News tagged with ct scan

Related topics: radiation dose · radiation exposure · emergency department · heart disease · ionizing radiation

Concussions in kids are detectable by blood test

Researchers at Orlando Health have developed a blood test that can detect even the most subtle signs of a concussion in children, correctly identifying the presence of traumatic brain injuries 94 percent of the time in a ...

Nov 09, 2015
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Early CT scan impacts management of suspected CAP

(HealthDay)—Computed tomography (CT) findings affect the diagnosis and management of suspected community-acquired pneumonia (CAP), according to a study published in the Oct. 15 issue of the American Journal of Respiratory ...

Oct 29, 2015
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Computed tomography

Computed tomography (CT) is a medical imaging method employing tomography. Digital geometry processing is used to generate a three-dimensional image of the inside of an object from a large series of two-dimensional X-ray images taken around a single axis of rotation. The word "tomography" is derived from the Greek tomos (slice) and graphein (to write). Computed tomography was originally known as the "EMI scan" as it was developed at a research branch of EMI, a company best known today for its music and recording business. It was later known as computed axial tomography (CAT or CT scan) and body section röntgenography.

CT produces a volume of data which can be manipulated, through a process known as "windowing", in order to demonstrate various bodily structures based on their ability to block the X-ray/Röntgen beam. Although historically the images generated were in the axial or transverse plane, orthogonal to the long axis of the body, modern scanners allow this volume of data to be reformatted in various planes or even as volumetric (3D) representations of structures. Although most common in medicine, CT is also used in other fields, such as nondestructive materials testing. Another example is the DigiMorph project at the University of Texas at Austin which uses a CT scanner to study biological and paleontological specimens.

This text uses material from Wikipedia, licensed under CC BY-SA

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