Radial Acquisition
Radial Acquisition - Related Videos
02:59
Time-Lapse Imaging of Cortical Neuron Radial Migration in Transduced Mouse Embryonic Brain Slices
0 Views •
2025
Source: Wiegreffe, C., et. al., Time-lapse Confocal Imaging of Migrating Neurons in Organotypic Slice Culture of Embryonic Mouse Brain Using In Utero Electroporation. J. Vis. Exp. (2017) This video demonstrates time-lapse confocal microscopy to observe cortical neuron radial migration from the subventricular zone to the cortical plate via radial glial scaffolds in transduced mouse embryonic brain slices.
01:23
Radial System Protection
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2024
Radial systems employ time-delay overcurrent relays to reduce load interruptions. When a fault occurs, the nearest breaker opens first, while upstream breakers remain closed due to longer delay settings. This approach ensures minimal disruption to the rest of the system. In a radial system with a fault downstream of the third breaker, ideally, only the third breaker will open, isolating the fault and interrupting the load connected beyond it. The second breaker has a longer delay setting,...
02:39
Evaluating Motor Impairment in C. elegans Models Using the Radial Locomotion Assay
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2025
This video demonstrates the use of a radial locomotion assay to evaluate motor dysfunction in C. elegans expressing either wild-type or ALS-mutant human TDP-43 protein. Worms with varying levels of wild-type or mutant TDP-43 expression are allowed to crawl, and their movement is measured by the radial distance traveled from the central point on the assay plate. The assay distinguishes between mild, moderate, and severe motor impairments based on the distance traveled by the different C. elegans...
08:09
Use of an Eight-arm Radial Water Maze to Assess Working and Reference Memory Following Neonatal Brain Injury
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Cited by 61 •
2013
The eight-arm radial water maze is designed to evaluate reference and working memory performance simultaneously by requiring subjects to use extra-maze cues to locate escape platforms and remedies the limitations observed in land based radial arm maze designs.
01:11
Assessment of radial pulse
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2024
Assessment of Radial Pulse The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps: Hand Hygiene: • Begin by performing hand hygiene to prevent the transmission of microorganisms. Preparation: • Identification: Verify the patient's identity to ensure accurate and safe care. • Determination: Assess the need for pulse...
FAQs
Repeated visits to the central k-space region give each spoke information from the same important location, while the outer portions are collected at changing angles. This arrangement helps distribute inconsistencies caused by motion across the image rather than concentrating them along one set of acquisition lines. The result can be more motion-tolerant imaging in anatomically challenging examinations.
Successive spokes rotate by a prescribed angle, so the acquisition builds a distributed set of measurements rather than relying on one fixed orientation. That angular progression is central to how radial acquisition handles incomplete data: reconstruction can use the available measurements to form an image even when the full dataset is not collected. The sampling pattern therefore influences reconstruction demands.
Streaking is a key limitation to consider alongside the method’s motion tolerance. Although the sampling arrangement can spread motion-related inconsistencies, the resulting image may still show streaking artifacts, and reconstruction can require substantial processing. In clinical imaging, users must therefore evaluate both the improved tolerance of the acquisition and the quality of the reconstructed result.
Radial acquisition is particularly relevant when anatomy is difficult to keep still or motion cannot be fully controlled. The chest, abdomen, and heart are important clinical regions, along with other anatomically challenging areas. These applications reflect the method’s ability to support imaging under conditions where maintaining stillness or controlling breathing may be difficult.
Because motion-related inconsistencies are distributed across the image, radial acquisition can be useful when a patient cannot reliably suspend breathing. This is especially relevant for chest, abdominal, and cardiac imaging, where movement may complicate data collection. Its value is practical as well as technical: examinations can be performed under freer breathing conditions while using a motion-tolerant sampling strategy.
Flexible temporal sampling can improve clinical workflow when timing and motion are important features of an examination. This benefit is especially relevant for moving organs and free-breathing studies, where acquisition needs may vary across the examination. However, workflow advantages remain linked to reconstruction performance, because the collected measurements must still produce an image with acceptable quality.