Stereotactic Unit
Stereotactic Unit - Related Videos
10:35
Stereotactic Radiosurgery for Gynecologic Cancer
0 Views •
Cited by 14 •
2012
Stereotactic body radiotherapy (SBRT) involves image-guided, ablative radiation delivered to cancer targets refractory to chemotherapy or to conventional radiation treatment. The robotic-armed Cyberknife SBRT system, using sophisticated target localization, delivers hypofractionated radiation doses capable of sterilizing cancer targets. This article will consider new therapeutic roles of SBRT for gynecological cancers.
03:38
Measurement: Standard Units
0 Views •
2020
Every measurement provides three kinds of information: the size or magnitude of the measurement (a number), a standard of comparison for the measurement (a unit), and an indication of the uncertainty of the measurement. While the number and unit are explicitly represented when a quantity is written, the uncertainty is an aspect of the errors in the measurement results. The number in the measurement can be represented in different ways, including decimal form and scientific notation, which is...
03:02
Measurement: Derived Units
0 Views •
2020
The International System of Units or SI system, by international agreement, has fixed measurement units for seven fundamental properties: length, mass, time, temperature, electric current, amount of substance, and luminosity. These are called the SI base units. Units of measurement derived from the mathematical combination of SI base units are called SI-derived units. For example, the ratio of the SI unit for distance (meter; m) and the SI unit for time (second; s) gives the SI-derived unit...
07:54
Applying Stereotactic Injection Technique to Study Genetic Effects on Animal Behaviors
0 Views •
Cited by 15 •
2015
Stereotactic injection of lentiviruses expressing cDNAs or shRNAs can modulate gene expression in specific brain areas of mice. Here, we present a protocol to combine stereotactic injections with behavioral tasks, such as the Open Field Test (OFT) and the Forced Swim Test (FST).
05:08
A Stereotactically Guided Ablation Technique for Auditory Cortex Removal in Rats
0 Views •
2025
This video demonstrates a stereotactically-guided surgical procedure for ablating the auditory cortex in a rat. The steps include identifying anatomical landmarks in an anesthetized rat secured in a stereotactic frame, creating a window on the skull above the auditory cortex, aspirating the cortical layers, and providing post-operative care to assess the impact of the ablation on sound processing.
FAQs
Imaging data establish the target’s three-dimensional coordinates, while immobilization helps maintain the patient’s position. Computer-controlled positioning then aligns the patient with those coordinates before radiation delivery. This coordination links the planned target location to the treatment setup, supporting accurate dose placement and helping limit unintended exposure to nearby healthy structures.
Radiation beams or arcs approach the target from multiple directions and converge on tumor tissue. This arrangement concentrates the treatment effect at the defined target while limiting exposure along individual beam paths through surrounding tissue. The approach is therefore important when researchers study how precise dose delivery influences tumor response and normal-tissue effects.
Depending on its design, a stereotactic unit may support stereotactic radiosurgery or stereotactic body radiation therapy. Treatment is often delivered in one session or a small number of sessions rather than many sessions. The available format reflects the capabilities of the system and provides a framework for investigating focused radiation delivery in cancer research.
Preparation begins with imaging to define the target and establish coordinates. The patient is then immobilized, and computer-controlled positioning aligns the body with the planned treatment geometry. Finally, beams or arcs are directed from multiple angles so they converge on the target. These steps connect treatment planning, patient alignment, and radiation delivery.
Cancer researchers use these systems to study precise dose delivery, tumor response, and effects on normal tissue. Because the radiation can be focused on a defined three-dimensional target, experiments can examine how treatment location and dose placement relate to outcomes. The resulting observations support research into focused treatment strategies and tissue responses.
Image guidance supplies the spatial information needed to align treatment with the intended target. In research, this capability supports studies of image-guided treatment strategies by linking imaging data, patient positioning, and radiation delivery. It also helps investigators evaluate whether a highly focused treatment plan corresponds to the target location during the treatment process.