scholarly journals 3D Exploration of the Brainstem in 50-micron Resolution MRI

2019 ◽  
Author(s):  
N Makris ◽  
RJ Rushmore ◽  
P Wilson-Braun ◽  
G Papadimitriou ◽  
I Ng ◽  
...  
Keyword(s):  
High Resolution ◽  
Cranial Nerve ◽  
Emotional Processing ◽  
Neural Systems ◽  
Clinical Neuroscience ◽  
Vital Importance ◽  
Nuclear Masses ◽  
3D Exploration ◽  
2D And 3D ◽  
3D Representations

AbstractThe brainstem, a structure of vital importance in the mammals, is currently becoming a principal focus in cognitive, affective and clinical neuroscience. Midbrain, pontine and medullar structures are the epicenter of conduit, cranial nerve and such integrative functions as consciousness, emotional processing, pain and motivation. In this study, we parcellated the nuclear masses and the principal fiber pathways that were visible in a high resolution T2-weighted MRI dataset of 50-micron isotropic voxels of a postmortem human brainstem. Based on this analysis, we generated a detailed map of the human brainstem. To assess the validity of our maps, we compared our observations with histological maps of traditional human brainstem atlases. Moreover, we reconstructed the motor, sensory and integrative neural systems of the brainstem and rendered them in 3D representations. We anticipate the utilization of these maps by the neuroimaging community at large for applications in basic neuroscience as well as in neurology, psychiatry and neurosurgery, due to their versatile computational nature in 2D and 3D representations in a publicly available capacity.

Isolated Congenital Absence of Cranial Nerves: Report of Two Cases

2018 ◽  
Vol 49 (06) ◽  
pp. 405-407
Author(s):  
Vivek Agarwal ◽  
Sumeet Dhawan ◽  
Naveen Sankhyan ◽  
Sameer Vyas
Keyword(s):  
High Resolution ◽  
Mr Imaging ◽  
Cranial Nerve ◽  
Clinical Presentation ◽  
Cranial Nerves ◽  
Rare Condition ◽  
Congenital Absence ◽  
The Third ◽  
Seventh Cranial Nerve ◽  
The Right

AbstractIsolated cranial nerve absence is a rare condition that can be diagnosed using high-resolution cranial nerve magnetic resonance (MR) imaging. Thorough clinical examination with proper knowledge of the course of cranial nerves may help diagnose this rare condition. We describe two cases, one each of, isolated congenital absence of the third and seventh cranial nerve with their clinical presentation. High-resolution T2-weighted MR imaging was done in both patients which revealed absence of cisternal segment of the right-sided third nerve and cisternal with canalicular segment of the right-sided facial nerve.

scholarly journals Results of identification and optimization of the parameters of axial piston pump

2021 ◽  
Author(s):  
Radovan Petrović ◽  
Nenad Todić ◽  
Slobodan Savić ◽  
Maja Andjelković
Keyword(s):  
High Resolution ◽  
Input Data ◽  
Simultaneous Presentation ◽  
Axial Piston Pump ◽  
Optimization Of Parameters ◽  
Axial Piston Pumps ◽  
Hydrodynamic Processes ◽  
3D Software ◽  
2D And 3D ◽  
Axial Piston

In the development of applicative software for mathematical modelling, identification, and optimization of parameters of axial piston pumps, special attention is paid to the real need of the engineers' practice. We used the original graphical 2D and 3D software for the application in real-time with a simultaneous presentation and processing in 24 windows of high resolution. Here it is mentioned that during optimization and identification of axial piston pump's parameters, we automatically form and present several hundreds of the complex 2D diagrams, which enables to intervene at any point in the study of hydrodynamic processes by the change of input data, where the following flow of identification and optimization is changed.

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