Mean fiber density was then calculated by dividing the total number of fibers within the sampling field (N) by its area (N/mm).
From these measurements the mean fiber density (by dividing the number of myelinated fibers within the circular frames by the areas of the circular frames, fibers/mm) and the total number of nerve fibers (by multiplying the mean fiber density with the total cross-sectional area of the whole nerve) were estimated.
The total number of fibers was estimated by multiplying the mean fiber density by the total cross-sectional area of the whole nerve cross section which was measured in the light microscopic analysis.
Several candidate measures, such as fiber numbers, mean fiber length, fiber density, and mean fraction anisotropy can be selected as the connectivity measure [9], [31], [80].
Several candidate measures, such as fiber numbers, mean fiber length, fiber density, and mean fraction anisotropy, can be selected as the connectivity measure [ 25, 38, 39, 93].
In the masseter there was no significant difference in the mean nerve fiber density when men were compared with women.
Mean subbasal nerve fiber density near the corneal apex was 45.94 ± 5.20 mm/mm2 and mean subbasal and interconnecting nerve fiber diameters in the same region were 1.51 ± 0.74 μm and 0.69 ± 0.26 μm, respectively.
TH-positive fiber density was calculated as mean area fraction per image using ImageJ software.
To determine fiber density in the striatum, the mean optical density (O.D).
Therefore, this distance detector system (simultaneous expression of α-AR and β-AR on immune cells) provides a means for the body to define sites of permitted inflammation (low SNS fiber density, low catecholamine concentration) and, on the other hand, prevent uncontrolled spreading of inflammation by preventing bystander activation (high SNS fiber density, high catecholamine concentration).
Among these, fractional anisotropy (FA) reflects axonal integrity and fiber organization, mean diffusivity (MD) measures the overall magnitude of diffusion, axial diffusivity (AD) is associated with fiber density and axon intrinsic characteristics, whereas radial diffusivity (RD) reflects the degree of myelination.
