Computed Axial Tomography
Computed axial tomography (CAT or CT scan) is a medical imaging method employing tomography.
Tomography is where digital geometry processing is used to generate a three-dimensional image of the
internals 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). CT
produces a volume of data which can be manipulated, through a process known as windowing, in order
to demonstrate various structures based on their ability to block the X-ray beam. Although historically
(see below) 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
(3D) representations of structures.
This is another example of something that computers can do that the human mind cannot do.
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Computed axial tomography (CAT or CT scan) is a medical imaging method employing tomography.
Tomography is where digital geometry processing is used to generate a three-dimensional image of the
internals 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). CT
produces a volume of data which can be manipulated, through a process known as windowing, in order
to demonstrate various structures based on their ability to block the X-ray beam. Although historically
(see below) 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
(3D) representations of structures.
This is another example of something that computers can do that the human mind cannot do.
Next
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