deformed red blood cells with the invariant imbedding T-matrix method.
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  Data: <searchLink fieldCode="AR" term="%22Lei+Bi%22">Lei Bi</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Ping+Yang%22">Ping Yang</searchLink><relatesTo>1</relatesTo><i> pyang@tamu.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Biomedical+Optics%22">Journal of Biomedical Optics</searchLink>. May2013, Vol. 18 Issue 5, p1-13. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Invariant+imbedding%22">Invariant imbedding</searchLink><br /><searchLink fieldCode="DE" term="%22T-matrix%22">T-matrix</searchLink><br /><searchLink fieldCode="DE" term="%22Erythrocytes%22">Erythrocytes</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+properties%22">Optical properties</searchLink><br /><searchLink fieldCode="DE" term="%22Light+scattering%22">Light scattering</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The invariant imbedding T-matrix method (II-TM) is employed to simulate the optical properties of normal biconcave and deformed red blood cells (RBCs). The phase matrix elements of a RBC model computed with the II- TM are compared with their counterparts computed with the discrete-dipole approximation (DDA) method. As expected, the DDA results approach the II-TM results with an increase in the number of dipoles per incident wavelength. Computationally, the II-TM is faster than the DDA when multiple RBC orientations are considered. For a single orientation, the DDA is comparable with or even faster than the II-TMbecause the DDA efficiently converges for optically soft particles; however, the DDA method demands significantly more computer memory than the II-TM. After the applicability of the II-TM is numerically confirmed, a comparison is conducted of the optical proper- ties of oxygenated and deoxygenated RBCs and of normal and deformed RBCs. The spectral variations of RBCs' optical properties are investigated in the wavelength range from 0.25 to 1.0 µm. Furthermore, the statistically averaged phase matrix of spheres and biconcave RBCs are compared. Conducted numerical simulations suggest the applicability of the II-TM for the inverse light scattering analysis and radiative transfer simulations in blood. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Biomedical Optics is the property of SPIE - International Society of Optical Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1117/1.JBO.18.5.055001
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 13
        StartPage: 1
    Subjects:
      – SubjectFull: Invariant imbedding
        Type: general
      – SubjectFull: T-matrix
        Type: general
      – SubjectFull: Erythrocytes
        Type: general
      – SubjectFull: Optical properties
        Type: general
      – SubjectFull: Light scattering
        Type: general
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      – TitleFull: Modeling of light scattering by biconcave and deformed red blood cells with the invariant imbedding T-matrix method.
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            NameFull: Lei Bi
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            NameFull: Ping Yang
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            – D: 01
              M: 05
              Text: May2013
              Type: published
              Y: 2013
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              Value: 18
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              Value: 5
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            – TitleFull: Journal of Biomedical Optics
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