voxel

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voxel

 [vok´sel]
a volume element; the region in a tissue slice that corresponds to a pixel (picture element) in an image. See also computed tomography.

vox·el

(vok'sel),
A contraction for volume element, which is the basic unit of CT or MR reconstruction; represented as a pixel in the display of the CT or MR image.

voxel

An MRI term for the element of the three-dimensional space that corresponds to a pixel for a given slice thickness.

vox·el

(vok'sel)
A contraction for volume element, which is the basic unit of CT or MR reconstruction; represented as a pixel in the display of the CT or MR image.
References in periodicals archive ?
8, we show the reconstruction of a randomly chosen two-dimensional (2D) binary pattern of size 128 x 128 x 1 voxels. The reconstruction and the original pattern are visually identical, with a root mean square deviation of 2.8 kg/[m.sup.3].
When the nodal enhancement function value [E.sub.ball] of the voxel is larger than the threshold [T.sub.E], these voxels are selected as the nodule initial seed.
A general linear model (GLM) is commonly used for statistical assumptions of brain activation maps that convert a voxel time series into a space defined in the design matrix spanned by a set of basis vectors (3).
In addition, extreme positive deviations were significantly higher among the controls (1.14% of voxels), compared with schizophrenia and bipolar patients (0.83% for both).
* According to the index table, we obtain the boundary voxels, which have an intersection with the isometric surface.
The imaging protocol varies depending on the field of view (FOV), voxel size, scan time, milliampere and kilovolt settings, sensor sensitivity, and patient immobilization methods.
The proposed approach is carried out voxel by voxel, and pure voxels were identified and extracted using a plug-in called Pure Voxel Extraction (PVE), which was used to analyse the variability of radiodensity of one voxel with the mean of the values of a 124-voxel neighborhood (window of 5 x 5 x 5 voxels), as proposed by Elliot & Heck (2007a).
LH Histogram based method computes low and high values of each sample voxels which are labeled as FL and FH respectively.
To investigate significant differences of the regional VMHC between the HPs and the HCs, a two-sample t-test after correction with the 3dClustSim program (P <0.01, cluster sizes > 85 voxels) was performed by AFNI software (https://afni.nimh.nih.gov/pub/dist/doc/program_help/3d ClustSim.html).
Binary masks for each of the 10 ROIs were subsequently created in the automated pipeline before applying it on the processed images to collect SUV voxels. Each voxel from the labelled ROIs obtained from segmentation was used in this process.
Differences among voxels were assessed with the Kruskal-Wallis test and the Mann-Whitney U test with the level of significance set to 5%.
The resulting images had 91 x 109 x 91 voxels with a voxel size of 2 x 2 x 2 [mm.sup.3].