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CT Scanning order in Pattersonville-Rotterdam Junction
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CT Scanning

CT Scanning

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USA, Pattersonville-Rotterdam Junction
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Description
Advanced imaging services include STAT Spiral CT scanning with 3D reconstruction and DICOM capabilities. What is CT? Computed tomography (CT) is a diagnostic technique that uses x-rays and a computer to create pictures of multiple, thin, transverse sections of a patient's body. In conventional radiography, x-ray film simply records the results of an x-ray beam passing through the patient. In CT, axial (cross-sectional) images are reconstructed by computer analysis of transmitted x-ray intensity. This results in a more focused, detailed view of the region of interest.

History:
Since CT was introduced in the early 1970's, technology has advanced rapidly in design and capability. New machines consist of a round, tunnel-like gantry which houses the x-ray tube and an array of sensitive detectors, a table that moves into the gantry, and a computer console from which the equipment is operated. Veterinary patients are anesthetized and positioned on the table. The body part of interest is carefully positioned and centered in relation to the x-ray tube and detector housing (gantry) by use of external alignment lights. The animal is then slowly driven into the CT bore in 2 to 10 mm increments, and sequential slices through the area of interest are obtained. For each slice, the x-ray tube emits a finely collimated x-ray beam in multiple exposures as it rotates 360 degrees around the patient.

The intensity of the x-ray beams that pass through the patient is measured by the detectors. The information then passes to a computer, which evaluates and reconstructs the results into a picture displayed on a monitor.

On radiographs, one cannot usually perceive differences between tissues having slightly different physical properties. With CT, the image can be adjusted to show relatively small differences between tissues. Brain and spinal fluid, tumors, edema, blood clots, and necrosis can be recognized as separate entities rather than being lumped together as "opacities," which is how they are seen on x-rays.

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