Mueller-matrix invariants of optical anisotropy of the bile polycrystalline films in the diagnosis of human liver pathologies

2015 ◽  
Author(s):  
V. O. Ushenko ◽  
V. P. Prysyazhnyuk ◽  
O. V. Dubolazov ◽  
O. V. Savich ◽  
O. Y. Novakovska ◽  
...  
Keyword(s):  
Optical Anisotropy ◽  
Human Liver ◽  
Mueller Matrix ◽  
Polycrystalline Films ◽  
Matrix Invariants

Polarization singularity analysis of Mueller-matrix invariants of optical anisotropy of biological tissues samples in cancer diagnostics

2021 ◽  
Author(s):  
Volodymyr Ushenko ◽  
Liliya Trifonyuk ◽  
Yuriy A Ushenko ◽  
Oleksandr Dubolazov ◽  
Mykhailo Gorsky ◽  
...  
Keyword(s):  
Optical Anisotropy ◽  
Biological Tissues ◽  
Singularity Analysis ◽  
Mueller Matrix ◽  
Cancer Diagnostics ◽  
Matrix Invariants

Azimuth-invariant mueller-matrix differentiation of the optical anisotropy of biological tissues

2014 ◽  
Vol 117 (1) ◽  
pp. 152-157 ◽  
Author(s):  
V. A. Ushenko ◽  
M. I. Sidor ◽  
Yu. F. Marchuk ◽  
N. V. Pashkovskaya ◽  
D. R. Andreichuk
Keyword(s):  
Optical Anisotropy ◽  
Biological Tissues ◽  
Mueller Matrix

Mueller-matrix mapping of biological tissues in differential diagnosis of optical anisotropy mechanisms of protein networks

2015 ◽  
Vol 45 (3) ◽  
pp. 265-269 ◽  
Author(s):  
V A Ushenko ◽  
M I Sidor ◽  
Yu F Marchuk ◽  
N V Pashkovskaya ◽  
D R Andreichuk
Keyword(s):  
Differential Diagnosis ◽  
Optical Anisotropy ◽  
Biological Tissues ◽  
Mueller Matrix ◽  
Protein Networks ◽  
Matrix Mapping

scholarly journals TO DEVELOP FORENSIC CRITERIA FOR THE DIFFERENTIAL DIAGNOSIS OF INTRACEREBRAL HEMORRHAGE OF TRAUMATIC AND NON-TRAUMATIC ORIGIN USING MUELLER-MATRIX MICROSCOPY OF LINEAR DICHROISM

2021 ◽  
Vol 2 ◽  
pp. 21-24
Author(s):  
Marta Garazdiuk ◽  
Viktor Bachynskyі ◽  
Olena Nechytailo ◽  
Oleksandr Garazdiuk
Keyword(s):  
Differential Diagnosis ◽  
Intracerebral Hemorrhage ◽  
Causes Of Death ◽  
Brain Infarction ◽  
Linear Dichroism ◽  
Mueller Matrix ◽  
Ischemic Brain ◽  
Satisfactory Level ◽  
Traumatic Origin ◽  
Matrix Invariants

Differential diagnosis of intracerebral hemorrhage due to traumatic and non-traumatic origin is a challenging issue, especially in the absence of visible body injuries and other signs of violence. For a forensic expert-practitioner, the main thing is objectivity, accuracy, and speed of obtaining the result, which could fully satisfy the methods of laser polarimetry in the case of differential diagnosis of hemorrhages of traumatic and non-traumatic origin in the human brain matter. The purpose: To develop forensic criteria for the differential diagnosis of intracerebral hemorrhage of traumatic and non-traumatic origin using Mueller-matrix microscopy of linear dichroism. Materials and methods: The object of the study was brain matter samples, collected in 115 corpses of both sexes aged 22 to 86 years with accurately known causes of death. The causes of death included coronary artery disease, traumatic brain hemorrhage, ischemic brain infarction, and non-traumatic brain hemorrhages. Brain matter samples have been frozen rapidly, and histological sections have been made using a freezing microtome. The slices have been evaluated using the method of azimuthal-invariant Mueller-matrix microscopy, followed by mathematical and statistical processing of the results.  Results: significant topographic heterogeneity of Mueller-matrix invariants of brain matter samples linear dichroism maps among all research groups have been found. Individual and significant variations of dispersion, asymmetry, and kurtosis magnitude have confirmed the heterogeneity of Mueller-matrix invariants. The difference of images and histograms among groups is explained by the presence of necrotic changes in the case of ischemic brain necrosis and blood cells in the brain matter samples. For the set of central statistical moments of the 1st, 3rd, and 4th orders, which characterize the distributions of circular dichroism, the method of MM-microscopy in the differentiation of samples of non-hemorrhage and hemorrhage groups reaches a satisfactory level - 78% - 84%. Conclusions: Brain matter samples Muller-matrix microscopy of linear dichroism is effective for solving diagnostic problems of forensic medicine related to evaluating the cause of death from intracerebral hemorrhage of various origins. Diagnostic efficiency of Mueller-matrix mapping of polarization manifestations of linear dichroism method for intergroup differentiation of samples of deaths from traumatic hemorrhage (Group 2) and ischemic cerebral infarction (Group 3) reaches a satisfactory level of 79 - 84%.

scholarly journals Quantifying optical anisotropy in soft tissue membranes using Mueller matrix imaging

2021 ◽  
Vol 26 (10) ◽  
Author(s):  
Alexander W. Dixon ◽  
Andrew J. Taberner ◽  
Martyn P. Nash ◽  
Poul M. F. Nielsen
Keyword(s):  
Soft Tissue ◽  
Optical Anisotropy ◽  
Mueller Matrix

Mueller matrix ellipsometric study of multilayer spin-VCSEL structures with local optical anisotropy

2018 ◽  
Vol 112 (22) ◽  
pp. 221106 ◽  
Author(s):  
T. Fördös ◽  
K. Postava ◽  
H. Jaffrès ◽  
D. Quang To ◽  
J. Pištora ◽  
...  
Keyword(s):  
Optical Anisotropy ◽  
Mueller Matrix ◽  
Ellipsometric Study
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