Ct Scanner Procedure
Ct Scanner Procedure - Related Videos
09:36
Safety Precautions and Operating Procedures in an (A)BSL-4 Laboratory: 4. Medical Imaging Procedures
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Cited by 8 •
2016
Here, we present an overview of the preparation and animal handling procedures required to safely perform medical imaging in an animal biosafety level 4 laboratory. Computed tomography of a mock-infected guinea pig illustrates these procedures that may be used to evaluate the disease caused by a high consequence pathogen.
09:19
TSPO-PET/CT Imaging to Detect Infarct Formation in a Mouse Model of Ischemic Stroke
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2025
Source: Chaney, A. M., et.al. PET Imaging of Neuroinflammation Using [11C]DPA-713 in a Mouse Model of Ischemic Stroke. J. Vis. Exp. (2018). This video demonstrates a technique for in vivo imaging of neuroinflammation in a mouse model of ischemic stroke using a TSPO-specific radiotracer. Following injection, the radiotracer binds to TSPO, a protein located on the outer mitochondrial membrane and overexpressed in activated immune cells. A PET/CT scanner detects the radiotracer's distribution and...
08:25
Using Flatbed Scanners to Collect High-resolution Time-lapsed Images of the Arabidopsis Root Gravitropic Response
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Cited by 6 •
2014
This protocol describes a process for rapid collection of images of Arabidopsis seedlings responding to a gravity stimulus using commercially-available flatbed scanners. The method allows for inexpensive, high-volume capture of high-resolution images amenable for downstream analysis algorithms.
07:01
Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
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Cited by 5 •
2016
A scanner for imaging magnetic particles in planar samples was developed using the planar frequency mixing magnetic detection technique. The magnetic intermodulation product response from the nonlinear nonhysteretic magnetization of the particles is recorded upon a two-frequency excitation. It can be used to take 2D images of thin biological samples.
05:27
FDG Based PET/CT Scan: A Method of Using Radiotracer for Non-invasive Imaging of Tumor Metabolism
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2023
This article describes multimodality imaging of cancerous tissues with PET and CT diagnostic imaging by using a radiotracer 18F-FDG. Cancerous tissue with high glycolytic activity uptakes more 18F-FDG.
FAQs
The rotating X-ray tube sends radiation through the body from multiple angles, while detectors measure the radiation that passes through. A computer combines these measurements to reconstruct cross-sectional slices rather than relying on a single projection. This coordinated acquisition allows clinicians to examine internal anatomy in detail and supports later review in different image formats.
Reconstructed slices let clinicians inspect the body section by section, which can clarify the location and extent of findings. The same collected data can also be displayed as three-dimensional images, providing an additional view of anatomy. Using both formats can support evaluation of disease, injury, or structures relevant to surgical planning.
Some examinations use intravenous or oral contrast to make particular structures more visible. Intravenous contrast can improve visualization of blood vessels, organs, or abnormal tissue, while oral contrast can contribute to examination of internal anatomy. Its use depends on the clinical purpose of the scan, and clinicians consider contrast-related issues when selecting the examination.
The patient remains still on a motorized table while the scanner acquires measurements. Keeping the body still helps preserve the clarity and alignment of the reconstructed images. Depending on the examination, the scan may also include intravenous or oral contrast, selected to improve visualization of the structures relevant to the clinical question.
CT supports several time-sensitive and planning-focused uses. In emergency care, it can help evaluate injury or disease rapidly. Clinicians also use it for cancer staging, surgical planning, and monitoring treatment. The appropriate image display and contrast approach depend on which anatomy or abnormal tissue must be assessed.
A CT examination provides detailed information that can assist diagnosis, staging, planning, or follow-up, but it also involves exposure to radiation. Clinical decisions therefore weigh the expected diagnostic value against that exposure. Contrast-related considerations are assessed at the same time, particularly when enhanced visualization of vessels, organs, or abnormal tissue is needed.