slice selection

slice selection

An MRI term for exclusive excitation of spins in one slice, performed by the coincident combination of a gradient magnetic field and a narrow bandwidth or slice-selective RF pulse at a specific Larmor frequency.
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Affirmed Networks, the leader in virtualized mobile networks, has introduced the Affirmed Virtual Slice Selection Function (vSSF) which enables fine-grained network slicing across legacy, virtualized and multi-vendor network environments, the company said.
In 5G policy control will be the brain of the network, leveraging from the traditional control of QoS to the control of radio technologies to use, dynamic slice selection and subscriber steering.
Liver VOI Extraction and Largest Liver Slice Selection. For computational efficiency, the region of abdomen [I.sub.ROA] was firstly extracted from [I.sub.pre] to remove several nonabdominal slices and voxels.
Largest Liver Slice Selection. In the largest liver slice corresponding to the largest cross section of the liver, the liver was a whole object.
SGC was similar to our method except that there was no step of liver VOI extraction and largest liver slice selection, and the extraction of seed points was conducted by manual interaction on one or two axial slices.
In methods 1, 2, and 5, which examined alternative slices, the slice selection was started from the most apical one.
Because the tumor was located more frequently at the lower level than the upper level, the slice selection was started from the most apical slice when a partial sampling method examined alternative slices.
The prostate was processed as alternative slices, the slice selection was started from the most apical slice, and the peripheral 3-mm rims of unselected slices were then shaved using a standard scalpel blade (Figure 4).
The ten content chapters cover the following topics: the fundamentals of MRI; mathematics, physics, and imaging for MRI; basic physical principles; relaxation mechanisms; slice selection; frequency encoding; phase encoding; the spin-echo imaging sequence; scan parameters for the spin-echo imaging sequence, and further imaging sequences.
Lauterbur's contribution to the development of MR focused on the use of magnetic field gradients for spatial localization purposes, a significant notion responsible for slice selection and subsequent pixel localization within the slice.
The choice between 2-D and 3-D slice selection is important when postprocessing image analysis is considered.
This allows FSE pulse sequences to use thin slice selections, which increases spatial resolution.[21]