scholarly journals Kinematic magnetic resonance imaging study of the brain stem and cervical cord by dynamic neck motion

2016 ◽  
Vol 75 (4) ◽  
pp. 439-447
Author(s):  
M. Mališ ◽  
B. Georgievski ◽  
I. Milić ◽  
A. Mijatović ◽  
V. Kovačević ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Brain Stem ◽  
Imaging Study ◽  
Cervical Cord ◽  
Magnetic Resonance Imaging Study ◽  
Resonance Imaging ◽  
Kinematic Magnetic Resonance Imaging ◽  
The Brain

scholarly journals Fractal dimension of phylogenetically different parts of the human cerebellum (magnetic resonance imaging study)

2020 ◽  
Vol 26 (2) ◽  
pp. 67-73
Author(s):  
N.I. Maryenko ◽  
O.Yu. Stepanenko
Keyword(s):  
Magnetic Resonance Imaging ◽  
Fractal Dimension ◽  
Magnetic Resonance ◽  
Lower Lobe ◽  
Imaging Study ◽  
Magnetic Resonance Imaging Study ◽  
Resonance Imaging ◽  
Tomographic Images ◽  
Average Value ◽  
The Brain

In recent years, fractal analysis has been increasingly used as a morphometric method, which allows to assess the complexity of the organization of quasi-fractal biological structures, including the cerebellum. The aim of the study was to determine the value of fractal dimension of phylogenetically different parts of the cerebellum by studying magnetic resonance imaging of the brain using the method of pixel dilation and to identify gender and age characteristics of individual variability of fractal dimension of the cerebellum and its external linear contour. The study was performed on the magnetic resonance images of the brain of 120 relatively healthy patients in age 18-86 years (65 women, 55 men). T2 weighted tomographic images were investigated. Fractal analysis was performed using the method of pixel dilation in the author’s modification. Fractal dimension (FD) values were determined for cerebellar tomographic images segmented with brightness values of 100 (FD100), 90 (FD90) and in the range of 100-90 (FD100-90 or fractal dimension of the outer cerebellar contour) in its upper and lower lobes, which include phylogenetically different zones. The obtained data were processed using generally accepted statistical methods. The average value of FD100 of the upper lobe of the cerebellum was 1.816±0.005, the lower lobe – 1.855±0.005. The average value of FD90 of the upper lobe of the cerebellum was 1.734±009, the lower lobe – 1.768±0.009. The average value of FD100-90 of the upper lobe of the cerebellum was 1.370±0.009, the lower lobe – 1.431±0.008. All three values of the fractal dimension of the lower lobe, which lobules have a lower phylogenetic age, are statistically significantly higher than the corresponding values of the fractal dimension of the upper lobe, have a more pronounced correlation with age than in the upper lobe. The developed research algorithm can be used to assess the condition of the cerebellum as an additional morphometric method during magnetic resonance imaging study of the brain.

scholarly journals Writing affects the brain network of reading in Chinese: A functional magnetic resonance imaging study

2012 ◽  
Vol 34 (7) ◽  
pp. 1670-1684 ◽  
Author(s):  
Fan Cao ◽  
Marianne Vu ◽  
Derek Ho Lung Chan ◽  
Jason M. Lawrence ◽  
Lindsay N. Harris ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Functional Magnetic Resonance Imaging ◽  
Imaging Study ◽  
Brain Network ◽  
Magnetic Resonance Imaging Study ◽  
Functional Magnetic Resonance ◽  
Resonance Imaging ◽  
The Brain
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