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Statistics-based classification on tissues in the mandibular region
Marcon, P. ; Bartušek, Karel ; Mikulka, J. ; Gescheidtová, E.
The authors present a statistical evaluation of T1-weighted and T2-weighted images of healthy and diseased human tissues. In each patient, the statistical data were evaluated from several tissues, namely the bone, bone marrow, muscle, fat, white matter and gray matter tissue types. Based on the acquired statistical data, we compiled new statistics. In the given tissue samples, we evaluated the following statistical quantities: standard deviation (s.d.), skewness, and kurtosis. The box plots and a small statistical database were created. This database is currently used to determine the tissues.
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Multiparametric Data Collection of Animal Tissues in Magnetic Resonance Imaging
Marcon, P. ; Bartušek, Karel
In this article a magnetic resonance multiparametric data collection is described. The spin echo and the gradient echo sequences for magnetic resonance measurement were used. Images obtained by a nuclear magnetic resonance tomographare proton density, longitudinal relaxation time T-1, transversal relaxation time T-2 and magnetic susceptibility weighted. As a measured sample chicken wing was used. Several parameters as a maximal value, minimal value, mean value and standard deviation were evaluated in skin, fat, muscle, bone and bone marrow tissues. Obtained data could be used for multiparametric analysis and for image segmentation.
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